94 results on '"Du, Haowei"'
Search Results
2. Inverted triplications formed by iterative template switches generate structural variant diversity at genomic disorder loci
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Grochowski, Christopher M., Bengtsson, Jesse D., Du, Haowei, Gandhi, Mira, Lun, Ming Yin, Mehaffey, Michele G., Park, KyungHee, Höps, Wolfram, Benito, Eva, Hasenfeld, Patrick, Korbel, Jan O., Mahmoud, Medhat, Paulin, Luis F., Jhangiani, Shalini N., Hwang, James Paul, Bhamidipati, Sravya V., Muzny, Donna M., Fatih, Jawid M., Gibbs, Richard A., Pendleton, Matthew, Harrington, Eoghan, Juul, Sissel, Lindstrand, Anna, Sedlazeck, Fritz J., Pehlivan, Davut, Lupski, James R., and Carvalho, Claudia M.B.
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- 2024
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3. Thermal performance and applied evaluation of the pre-bored grouting planted nodular pile in warm frozen soil
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Zhang, Qi, Zhang, Tianqi, Dong, Yuanhong, Zhang, Tianyuan, Wei, Yao, Hao, Ruoyu, Zhao, Nanlu, and Du, Haowei
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- 2024
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4. Considerations for reporting variants in novel candidate genes identified during clinical genomic testing
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Abouhala, Siwaar, Albert, Jessica, Almalvez, Miguel, Alvarez, Raquel, Amin, Mutaz, Anderson, Peter, Aradhya, Swaroop, Ashley, Euan, Assimes, Themistocles, Auriga, Light, Austin-Tse, Christina, Bamshad, Mike, Barseghyan, Hayk, Baxter, Samantha, Behera, Sairam, Beheshti, Shaghayegh, Bejerano, Gill, Berger, Seth, Bernstein, Jon, Best, Sabrina, Blankenmeister, Benjamin, Blue, Elizabeth, Boerwinkle, Eric, Bonkowski, Emily, Bonner, Devon, Boone, Philip, Bornhorst, Miriam, Brand, Harrison, Buckingham, Kati, Calame, Daniel, Carter, Jennefer, Casadei, Silvia, Chadwick, Lisa, Chavez, Clarisa, Chen, Ziwei, Chinn, Ivan, Chong, Jessica, Coban-Akdemir, Zeynep, Cohen, Andrea J., Conner, Sarah, Conomos, Matthew, Coveler, Karen, Cui, Ya Allen, Currin, Sara, Daber, Robert, Dardas, Zain, Davis, Colleen, Dawood, Moez, de Dios, Ivan, de Esch, Celine, Delaney, Meghan, Delot, Emmanuele, DiTroia, Stephanie, Doddapaneni, Harsha, Du, Haowei, Duan, Ruizhi, Dugan-Perez, Shannon, Duong, Nhat, Duyzend, Michael, Eichler, Evan, Emami, Sara, Fraser, Jamie, Fusaro, Vincent, Galey, Miranda, Ganesh, Vijay, Garcia, Brandon, Garimella, Kiran, Gibbs, Richard, Gifford, Casey, Ginsburg, Amy, Goddard, Page, Gogarten, Stephanie, Gogate, Nikhita, Gordon, William, Gorzynski, John E., Greenleaf, William, Grochowski, Christopher, Groopman, Emily, Sousa, Rodrigo Guarischi, Gudmundsson, Sanna, Gulati, Ashima, Hall, Stacey, Harvey, William, Hawley, Megan, Heavner, Ben, Horike-Pyne, Martha, Hu, Jianhong, Huang, Yongqing, Hwang, James, Jarvik, Gail, Jensen, Tanner, Jhangiani, Shalini, Jimenez-Morales, David, Jin, Christopher, Saad, Ahmed K., Kahn-Kirby, Amanda, Kain, Jessica, Kaur, Parneet, Keehan, Laura, Knoblach, Susan, Ko, Arthur, Kundaje, Anshul, Kundu, Soumya, Lancaster, Samuel M., Larsson, Katie, Lee, Arthur, Lemire, Gabrielle, Lewis, Richard, Li, Wei, Li, Yidan, Liu, Pengfei, LoTempio, Jonathan, Lupski, James (Jim), Ma, Jialan, MacArthur, Daniel, Mahmoud, Medhat, Malani, Nirav, Mangilog, Brian, Marafi, Dana, Marmolejos, Sofia, Marten, Daniel, Martinez, Eva, Marvin, Colby, Marwaha, Shruti, Mastrorosa, Francesco Kumara, Matalon, Dena, May, Susanne, McGee, Sean, Meador, Lauren, Mefford, Heather, Mendez, Hector Rodrigo, Miller, Alexander, Miller, Danny E., Mitani, Tadahiro, Montgomery, Stephen, Moyses, Mariana, Munderloh, Chloe, Muzny, Donna, Nelson, Sarah, Nguyen, Thuy-mi P., Nguyen, Jonathan, Nussbaum, Robert, Nykamp, Keith, O'Callaghan, William, O'Heir, Emily, O'Leary, Melanie, Olsen, Jeren, Osei-Owusu, Ikeoluwa, O'Donnell-Luria, Anne, Padhi, Evin, Pais, Lynn, Pan, Miao, Panchal, Piyush, Patterson, Karynne, Payne, Sheryl, Pehlivan, Davut, Petrowski, Paul, Pham, Alicia, Pitsava, Georgia, Podesta, Astaria`Sara, Ponce, Sarah, Porter, Elizabeth, Posey, Jennifer, Prosser, Jaime, Quertermous, Thomas, Rai, Archana, Ramani, Arun, Rehm, Heidi, Reuter, Chloe, Reuter, Jason, Richardson, Matthew, Rivera-Munoz, Andres, Rubio, Oriane, Sabo, Aniko, Salani, Monica, Samocha, Kaitlin, Sanchis-Juan, Alba, Savage, Sarah, Scott, Evette, Scott, Stuart, Sedlazeck, Fritz, Shah, Gulalai, Shojaie, Ali, Singh, Mugdha, Smith, Kevin, Smith, Josh, Snow, Hana, Snyder, Michael, Socarras, Kayla, Starita, Lea, Stark, Brigitte, Stenton, Sarah, Stergachis, Andrew, Stilp, Adrienne, Sutton, V. Reid, Tai, Jui-Cheng, Talkowski, Michael (Mike), Tise, Christina, Tong, Catherine (Cat), Tsao, Philip, Ungar, Rachel, VanNoy, Grace, Vilain, Eric, Voutos, Isabella, Walker, Kim, Wei, Chia-Lin, Weisburd, Ben, Weiss, Jeff, Wellington, Chris, Weng, Ziming, Westheimer, Emily, Wheeler, Marsha, Wheeler, Matthew, Wiel, Laurens, Wilson, Michael, Wojcik, Monica, Wong, Quenna, Xiao, Changrui, Yadav, Rachita, Yi, Qian, Yuan, Bo, Zhao, Jianhua, Zhen, Jimmy, Zhou, Harry, Chong, Jessica X., Berger, Seth I., Smith, Erica, Calame, Daniel G., Hawley, Megan H., Rivera-Munoz, E. Andres, Bamshad, Michael J., and Rehm, Heidi L.
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- 2024
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5. SNV/indel hypermutator phenotype in biallelic RAD51C variant: Fanconi anemia
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Zemet, Roni, Du, Haowei, Gambin, Tomasz, Lupski, James R., Liu, Pengfei, and Stankiewicz, Paweł
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- 2023
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6. Haploinsufficiency of ZFHX3, encoding a key player in neuronal development, causes syndromic intellectual disability
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Agrawal, Pankaj, Armstrong Scott, Daryl, Barkoudah, Elizabeth, Bellini, Melissa, Beneteau, Claire, Bjørgo, Kathrine, Brooks, Alice, Brown, Natasha, Castle, Alison, Castro, Diana, Chorin, Odelia, Cleghorn, Mark, Clement, Emma, Coman, David, Costin, Carrie, Devriendt, Koen, Dong, Dexin, Dries, Annika, Duelund Hjortshøj, Tina, Dyment, David, Eng, Christine, Genetti, Casie, Grano, Siera, Henneman, Peter, Heron, Delphine, Hoffmann, Katrin, Hom, Jason, Du, Haowei, Iascone, Maria, Isidor, Bertrand, Järvelä, Irma E., Jones, Julie, Keren, Boris, Koenig, Mary Kay, Kohlhase, Jürgen, Lalani, Seema, Le Caignec, Cedric, Lewis, Andi, Liu, Pengfei, Lovgren, Alysia, Lupski, James R., Lyons, Mike, Lysy, Philippe, Manning, Melanie, Marcelis, Carlo, McLean, Scott Douglas, Mercie, Sandra, Mertens, Mareike, Molin, Arnaud, Nizon, Mathilde, Nugent, Kimberly Margaret, Öhman, Susanna, O'Leary, Melanie, Okashah Littlejohn, Rebecca, Petit, Florence, Pfundt, Rolph, Pottocki, Lorraine, Raas-Rotschild, Annick, Ranguin, Kara, Revencu, Nicole, Rosenfeld, Jill, Rhodes, Lindsay, Santos Simmaro, Fernando, Sals, Karen, Schieving, Jolanda, Schrauwen, Isabelle, Schuurs-Hoeijmakers, Janneke H.M., Seaby, Eleanor G., Sheffer, Ruth, Snijders Blok, Lot, Sørensen, Kristina P., Srivastava, Siddharth, Stark, Zornitza, Stoeva, Radka, Stutterd, Chloe, Tan, Natalie B., Mathiesen Torring, Pernille, Vanakker, Olivier, van der Laan, Liselot, Ververi, Athina, Villavicencio-Lorini, Pablo, Vincent, Marie, Wand, Dorothea, Wessels, Marja, White, Sue, Wojcik, Monica H., Wu, Nan, Zhao, Sen, Pérez Baca, María del Rocío, Jacobs, Eva Z., Vantomme, Lies, Leblanc, Pontus, Bogaert, Elke, Dheedene, Annelies, De Cock, Laurenz, Haghshenas, Sadegheh, Foroutan, Aidin, Levy, Michael A., Kerkhof, Jennifer, McConkey, Haley, Chen, Chun-An, Batzir, Nurit Assia, Wang, Xia, Palomares, María, Carels, Marieke, Dermaut, Bart, Sadikovic, Bekim, Menten, Björn, Yuan, Bo, Vergult, Sarah, and Callewaert, Bert
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- 2024
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7. Beyond the exome: What’s next in diagnostic testing for Mendelian conditions
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Abouhala, Siwaar, Albert, Jessica, Almalvez, Miguel, Alvarez, Raquel, Amin, Mutaz, Anderson, Peter, Aradhya, Swaroop, Ashley, Euan, Assimes, Themistocles, Auriga, Light, Austin-Tse, Christina, Bamshad, Mike, Barseghyan, Hayk, Baxter, Samantha, Behera, Sairam, Beheshti, Shaghayegh, Bejerano, Gill, Berger, Seth, Bernstein, Jon, Best, Sabrina, Blankenmeister, Benjamin, Blue, Elizabeth, Boerwinkle, Eric, Bonkowski, Emily, Bonner, Devon, Boone, Philip, Bornhorst, Miriam, Bozkurt-Yozgatli, Tugce, Brand, Harrison, Buckingham, Kati, Calame, Daniel, Casadei, Silvia, Chadwick, Lisa, Chavez, Clarisa, Chen, Ziwei, Chinn, Ivan, Chong, Jessica, Coban-Akdemir, Zeynep, Cohen, Andrea J., Conner, Sarah, Conomos, Matthew, Coveler, Karen, Cui, Ya Allen, Currin, Sara, Daber, Robert, Dardas, Zain, Davis, Colleen, Dawood, Moez, de Dios, Ivan, de Esch, Celine, Delaney, Meghan, Délot, Emmanuèle, DiTroia, Stephanie, Doddapaneni, Harsha, Du, Haowei, Duan, Ruizhi, Dugan-Perez, Shannon, Duong, Nhat, Duyzend, Michael, Eichler, Evan, Emami, Sara, Fatih, Jawid, Fraser, Jamie, Fusaro, Vincent, Galey, Miranda, Ganesh, Vijay, Garimella, Kiran, Gibbs, Richard, Gifford, Casey, Ginsburg, Amy, Goddard, Pagé, Gogarten, Stephanie, Gogate, Nikhita, Gordon, William, Gorzynski, John E., Greenleaf, William, Grochowski, Christopher, Groopman, Emily, Guarischi Sousa, Rodrigo, Gudmundsson, Sanna, Gulati, Ashima, Guo, Daniel, Hale, Walker, Hall, Stacey, Harvey, William, Hawley, Megan, Heavner, Ben, Herman, Isabella, Horike-Pyne, Martha, Hu, Jianhong, Huang, Yongqing, Hwang, James, Jarvik, Gail, Jensen, Tanner, Jhangiani, Shalini, Jimenez-Morales, David, Jin, Christopher, Saad, Ahmed K., Kahn-Kirby, Amanda, Kain, Jessica, Kaur, Parneet, Keehan, Laura, Knoblach, Susan, Ko, Arthur, Kohler, Jennefer, Kundaje, Anshul, Kundu, Soumya, Lancaster, Samuel M., Larsson, Katie, Lemire, Gabrielle, Lewis, Richard, Li, Wei, Li, Yidan, Liu, Pengfei, LoTempio, Jonathan, Lupski, James, Ma, Jialan, MacArthur, Daniel, Mahmoud, Medhat, Malani, Nirav, Mangilog, Brian, Marafi, Dana, Marmolejos, Sofia, Marten, Daniel, Martinez, Eva, Marvin, Colby, Marwaha, Shruti, Kumara Mastrorosa, Francesco, Matalon, Dena, May, Susanne, McGee, Sean, Meador, Lauren, Mefford, Heather, Rodrigo Mendez, Hector, Miller, Alexander, Miller, Danny E., Mitani, Tadahiro, Montgomery, Stephen, Moussa, Hala Mohamed, Moyses, Mariana, Munderloh, Chloe, Muzny, Donna, Nelson, Sarah, Neu, Matthew B., Nguyen, Jonathan, Nguyen, Thuy-mi P., Nussbaum, Robert, Nykamp, Keith, O'Callaghan, William, O'Heir, Emily, O'Leary, Melanie, Olsen, Jeren, Osei-Owusu, Ikeoluwa, O'Donnell-Luria, Anne, Padhi, Evin, Pais, Lynn, Pan, Miao, Panchal, Piyush, Patterson, Karynne, Payne, Sheryl, Pehlivan, Davut, Petrowski, Paul, Pham, Alicia, Pitsava, Georgia, Podesta, Astaria, Ponce, Sarah, Posey, Jennifer, Prosser, Jaime, Quertermous, Thomas, Rai, Archana, Ramani, Arun, Rehm, Heidi, Reuter, Chloe, Reuter, Jason, Richardson, Matthew, Rivera-Munoz, Andres, Rubio, Oriane, Sabo, Aniko, Salani, Monica, Samocha, Kaitlin, Sanchis-Juan, Alba, Savage, Sarah, Scott, Stuart, Scott, Evette, Sedlazeck, Fritz, Shah, Gulalai, Shojaie, Ali, Singh, Mugdha, Smith, Josh, Smith, Kevin, Snow, Hana, Snyder, Michael, Socarras, Kayla, Starita, Lea, Stark, Brigitte, Stenton, Sarah, Stergachis, Andrew, Stilp, Adrienne, Sundaram, Laksshman, Sutton, V. Reid, Tai, Jui-Cheng, Talkowski, Michael, Tise, Christina, Tong, Catherine, Tsao, Philip, Ungar, Rachel, VanNoy, Grace, Vilain, Eric, Voutos, Isabella, Walker, Kim, Weisburd, Ben, Weiss, Jeff, Wellington, Chris, Weng, Ziming, Westheimer, Emily, Wheeler, Marsha, Wheeler, Matthew, Wiel, Laurens, Wilson, Michael, Wojcik, Monica, Wong, Quenna, Wong, Issac, Xiao, Changrui, Yadav, Rachita, Yi, Qian, Yuan, Bo, Zhao, Jianhua, Zhen, Jimmy, Zhou, Harry, Wojcik, Monica H., Reuter, Chloe M., Duyzend, Michael H., Boone, Philip M., Groopman, Emily E., Délot, Emmanuèle C., Jain, Deepti, Starita, Lea M., Montgomery, Stephen B., Bamshad, Michael J., Chong, Jessica X., Wheeler, Matthew T., Berger, Seth I., and Sedlazeck, Fritz J.
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- 2023
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8. Monoallelic variation in DHX9, the gene encoding the DExH-box helicase DHX9, underlies neurodevelopment disorders and Charcot-Marie-Tooth disease
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Calame, Daniel G., Guo, Tianyu, Wang, Chen, Garrett, Lillian, Jolly, Angad, Dawood, Moez, Kurolap, Alina, Henig, Noa Zunz, Fatih, Jawid M., Herman, Isabella, Du, Haowei, Mitani, Tadahiro, Becker, Lore, Rathkolb, Birgit, Gerlini, Raffaele, Seisenberger, Claudia, Marschall, Susan, Hunter, Jill V., Gerard, Amanda, Heidlebaugh, Alexis, Challman, Thomas, Spillmann, Rebecca C., Jhangiani, Shalini N., Coban-Akdemir, Zeynep, Lalani, Seema, Liu, Lingxiao, Revah-Politi, Anya, Iglesias, Alejandro, Guzman, Edwin, Baugh, Evan, Boddaert, Nathalie, Rondeau, Sophie, Ormieres, Clothide, Barcia, Giulia, Tan, Queenie K.G., Thiffault, Isabelle, Pastinen, Tomi, Sheikh, Kazim, Biliciler, Suur, Mei, Davide, Melani, Federico, Shashi, Vandana, Yaron, Yuval, Steele, Mary, Wakeling, Emma, Østergaard, Elsebet, Nazaryan-Petersen, Lusine, Millan, Francisca, Santiago-Sim, Teresa, Thevenon, Julien, Bruel, Ange-Line, Thauvin-Robinet, Christel, Popp, Denny, Platzer, Konrad, Gawlinski, Pawel, Wiszniewski, Wojciech, Marafi, Dana, Pehlivan, Davut, Posey, Jennifer E., Gibbs, Richard A., Gailus-Durner, Valerie, Guerrini, Renzo, Fuchs, Helmut, Hrabě de Angelis, Martin, Hölter, Sabine M., Cheung, Hoi-Hung, Gu, Shen, and Lupski, James R.
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- 2023
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9. Rare variant enrichment analysis supports GREB1L as a contributory driver gene in the etiology of Mayer-Rokitansky-Küster-Hauser syndrome
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Jolly, Angad, Du, Haowei, Borel, Christelle, Chen, Na, Zhao, Sen, Grochowski, Christopher M., Duan, Ruizhi, Fatih, Jawid M., Dawood, Moez, Salvi, Sejal, Jhangiani, Shalini N., Muzny, Donna M., Koch, André, Rouskas, Konstantinos, Glentis, Stavros, Deligeoroglou, Efthymios, Bacopoulou, Flora, Wise, Carol A., Dietrich, Jennifer E., Van den Veyver, Ignatia B., Dimas, Antigone S., Brucker, Sara, Sutton, V. Reid, Gibbs, Richard A., Antonarakis, Stylianos E., Wu, Nan, Coban-Akdemir, Zeynep H., Zhu, Lan, Posey, Jennifer E., and Lupski, James R.
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- 2023
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10. The multiple de novo copy number variant (MdnCNV) phenomenon presents with peri-zygotic DNA mutational signatures and multilocus pathogenic variation
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Du, Haowei, Jolly, Angad, Grochowski, Christopher M., Yuan, Bo, Dawood, Moez, Jhangiani, Shalini N., Li, He, Muzny, Donna, Fatih, Jawid M., Coban-Akdemir, Zeynep, Carlin, Mary Esther, Scheuerle, Angela E., Witzl, Karin, Posey, Jennifer E., Pendleton, Matthew, Harrington, Eoghan, Juul, Sissel, Hastings, P. J., Bi, Weimin, Gibbs, Richard A., Sedlazeck, Fritz J., Lupski, James R., Carvalho, Claudia M. B., and Liu, Pengfei
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- 2022
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11. Biallelic loss-of-function variants in the splicing regulator NSRP1 cause a severe neurodevelopmental disorder with spastic cerebral palsy and epilepsy
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Calame, Daniel G., Bakhtiari, Somayeh, Logan, Rachel, Coban-Akdemir, Zeynep, Du, Haowei, Mitani, Tadahiro, Fatih, Jawid M., Hunter, Jill V., Herman, Isabella, Pehlivan, Davut, Jhangiani, Shalini N., Person, Richard, Schnur, Rhonda E., Jin, Sheng Chih, Bilguvar, Kaya, Posey, Jennifer E., Koh, Sookyong, Firouzabadi, Saghar G., Alehabib, Elham, Tafakhori, Abbas, Esmkhani, Sahra, Gibbs, Richard A., Noureldeen, Mahmoud M., Zaki, Maha S., Marafi, Dana, Darvish, Hossein, Kruer, Michael C., and Lupski, James R.
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- 2021
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12. High prevalence of multilocus pathogenic variation in neurodevelopmental disorders in the Turkish population
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Mitani, Tadahiro, Isikay, Sedat, Gezdirici, Alper, Gulec, Elif Yilmaz, Punetha, Jaya, Fatih, Jawid M., Herman, Isabella, Akay, Gulsen, Du, Haowei, Calame, Daniel G., Ayaz, Akif, Tos, Tulay, Yesil, Gozde, Aydin, Hatip, Geckinli, Bilgen, Elcioglu, Nursel, Candan, Sukru, Sezer, Ozlem, Erdem, Haktan Bagis, Gul, Davut, Demiral, Emine, Elmas, Muhsin, Yesilbas, Osman, Kilic, Betul, Gungor, Serdal, Ceylan, Ahmet C., Bozdogan, Sevcan, Ozalp, Ozge, Cicek, Salih, Aslan, Huseyin, Yalcintepe, Sinem, Topcu, Vehap, Bayram, Yavuz, Grochowski, Christopher M., Jolly, Angad, Dawood, Moez, Duan, Ruizhi, Jhangiani, Shalini N., Doddapaneni, Harsha, Hu, Jianhong, Muzny, Donna M., Marafi, Dana, Akdemir, Zeynep Coban, Karaca, Ender, Carvalho, Claudia M.B., Gibbs, Richard A., Posey, Jennifer E., Lupski, James R., and Pehlivan, Davut
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- 2021
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13. Breast tumours maintain a reservoir of subclonal diversity during expansion
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Minussi, Darlan C., Nicholson, Michael D., Ye, Hanghui, Davis, Alexander, Wang, Kaile, Baker, Toby, Tarabichi, Maxime, Sei, Emi, Du, Haowei, Rabbani, Mashiat, Peng, Cheng, Hu, Min, Bai, Shanshan, Lin, Yu-wei, Schalck, Aislyn, Multani, Asha, Ma, Jin, McDonald, Thomas O., Casasent, Anna, Barrera, Angelica, Chen, Hui, Lim, Bora, Arun, Banu, Meric-Bernstam, Funda, Van Loo, Peter, Michor, Franziska, and Navin, Nicholas E.
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- 2021
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14. Health literacy in patients with gout: A latent profile analysis.
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Cai, Shuo, Hu, Danqing, Wang, Derong, Zhao, Jianchun, Du, Haowei, Wang, Aimin, and Song, Yuting
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HEALTH literacy ,GOUT ,MEDICAL personnel ,DISEASE duration ,BONFERRONI correction ,AGE groups ,DEMOGRAPHIC characteristics - Abstract
Objectives: Understanding the health literacy status of patients with gout diagnosis is essential for improving the health of this population. Our study aimed to investigate the latent profiles of health literacy in patients with gout and to analyze differences in characteristics across potential profiles. Methods: This was a cross-sectional study. Eligible participants attended the Shandong Gout Medical Center, from March 2023 to May 2023 and self-reported gout diagnosis. We used the Health Literacy Scale for Patients with Gout designed and validated by our team. The scale had good reliability and validity among patients with gout. 243 patients completed the Demographic Information Questionnaire and the Health Literacy Scale for Patients with Gout. We used latent profile analysis to identify the latent profiles of gout patients' health literacy. We used Chi-square tests with Bonferroni correction to analyze differences in demographics and illness characteristics across identified profiles. Results: Three profiles of patients with gout emerged (prevalence): the low literacy-low critical group (21.81%), the moderate literacy group (42.79%), and the high literacy-stable group (35.39%). The three groups differed in age, education level, monthly income, disease duration, and place of residence (P<0.01). Conclusions: The health literacy of patients with gout was heterogeneous. Healthcare professionals should adopt targeted interventions based on the characteristics of each latent health literacy profile to improve the health literacy level of patients with gout. [ABSTRACT FROM AUTHOR]
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- 2024
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15. De novo variants in H3-3A and H3-3B are associated with neurodevelopmental delay, dysmorphic features, and structural brain abnormalities
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Okur, Volkan, Chen, Zefu, Vossaert, Liesbeth, Peacock, Sandra, Rosenfeld, Jill, Zhao, Lina, Du, Haowei, Calamaro, Emily, Gerard, Amanda, Zhao, Sen, Kelsay, Jill, Lahr, Ashley, Mighton, Chloe, Porter, Hillary M., Siemon, Amy, Silver, Josh, Svihovec, Shayna, Fong, Chin-To, Grant, Christina L., Lerner-Ellis, Jordan, Manickam, Kandamurugu, Madan-Khetarpal, Suneeta, McCandless, Shawn E., Morel, Chantal F., Schaefer, G. Bradley, Berry-Kravis, Elizabeth M., Gates, Ryan, Gomez-Ospina, Natalia, Qiu, Guixing, Zhang, Terry Jianguo, Wu, Zhihong, Meng, Linyan, Liu, Pengfei, Scott, Daryl A., Lupski, James R., Eng, Christine M., Wu, Nan, and Yuan, Bo
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- 2021
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16. P634: Exonic SVs driven by Alu/Alu-mediated genomic rearrangements contribute on a large scale to alleles underlying human Mendelian rare disease traits
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Duan, Ruizhi, Du, Haowei, Dardas, Zain, and Lupski, James
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- 2024
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17. Integrated sequencing and array comparative genomic hybridization in familial Parkinson disease
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Robak, Laurie A., Du, Renqian, Yuan, Bo, Gu, Shen, Alfradique-Dunham, Isabel, Kondapalli, Vismaya, Hinojosa, Evelyn, Stillwell, Amanda, Young, Emily, Zhang, Chaofan, Song, Xiaofei, Du, Haowei, Gambin, Tomasz, Jhangiani, Shalini N., Coban Akdemir, Zeynep, Muzny, Donna M., Tejomurtula, Anusha, Ross, Owen A., Shaw, Chad, Jankovic, Joseph, Bi, Weimin, Posey, Jennifer E., Lupski, James R., and Shulman, Joshua M.
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- 2020
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18. Biallelic missense variants in COG3 cause a congenital disorder of glycosylation with impairment of retrograde vesicular trafficking.
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Duan, Ruizhi, Marafi, Dana, Xia, Zhi‐Jie, Ng, Bobby G., Maroofian, Reza, Sumya, Farhana Taher, Saad, Ahmed K., Du, Haowei, Fatih, Jawid M., Hunter, Jill V., Elbendary, Hasnaa M., Baig, Shahid M., Abdullah, Uzma, Ali, Zafar, Efthymiou, Stephanie, Murphy, David, Mitani, Tadahiro, Withers, Marjorie A., Jhangiani, Shalini N., and Coban‐Akdemir, Zeynep
- Abstract
Biallelic variants in genes for seven out of eight subunits of the conserved oligomeric Golgi complex (COG) are known to cause recessive congenital disorders of glycosylation (CDG) with variable clinical manifestations. COG3 encodes a constituent subunit of the COG complex that has not been associated with disease traits in humans. Herein, we report two COG3 homozygous missense variants in four individuals from two unrelated consanguineous families that co‐segregated with COG3–CDG presentations. Clinical phenotypes of affected individuals include global developmental delay, severe intellectual disability, microcephaly, epilepsy, facial dysmorphism, and variable neurological findings. Biochemical analysis of serum transferrin from one family showed the loss of a single sialic acid. Western blotting on patient‐derived fibroblasts revealed reduced COG3 and COG4. Further experiments showed delayed retrograde vesicular recycling in patient cells. This report adds to the knowledge of the COG–CDG network by providing collective evidence for a COG3–CDG rare disease trait and implicating a likely pathology of the disorder as the perturbation of Golgi trafficking. [ABSTRACT FROM AUTHOR]
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- 2023
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19. Hourly operation strategy of a CCHP system with GSHP and thermal energy storage (TES) under variable loads: A case study
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Liu, Wei, Chen, Guanyi, Yan, Beibei, Zhou, Zhihua, Du, Haowei, and Zuo, Jian
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- 2015
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20. Knowledge-enhanced Iterative Instruction Generation and Reasoning for Knowledge Base Question Answering
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Du, Haowei, Huang, Quzhe, Zhang, Chen, and Zhao, Dongyan
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FOS: Computer and information sciences ,Computer Science - Computation and Language ,Computation and Language (cs.CL) - Abstract
Multi-hop Knowledge Base Question Answering(KBQA) aims to find the answer entity in a knowledge base which is several hops from the topic entity mentioned in the question. Existing Retrieval-based approaches first generate instructions from the question and then use them to guide the multi-hop reasoning on the knowledge graph. As the instructions are fixed during the whole reasoning procedure and the knowledge graph is not considered in instruction generation, the model cannot revise its mistake once it predicts an intermediate entity incorrectly. To handle this, we propose KBIGER(Knowledge Base Iterative Instruction GEnerating and Reasoning), a novel and efficient approach to generate the instructions dynamically with the help of reasoning graph. Instead of generating all the instructions before reasoning, we take the (k-1)-th reasoning graph into consideration to build the k-th instruction. In this way, the model could check the prediction from the graph and generate new instructions to revise the incorrect prediction of intermediate entities. We do experiments on two multi-hop KBQA benchmarks and outperform the existing approaches, becoming the new-state-of-the-art. Further experiments show our method does detect the incorrect prediction of intermediate entities and has the ability to revise such errors., Accepted by NLPCC 2022(oral)
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- 2022
21. A biallelic frameshift indel in PPP1R35 as a cause of primary microcephaly.
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Dawood, Moez, Akay, Gulsen, Mitani, Tadahiro, Marafi, Dana, Fatih, Jawid M., Gezdirici, Alper, Najmabadi, Hossein, Kahrizi, Kimia, Punetha, Jaya, Grochowski, Christopher M., Du, Haowei, Jolly, Angad, Li, He, Coban‐Akdemir, Zeynep, Sedlazeck, Fritz J., Hunter, Jill V., Jhangiani, Shalini N., Muzny, Donna, Pehlivan, Davut, and Posey, Jennifer E.
- Abstract
Protein phosphatase 1 regulatory subunit 35 (PPP1R35) encodes a centrosomal protein required for recruiting microtubule‐binding elongation machinery. Several proteins in this centriole biogenesis pathway correspond to established primary microcephaly (MCPH) genes, and multiple model organism studies hypothesize PPP1R35 as a candidate MCPH gene. Here, using exome sequencing (ES) and family‐based rare variant analyses, we report a homozygous, frameshifting indel deleting the canonical stop codon in the last exon of PPP1R35 [Chr7: c.753_*3delGGAAGCGTAGACCinsCG (p.Trp251Cysfs*22)]; the variant allele maps in a 3.7 Mb block of absence of heterozygosity (AOH) in a proband with severe MCPH (−4.3 SD at birth, −6.1 SD by 42 months), pachygyria, and global developmental delay from a consanguineous Turkish kindred. Droplet digital PCR (ddPCR) confirmed mutant mRNA expression in fibroblasts. In silico prediction of the translation of mutant PPP1R35 is expected to be elongated by 18 amino acids before encountering a downstream stop codon. This complex indel allele is absent in public databases (ClinVar, gnomAD, ARIC, 1000 genomes) and our in‐house database of 14,000+ exomes including 1800+ Turkish exomes supporting predicted pathogenicity. Comprehensive literature searches for PPP1R35 variants yielded two probands affected with severe microcephaly (−15 SD and −12 SD) with the same homozygous indel from a single, consanguineous, Iranian family from a cohort of 404 predominantly Iranian families. The lack of heterozygous cases in two large cohorts representative of the genetic background of these two families decreased our suspicion of a founder allele and supports the contention of a recurrent mutation. We propose two potential secondary structure mutagenesis models for the origin of this variant allele mediated by hairpin formation between complementary GC rich segments flanking the stop codon via secondary structure mutagenesis. [ABSTRACT FROM AUTHOR]
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- 2023
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22. Biallelic Variants in the Ectonucleotidase ENTPD1 Cause a Complex Neurodevelopmental Disorder with Intellectual Disability, Distinct White Matter Abnormalities, and Spastic Paraplegia.
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Calame, Daniel G., Herman, Isabella, Maroofian, Reza, Marshall, Aren E., Donis, Karina Carvalho, Fatih, Jawid M., Mitani, Tadahiro, Du, Haowei, Grochowski, Christopher M., Sousa, Sergio B., Gijavanekar, Charul, Bakhtiari, Somayeh, Ito, Yoko A., Rocca, Clarissa, Hunter, Jill V., Sutton, V. Reid, Emrick, Lisa T., Boycott, Kym M., Lossos, Alexander, and Fellig, Yakov
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WHITE matter (Nerve tissue) ,INTELLECTUAL disabilities ,FAMILIAL spastic paraplegia ,PARAPLEGIA ,HEREDITY ,NEUROLOGICAL disorders ,DYSARTHRIA - Abstract
Objective: Human genomics established that pathogenic variation in diverse genes can underlie a single disorder. For example, hereditary spastic paraplegia is associated with >80 genes, with frequently only few affected individuals described for each gene. Herein, we characterize a large cohort of individuals with biallelic variation in ENTPD1, a gene previously linked to spastic paraplegia 64 (Mendelian Inheritance in Man # 615683). Methods: Individuals with biallelic ENTPD1 variants were recruited worldwide. Deep phenotyping and molecular characterization were performed. Results: A total of 27 individuals from 17 unrelated families were studied; additional phenotypic information was collected from published cases. Twelve novel pathogenic ENTPD1 variants are described (NM 001776.6): c.398_399delinsAA; p.(Gly133Glu), c.540del; p.(Thr181Leufs*18), c.640del; p.(Gly216Glufs*75), c.185 T > G; p.(Leu62*), c.1531 T > C; p.(*511Glnext*100), c.967C > T; p.(Gln323*), c.414‐2_414‐1del, and c.146 A > G; p.(Tyr49Cys) including 4 recurrent variants c.1109 T > A; p.(Leu370*), c.574‐6_574‐3del, c.770_771del; p.(Gly257Glufs*18), and c.1041del; p.(Ile348Phefs*19). Shared disease traits include childhood onset, progressive spastic paraplegia, intellectual disability (ID), dysarthria, and white matter abnormalities. In vitro assays demonstrate that ENTPD1 expression and function are impaired and that c.574‐6_574‐3del causes exon skipping. Global metabolomics demonstrate ENTPD1 deficiency leads to impaired nucleotide, lipid, and energy metabolism. Interpretation: The ENTPD1 locus trait consists of childhood disease onset, ID, progressive spastic paraparesis, dysarthria, dysmorphisms, and white matter abnormalities, with some individuals showing neurocognitive regression. Investigation of an allelic series of ENTPD1 (1) expands previously described features of ENTPD1‐related neurological disease, (2) highlights the importance of genotype‐driven deep phenotyping, (3) documents the need for global collaborative efforts to characterize rare autosomal recessive disease traits, and (4) provides insights into disease trait neurobiology. ANN NEUROL 2022;92:304–321 [ABSTRACT FROM AUTHOR]
- Published
- 2022
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23. Phenotypic and mutational spectrum of ROR2‐related Robinow syndrome.
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Lima, Ariadne R., Ferreira, Barbara M., Zhang, Chaofan, Jolly, Angad, Du, Haowei, White, Janson J., Dawood, Moez, Lins, Tulio C., Chiabai, Marcela A., van Beusekom, Ellen, Cordoba, Mara S., Caldas Rosa, Erica C.C., Kayserili, Hulya, Kimonis, Virginia, Wu, Erica, Mellado, Cecilia, Aggarwal, Vineet, Richieri‐Costa, Antonio, Brunoni, Décio, and Canó, Talyta M.
- Abstract
Robinow syndrome is characterized by a triad of craniofacial dysmorphisms, disproportionate‐limb short stature, and genital hypoplasia. A significant degree of phenotypic variability seems to correlate with different genes/loci. Disturbances of the noncanonical WNT‐pathway have been identified as the main cause of the syndrome. Biallelic variants in ROR2 cause an autosomal recessive form of the syndrome with distinctive skeletal findings. Twenty‐two patients with a clinical diagnosis of autosomal recessive Robinow syndrome were screened for variants in ROR2 using multiple molecular approaches. We identified 25 putatively pathogenic ROR2 variants, 16 novel, including single nucleotide variants and exonic deletions. Detailed phenotypic analyses revealed that all subjects presented with a prominent forehead, hypertelorism, short nose, abnormality of the nasal tip, brachydactyly, mesomelic limb shortening, short stature, and genital hypoplasia in male patients. A total of 19 clinical features were present in more than 75% of the subjects, thus pointing to an overall uniformity of the phenotype. Disease‐causing variants in ROR2, contribute to a clinically recognizable autosomal recessive trait phenotype with multiple skeletal defects. A comprehensive quantitative clinical evaluation of this cohort delineated the phenotypic spectrum of ROR2‐related Robinow syndrome. The identification of exonic deletion variant alleles further supports the contention of a loss‐of‐function mechanism in the etiology of the syndrome. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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24. Novel RETREG1 (FAM134B) founder allele is linked to HSAN2B and renal disease in a Turkish family.
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Taşdelen, Elifcan, Calame, Daniel G., Akay, Gulsen, Mitani, Tadahiro, Fatih, Jawid M., Herman, Isabella, Du, Haowei, Coban‐Akdemir, Zeynep, Marafi, Dana, Jhangiani, Shalini N., Posey, Jennifer E., Gibbs, Richard A., Altıparmak, Taylan, Kutlay, Nüket Yürür, Lupski, James R., and Pehlivan, Davut
- Abstract
Hereditary sensory and autonomic neuropathy type 2B (HSAN2B) is a rare autosomal recessive peripheral neuropathy caused by biallelic variants in RETREG1 (formerly FAM134B). HSAN2B is characterized by sensory impairment resulting in skin ulcerations, amputations, and osteomyelitis as well as variable weakness, spasticity, and autonomic dysfunction. Here, we report four affected individuals with recurrent osteomyelitis, ulceration, and amputation of hands and feet, sensory neuropathy, hyperhidrosis, urinary incontinence, and renal failure from a family without any known shared parental ancestry. Due to the history of chronic recurrent multifocal osteomyelitis and microcytic anemia, a diagnosis of Majeed syndrome was considered; however, sequencing of LPIN2 was negative. Family‐based exome sequencing (ES) revealed a novel homozygous ultrarare RETREG1 variant NM_001034850.2:c.321G>A;p.Trp107Ter. Electrophysiological studies of the proband demonstrated axonal sensorimotor neuropathy predominantly in the lower extremities. Consistent with the lack of shared ancestry, the coefficient of inbreeding calculated from ES data was low (F = 0.002), but absence of heterozygosity (AOH) analysis demonstrated a 7.2 Mb AOH block surrounding the variant consistent with a founder allele. Two of the four affected individuals had unexplained renal failure which has not been reported in HSAN2B cases to date. Therefore, this report describes a novel RETREG1 founder allele and suggests renal failure may be an unrecognized feature of the RETREG1‐disease spectrum. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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25. Quantitative dissection of multilocus pathogenic variation in an Egyptian infant with severe neurodevelopmental disorder resulting from multiple molecular diagnoses.
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Herman, Isabella, Jolly, Angad, Du, Haowei, Dawood, Moez, Abdel‐Salam, Ghada M. H., Marafi, Dana, Mitani, Tadahiro, Calame, Daniel G., Coban‐Akdemir, Zeynep, Fatih, Jawid M., Hegazy, Ibrahim, Jhangiani, Shalini N., Gibbs, Richard A., Pehlivan, Davut, Posey, Jennifer E., and Lupski, James R.
- Abstract
Genomic sequencing and clinical genomics have demonstrated that substantial subsets of atypical and/or severe disease presentations result from multilocus pathogenic variation (MPV) causing blended phenotypes. In an infant with a severe neurodevelopmental disorder, four distinct molecular diagnoses were found by exome sequencing (ES). The blended phenotype that includes brain malformation, dysmorphism, and hypotonia was dissected using the Human Phenotype Ontology (HPO). ES revealed variants in CAPN3 (c.259C > G:p.L87V), MUSK (c.1781C > T:p.A594V), NAV2 (c.1996G > A:p.G666R), and ZC4H2 (c.595A > C:p.N199H). CAPN3, MUSK, and ZC4H2 are established disease genes linked to limb‐girdle muscular dystrophy (OMIM# 253600), congenital myasthenia (OMIM# 616325), and Wieacker–Wolff syndrome (WWS; OMIM# 314580), respectively. NAV2 is a retinoic‐acid responsive novel disease gene candidate with biological roles in neurite outgrowth and cerebellar dysgenesis in mouse models. Using semantic similarity, we show that no gene identified by ES individually explains the proband phenotype, but rather the totality of the clinically observed disease is explained by the combination of disease‐contributing effects of the identified genes. These data reveal that multilocus pathogenic variation can result in a blended phenotype with each gene affecting a different part of the nervous system and nervous system‐muscle connection. We provide evidence from this n = 1 study that in patients with MPV and complex blended phenotypes resulting from multiple molecular diagnoses, quantitative HPO analysis can allow for dissection of phenotypic contribution of both established disease genes and novel disease gene candidates not yet proven to cause human disease. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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26. Expanding the phenotypic and allelic spectrum of SMG8: Clinical observations reveal overlap with SMG9‐associated disease trait.
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Abdel‐Salam, Ghada M. H., Duan, Ruizhi, Abdel‐Hamid, Mohamed S., Sayed, Inas S. M., Jhangiani, Shalini N., Khan, Ziad, Du, Haowei, Gibbs, Richard A., Posey, Jennifer E., Marafi, Dana, and Lupski, James R.
- Abstract
SMG8 (MIM *617315) is a regulatory subunit involved in nonsense‐mediated mRNA decay (NMD), a cellular protective pathway that regulates mRNA transcription, transcript stability, and degrades transcripts containing premature stop codons. SMG8 binds SMG9 and SMG1 to form the SMG1C complex and inhibit the kinase activity of SMG1. Biallelic deleterious variants in SMG9 are known to cause a heart and brain malformation syndrome (HBMS; MIM #616920), whereas biallelic deleterious variants in SMG8 were recently described to cause a novel neurodevelopmental disorder (NDD) with dysmorphic facies and cataracts, now defined as Alzahrani–Kuwahara syndrome (ALKUS: MIM #619268). Only eight subjects from four families with ALKUS have been described to date. Through research reanalysis of a nondiagnostic clinical exome, we identified a subject from a fifth unrelated family with a homozygous deleterious variant in SMG8 and features consistent with ALKUS. Interestingly, the subject also had unilateral microphthalmia, a clinical feature that has been described in SMG9‐related disorder. Our study expands the phenotypic spectrum of SMG8‐related disorder, demonstrates an overlapping phenotype between SMG8‐ and SMG9‐related rare disease traits, provides further evidence for the SMG8 and SMG9 protein interactions, and highlights the importance of revisiting nondiagnostic exome data to identify and affirm emerging novel genes for rare disease traits. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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27. Deep clinicopathological phenotyping identifies a previously unrecognized pathogenic EMD splice variant.
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Calame, Daniel G., Fatih, Jawid M., Herman, Isabella, Coban‐Akdemir, Zeynep, Du, Haowei, Mitani, Tadahiro, Jhangiani, Shalini N., Marafi, Dana, Gibbs, Richard A., Posey, Jennifer E., Mehta, Vidya P., Mohila, Carrie A., Abid, Farida, Lotze, Timothy E., Pehlivan, Davut, Adesina, Adekunle M., and Lupski, James R.
- Subjects
MUSCULAR dystrophy ,RARE diseases ,PHENOTYPES ,FACIOSCAPULOHUMERAL muscular dystrophy ,MOLECULAR diagnosis ,MUSCLE proteins - Abstract
Exome sequencing (ES) has revolutionized rare disease management, yet only ~25%–30% of patients receive a molecular diagnosis. A limiting factor is the quality of available phenotypic data. Here, we describe how deep clinicopathological phenotyping yielded a molecular diagnosis for a 19‐year‐old proband with muscular dystrophy and negative clinical ES. Deep phenotypic analysis identified two critical data points: (1) the absence of emerin protein in muscle biopsy and (2) clinical features consistent with Emery‐Dreifuss muscular dystrophy. Sequencing data analysis uncovered an ultra‐rare, intronic variant in EMD, the gene encoding emerin. The variant, NM_000117.3: c.188‐6A > G, is predicted to impact splicing by in silico tools. This case thus illustrates how better integration of clinicopathologic data into ES analysis can enhance diagnostic yield with implications for clinical practice. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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28. Chromoanagenesis Event Underlies a de novo Pericentric and Multiple Paracentric Inversions in a Single Chromosome Causing Coffin–Siris Syndrome.
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Grochowski, Christopher M., Krepischi, Ana C. V., Eisfeldt, Jesper, Du, Haowei, Bertola, Debora R., Oliveira, Danyllo, Costa, Silvia S., Lupski, James R., Lindstrand, Anna, and Carvalho, Claudia M. B.
- Subjects
CHROMOSOMAL rearrangement ,SOIL structure ,PHENOTYPES ,NUCLEOTIDE sequencing ,CHROMOSOMES ,CHROMOSOME inversions - Abstract
Chromoanagenesis is a descriptive term that encompasses classes of catastrophic mutagenic processes that generate localized and complex chromosome rearrangements in both somatic and germline genomes. Herein, we describe a 5-year-old female presenting with a constellation of clinical features consistent with a clinical diagnosis of Coffin–Siris syndrome 1 (CSS1). Initial G-banded karyotyping detected a 90-Mb pericentric and a 47-Mb paracentric inversion on a single chromosome. Subsequent analysis of short-read whole-genome sequencing data and genomic optical mapping revealed additional inversions, all clustered on chromosome 6, one of them disrupting ARID1B for which haploinsufficiency leads to the CSS1 disease trait (MIM:135900). The aggregate structural variant data show that the resolved, the resolved derivative chromosome architecture presents four de novo inversions, one pericentric and three paracentric, involving six breakpoint junctions in what appears to be a shuffling of genomic material on this chromosome. Each junction was resolved to nucleotide-level resolution with mutational signatures suggestive of non-homologous end joining. The disruption of the gene ARID1B is shown to occur between the fourth and fifth exon of the canonical transcript with subsequent qPCR studies confirming a decrease in ARID1B expression in the patient versus healthy controls. Deciphering the underlying genomic architecture of chromosomal rearrangements and complex structural variants may require multiple technologies and can be critical to elucidating the molecular etiology of a patient's clinical phenotype or resolving unsolved Mendelian disease cases. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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29. Risk of sudden cardiac death in EXOSC5‐related disease.
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Calame, Daniel G., Herman, Isabella, Fatih, Jawid M., Du, Haowei, Akay, Gulsen, Jhangiani, Shalini N., Coban‐Akdemir, Zeynep, Milewicz, Dianna M., Gibbs, Richard A., Posey, Jennifer E., Marafi, Dana, Hunter, Jill V., Fan, Yuxin, Lupski, James R., and Miyake, Christina Y.
- Abstract
The RNA exosome is a multi‐subunit complex involved in the processing, degradation, and regulated turnover of RNA. Several subunits are linked to Mendelian disorders, including pontocerebellar hypoplasia (EXOSC3, MIM #614678; EXOSC8, MIM #616081: and EXOSC9, MIM #618065) and short stature, hearing loss, retinitis pigmentosa, and distinctive facies (EXOSC2, MIM #617763). More recently, EXOSC5 (MIM *606492) was found to underlie an autosomal recessive neurodevelopmental disorder characterized by developmental delay, hypotonia, cerebellar abnormalities, and dysmorphic facies. An unusual feature of EXOSC5‐related disease is the occurrence of complete heart block requiring a pacemaker in a subset of affected individuals. Here, we provide a detailed clinical and molecular characterization of two siblings with microcephaly, developmental delay, cerebellar volume loss, hypomyelination, with cardiac conduction and rhythm abnormalities including sinus node dysfunction, intraventricular conduction delay, atrioventricular block, and ventricular tachycardia (VT) due to compound heterozygous variants in EXOSC5: (1) NM_020158.4:c.341C > T (p.Thr114Ile; pathogenic, previously reported) and (2) NM_020158.4:c.302C > A (p.Thr101Lys; novel variant). A review of the literature revealed an additional family with biallelic EXOSC5 variants and cardiac conduction abnormalities. These clinical and molecular data provide compelling evidence that cardiac conduction abnormalities and arrhythmias are part of the EXOSC5‐related disease spectrum and argue for proactive screening due to potential risk of sudden cardiac death. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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30. A novel homozygous SLC13A5 whole‐gene deletion generated by Alu/Alu‐mediated rearrangement in an Iraqi family with epileptic encephalopathy.
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Duan, Ruizhi, Saadi, Nebal Waill, Grochowski, Christopher M., Bhadila, Ghalia, Faridoun, Afnan, Mitani, Tadahiro, Du, Haowei, Fatih, Jawid M., Jhangiani, Shalini N., Akdemir, Zeynep C., Gibbs, Richard A., Pehlivan, Davut, Posey, Jennifer E., Marafi, Dana, and Lupski, James R.
- Abstract
Biallelic loss‐of‐function (LoF) of SLC13A5 (solute carrier family 13, member 5) induced deficiency in sodium/citrate transporter (NaCT) causes autosomal recessive developmental epileptic encephalopathy 25 with hypoplastic amelogenesis imperfecta (DEE25; MIM #615905). Many pathogenic SLC13A5 single nucleotide variants (SNVs) and small indels have been described; however, no cases with copy number variants (CNVs) have been sufficiently investigated. We describe a consanguineous Iraqi family harboring an 88.5 kb homozygous deletion including SLC13A5 in Chr17p13.1. The three affected male siblings exhibit neonatal‐onset epilepsy with fever‐sensitivity, recurrent status epilepticus, global developmental delay/intellectual disability (GDD/ID), and other variable neurological findings as shared phenotypical features of DEE25. Two of the three affected subjects exhibit hypoplastic amelogenesis imperfecta (AI), while the proband shows no evidence of dental abnormalities or AI at 2 years of age with apparently unaffected primary dentition. Characterization of the genomic architecture at this locus revealed evidence for genomic instability generated by an Alu/Alu‐mediated rearrangement; confirmed by break‐point junction Sanger sequencing. This multiplex family from a distinct population elucidates the phenotypic consequence of complete LoF of SLC13A5 and illustrates the importance of read‐depth‐based CNV detection in comprehensive exome sequencing analysis to solve cases that otherwise remain molecularly unsolved. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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31. Neurodevelopmental disorder in an Egyptian family with a biallelic ALKBH8 variant.
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Saad, Ahmed K., Maraf, Dana, Mitani, Tadahiro, Du, Haowei, Rafat, Karima, Fatih, Jawid M., Jhangiani, Shalini N., Coban-Akdemir, Zeynep, Gibbs, Richard A., Pehlivan, Davut, Hunter, Jill V., Posey, Jennifer E., Zaki, Maha S., and Lupski, James R.
- Abstract
Alkylated DNA repair protein AlkB homolog 8 (ALKBH8) is a member of the AlkB family of dioxygenases. ALKBH8 is a methyltransferase of the highly variable wobble nucleoside position in the anticodon loop of tRNA and thus plays a critical role in tRNA modification by preserving codon recognition and preventing errors in amino acid incorporation during translation. Moreover, its activity catalyzes uridine modifications that are proposed to be critical for accurate protein translation. Previously, two distinct homozygous truncating variants in the final exon of ALKBH8 were described in two unrelated large Saudi Arabian kindreds with intellectual developmental disorder and autosomal recessive 71 (MRT71) syndrome (MIM# 618504). Here, we report a third family—of Egyptian descent—harboring a novel homozygous frame‐shift variant in the last exon of ALKBH8. Two affected siblings in this family exhibit global developmental delay and intellectual disability as shared characteristic features of MRT71 syndrome, and we further characterize their observed dysmorphic features and brain MRI findings. This description of a third family with a truncating ALKBH8 variant from a distinct population broadens the phenotypic and genotypic spectrum of MRT71 syndrome, affirms that perturbations in tRNA biogenesis can contribute to neurogenetic disease traits, and firmly establishes ALKBH8 as a novel neurodevelopmental disease gene. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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32. HMZDupFinder: a robust computational approach for detecting intragenic homozygous duplications from exome sequencing data.
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Du, Haowei, Dardas, Zain, Jolly, Angad, Grochowski, Christopher M, Jhangiani, Shalini N, Li, He, Muzny, Donna, Fatih, Jawid M, Yesil, Gozde, Elçioglu, Nursel H, Gezdirici, Alper, Marafi, Dana, Pehlivan, Davut, Calame, Daniel G, Carvalho, Claudia M B, Posey, Jennifer E, Gambin, Tomasz, Coban-Akdemir, Zeynep, and Lupski, James R
- Published
- 2024
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33. Congenital diaphragmatic hernia as a prominent feature of a SPECC1L‐related syndrome.
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Wild, K. Taylor, Gordon, Tia, Bhoj, Elizabeth J., Du, Haowei, Jhangiani, Shalini N., Posey, Jennifer E., Lupski, James R., Scott, Daryl A., and Zackai, Elaine H.
- Abstract
Congenital diaphragmatic hernias (CDH) confer substantial morbidity and mortality. Genetic defects, including chromosomal anomalies, copy number variants, and sequence variants are identified in ~30% of patients with CDH. A genetic etiology is not yet found in 70% of patients, however there is a growing number of genetic syndromes and single gene disorders associated with CDH. While there have been two reported individuals with X‐linked Opitz G/BBB syndrome with MID1 mutations who have CDH as an associated feature, CDH appears to be a much more prominent feature of a SPECC1L‐related autosomal dominant Opitz G/BBB syndrome. Features unique to autosomal dominant Opitz G/BBB syndrome include branchial fistulae, omphalocele, and a bicornuate uterus. Here we present one new individual and five previously reported individuals with CDH found to have SPECC1L mutations. These cases provide strong evidence that SPECC1L is a bona fide CDH gene. We conclude that a SPECC1L‐related Opitz G/BBB syndrome should be considered in any patient with CDH who has additional features of hypertelorism, a prominent forehead, a broad nasal bridge, anteverted nares, cleft lip/palate, branchial fistulae, omphalocele, and/or bicornuate uterus. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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34. Biallelic GRM7 variants cause epilepsy, microcephaly, and cerebral atrophy.
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Marafi, Dana, Mitani, Tadahiro, Isikay, Sedat, Hertecant, Jozef, Almannai, Mohammed, Manickam, Kandamurugu, Abou Jamra, Rami, El‐Hattab, Ayman W., Rajah, Jaishen, Fatih, Jawid M., Du, Haowei, Karaca, Ender, Bayram, Yavuz, Punetha, Jaya, Rosenfeld, Jill A., Jhangiani, Shalini N., Boerwinkle, Eric, Akdemir, Zeynep C., Erdin, Serkan, and Hunter, Jill V.
- Subjects
CEREBRAL atrophy ,NEUROTRANSMITTER receptors ,GLUTAMATE receptors ,NEURAL transmission ,EPILEPSY ,LEUKODYSTROPHY ,NEUROCYSTICERCOSIS - Abstract
Objective: Defects in ion channels and neurotransmitter receptors are implicated in developmental and epileptic encephalopathy (DEE). Metabotropic glutamate receptor 7 (mGluR7), encoded by GRM7, is a presynaptic G‐protein‐coupled glutamate receptor critical for synaptic transmission. We previously proposed GRM7 as a candidate disease gene in two families with neurodevelopmental disorders (NDDs). One additional family has been published since. Here, we describe three additional families with GRM7 biallelic variants and deeply characterize the associated clinical neurological and electrophysiological phenotype and molecular data in 11 affected individuals from six unrelated families. Methods: Exome sequencing and family‐based rare variant analyses on a cohort of 220 consanguineous families with NDDs revealed three families with GRM7 biallelic variants; three additional families were identified through literature search and collaboration with a clinical molecular laboratory. Results: We compared the observed clinical features and variants of 11 affected individuals from the six unrelated families. Identified novel deleterious variants included two homozygous missense variants (c.2671G>A:p.Glu891Lys and c.1973G>A:p.Arg685Gln) and one homozygous stop‐gain variant (c.1975C>T:p.Arg659Ter). Developmental delay, neonatal‐ or infantile‐onset epilepsy, and microcephaly were universal. Three individuals had hypothalamic–pituitary–axis dysfunction without pituitary structural abnormality. Neuroimaging showed cerebral atrophy and hypomyelination in a majority of cases. Two siblings demonstrated progressive loss of myelination by 2 years in both and an acquired microcephaly pattern in one. Five individuals died in early or late childhood. Conclusion: Detailed clinical characterization of 11 individuals from six unrelated families demonstrates that rare biallelic GRM7 pathogenic variants can cause DEEs, microcephaly, hypomyelination, and cerebral atrophy. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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35. Back Cover, Volume 43, Issue 7.
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Lima, Ariadne R., Ferreira, Barbara M., Zhang, Chaofan, Jolly, Angad, Du, Haowei, White, Janson J., Dawood, Moez, Lins, Tulio C., Chiabai, Marcela A., van Beusekom, Ellen, Cordoba, Mara S., Caldas Rosa, Erica C.C., Kayserili, Hulya, Kimonis, Virginia, Wu, Erica, Mellado, Cecilia, Aggarwal, Vineet, Richieri‐Costa, Antonio, Brunoni, Décio, and Canó, Talyta M.
- Published
- 2022
- Full Text
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36. Biallelic in-frame deletion in TRAPPC4 in a family with developmental delay and cerebellar atrophy.
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Saad, Ahmed K, Marafi, Dana, Mitani, Tadahiro, Jolly, Angad, Du, Haowei, Elbendary, Hasnaa M, Jhangiani, Shalini N, Akdemir, Zeynep C, Genomics, Baylor-Hopkins Center for Mendelian, Gibbs, Richard A, Hunter, Jill V, Carvalho, Claudia M B C, Pehlivan, Davut, Posey, Jennifer E, Zaki, Maha S, Lupski, James R, and Baylor-Hopkins Center for Mendelian Genomics
- Subjects
DEVELOPMENTAL delay ,ATROPHY ,MEDICAL genetics ,MOLECULAR genetics ,GENOMICS ,RESEARCH ,GENETIC mutation ,RESEARCH methodology ,EVALUATION research ,MEDICAL cooperation ,COMPARATIVE studies ,CEREBELLUM diseases ,RESEARCH funding - Published
- 2020
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37. Hourly operation strategy of a CCHP system with GSHP and thermal energy storage (TES) under variable loads : a case study
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Wei Liu, Guanyi Chen, Jian Zuo, Haowei Du, Zhihua Zhou, Beibei Yan, Liu, Wei, Chen, Guanyi, Yan, Beibei, Zhou, Zhihua, Du, Haowei, and Zuo, Jian
- Subjects
Chiller ,Engineering ,Waste management ,business.industry ,Mechanical Engineering ,Nuclear engineering ,thermal energy storage ,Building and Construction ,Cooling capacity ,Thermal energy storage ,GSHP ,Power (physics) ,Electricity generation ,Internal combustion engine ,CCHP system ,Storage tank ,Electrical and Electronic Engineering ,business ,Absorption (electromagnetic radiation) ,operation strategy ,Civil and Structural Engineering - Abstract
Due to the national strategy of energy saving and environmental pollutant reduction, combined cooling, heating and power (CCHP) has been employed in China. A CCHP system with thermal energy storage (TES) is used as an energy station, usually consisting of a power generation unit (PGU), an absorption machine (AM), two ground source heat pumps (GSHPs), a storage tank (ST) and two electric chillers (ECs). The available PGU was compared between the gas turbine and the internal combustion engine (ICE), and the hourly operating strategies with different cooling and heating loads were analyzed. The environmental impacts were also calculated. The results show that the ICE is more suitable for the energy station. The TES reduces by 15.8% of the total installed cooling capacity and 37.5% of the total installed heating capacity of the CCHP system. The hourly operating strategies should be changed with the weather condition. The results are very valuable in guiding a CCHP system applied in engineering projects. Refereed/Peer-reviewed
- Published
- 2015
38. Genomic Balancing Act: deciphering DNA rearrangements in the complex chromosomal aberration involving 5p15.2, 2q31.1, and 18q21.32.
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Dardas Z, Marafi D, Duan R, Fatih JM, El-Rashidy OF, Grochowski CM, Carvalho CMB, Jhangiani SN, Bi W, Du H, Gibbs RA, Posey JE, Calame DG, Zaki MS, and Lupski JR
- Abstract
Despite extensive research into the genetic underpinnings of neurodevelopmental disorders (NDD), many clinical cases remain unresolved. We studied a female proband with a NDD, mildly dysmorphic facial features, and brain stem hypoplasia on neuroimaging. Comprehensive genomic analyses revealed a terminal 5p loss and a terminal 18q gain in the proband while a diploid copy number for chromosomes 5 and 18 in both parents. Genomic investigations in the proband identified an unbalanced translocation t(5;18) with additional genetic material from chromosome 2 (2q31.3) inserted at the breakpoint, pointing to a complex chromosomal rearrangement (CCR) involving 5p15.2, 2q31.3, and 18q21.32. Breakpoint junction analyses enabled by long-read genome sequencing unveiled the presence of four distinct junctions in the father, who is a carrier of a balanced CCR. The proband inherited from the father both the abnormal chromosome 5 resulting in segmental aneusomies of chr5 (loss) and chr18 (gain) and a der(2) homologue. Evidences suggest a chromoplexy mechanism for this CCR derivation, involving double-strand breaks (DSBs) repaired by non-homologous end joining (NHEJ) or alternative end joining (alt-EJ). The complexity of the CCR and the segregation of homologues elucidate the genetic model for this family. This study demonstrates the importance of combining multiple genomic technologies to uncover genetic causes of complex neurodevelopmental syndromes and to better understand genetic disease mechanisms., (© 2024. The Author(s).)
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- 2024
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39. Genomic Balancing Act: Deciphering DNA rearrangements in the Complex Chromosomal Aberration involving 5p15.2, 2q31.1 and 18q21.32.
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Lupski J, Dardas Z, Marafi D, Duan R, Fatih J, El-Rashidy O, Grochowski C, Carvalho C, Jhangiani S, Bi W, Du H, Gibbs R, Posey J, Calame D, and Zaki M
- Abstract
Despite extensive research into the genetic underpinnings of neurodevelopmental disorders (NDD), many clinical cases remain unresolved. We studied a female proband with a NDD, mildly dysmorphic facial features, and brain stem hypoplasia on neuroimaging. Comprehensive genomic analyses revealed a terminal 5p loss and terminal 18q gain in the proband while a diploid copy number for chromosomes 5 and 18 in both parents. Genomic investigations in the proband identified an unbalanced translocation t(5;18) with additional genetic material from chromosome 2 (2q31.3) inserted at the breakpoint, pointing to a complex chromosomal rearrangement (CCR) involving 5p15.2, 2q31.3, and 18q21.32. Breakpoint junction analyses enabled by long read genome sequencing unveiled the presence of four distinct junctions in the father, who is carrier of a balanced CCR. The proband inherited from the father both the abnormal chromosome 5 resulting in segmental aneusomies of chr5 (loss) and chr18 (gain) and a der(2) homologue. Evidences suggest a chromoplexy mechanism for this CCR derivation, involving double-strand breaks (DSBs) repaired by non-homologous end joining (NHEJ) or alternative end joining (alt-EJ). The complexity of the CCR and the segregation of homologues elucidate the genetic model for this family. This study demonstrates the importance of combining multiple genomic technologies to uncover genetic causes of complex neurodevelopmental syndrome and to better understand genetic disease mechanisms., Competing Interests: Additional Declarations: J.R.L. has stock ownership in 23andMe, is a paid consultant for Genome International, and is a co-inventor on multiple U.S. and European patents related to molecular diagnostics for inherited neuropathies, genomic disorders, eye diseases, and bacterial genomic fingerprinting. The Department of Molecular and Human Genetics at Baylor College of Medicine derives revenue from the chromosomal microarray analysis and clinical genomic sequencing (both ES and GS) offered in the Baylor Genetics Laboratory (http://bmgl.com). J.R.L. serves on the Scientific Advisory Board of BG.
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- 2024
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40. Biallelic variation in the choline and ethanolamine transporter FLVCR1 underlies a pleiotropic disease spectrum from adult neurodegeneration to severe developmental disorders.
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Calame DG, Wong JH, Panda P, Nguyen DT, Leong NCP, Sangermano R, Patankar SG, Abdel-Hamid M, AlAbdi L, Safwat S, Flannery KP, Dardas Z, Fatih JM, Murali C, Kannan V, Lotze TE, Herman I, Ammouri F, Rezich B, Efthymiou S, Alavi S, Murphy D, Firoozfar Z, Nasab ME, Bahreini A, Ghasemi M, Haridy NA, Goldouzi HR, Eghbal F, Karimiani EG, Srinivasan VM, Gowda VK, Du H, Jhangiani SN, Coban-Akdemir Z, Marafi D, Rodan L, Isikay S, Rosenfeld JA, Ramanathan S, Staton M, Kerby C Oberg, Clark RD, Wenman C, Loughlin S, Saad R, Ashraf T, Male A, Tadros S, Boostani R, Abdel-Salam GMH, Zaki M, Abdalla E, Manzini MC, Pehlivan D, Posey JE, Gibbs RA, Houlden H, Alkuraya FS, Bujakowska K, Maroofian R, Lupski JR, and Nguyen LN
- Abstract
FLVCR1 encodes Feline leukemia virus subgroup C receptor 1 (FLVCR1), a solute carrier (SLC) transporter within the Major Facilitator Superfamily. FLVCR1 is a widely expressed transmembrane protein with plasma membrane and mitochondrial isoforms implicated in heme, choline, and ethanolamine transport. While Flvcr1 knockout mice die in utero with skeletal malformations and defective erythropoiesis reminiscent of Diamond-Blackfan anemia, rare biallelic pathogenic FLVCR1 variants are linked to childhood or adult-onset neurodegeneration of the retina, spinal cord, and peripheral nervous system. We ascertained from research and clinical exome sequencing 27 individuals from 20 unrelated families with biallelic ultra-rare missense and predicted loss-of-function (pLoF) FLVCR1 variant alleles. We characterize an expansive FLVCR1 phenotypic spectrum ranging from adult-onset retinitis pigmentosa to severe developmental disorders with microcephaly, reduced brain volume, epilepsy, spasticity, and premature death. The most severely affected individuals, including three individuals with homozygous pLoF variants, share traits with Flvcr1 knockout mice and Diamond-Blackfan anemia including macrocytic anemia and congenital skeletal malformations. Pathogenic FLVCR1 missense variants primarily lie within transmembrane domains and reduce choline and ethanolamine transport activity compared with wild-type FLVCR1 with minimal impact on FLVCR1 stability or subcellular localization. Several variants disrupt splicing in a mini-gene assay which may contribute to genotype-phenotype correlations. Taken together, these data support an allele-specific gene dosage model in which phenotypic severity reflects residual FLVCR1 activity. This study expands our understanding of Mendelian disorders of choline and ethanolamine transport and demonstrates the importance of choline and ethanolamine in neurodevelopment and neuronal homeostasis., Competing Interests: Potential Conflict of Interest J.R.L. has stock ownership in 23andMe, is a paid consultant for Genome International, and is a co-inventor on multiple United States and European patents related to molecular diagnostics for inherited neuropathies, eye diseases, genomic disorders, and bacterial genomic fingerprinting. The Department of Molecular and Human Genetics at Baylor College of Medicine receives revenue from clinical genetic testing conducted at Baylor Genetics (BG) Laboratories. Other authors have no potential conflicts to disclose.
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- 2024
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41. Break-induced replication underlies formation of inverted triplications and generates unexpected diversity in haplotype structures.
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Grochowski CM, Bengtsson JD, Du H, Gandhi M, Lun MY, Mehaffey MG, Park K, Höps W, Benito-Garagorri E, Hasenfeld P, Korbel JO, Mahmoud M, Paulin LF, Jhangiani SN, Muzny DM, Fatih JM, Gibbs RA, Pendleton M, Harrington E, Juul S, Lindstrand A, Sedlazeck FJ, Pehlivan D, Lupski JR, and Carvalho CMB
- Abstract
Background: The duplication-triplication/inverted-duplication (DUP-TRP/INV-DUP) structure is a type of complex genomic rearrangement (CGR) hypothesized to result from replicative repair of DNA due to replication fork collapse. It is often mediated by a pair of inverted low-copy repeats (LCR) followed by iterative template switches resulting in at least two breakpoint junctions in cis . Although it has been identified as an important mutation signature of pathogenicity for genomic disorders and cancer genomes, its architecture remains unresolved and is predicted to display at least four structural variation (SV) haplotypes., Results: Here we studied the genomic architecture of DUP-TRP/INV-DUP by investigating the genomic DNA of 24 patients with neurodevelopmental disorders identified by array comparative genomic hybridization (aCGH) on whom we found evidence for the existence of 4 out of 4 predicted SV haplotypes. Using a combination of short-read genome sequencing (GS), long- read GS, optical genome mapping and StrandSeq the haplotype structure was resolved in 18 samples. This approach refined the point of template switching between inverted LCRs in 4 samples revealing a DNA segment of ∼2.2-5.5 kb of 100% nucleotide similarity. A prediction model was developed to infer the LCR used to mediate the non-allelic homology repair., Conclusions: These data provide experimental evidence supporting the hypothesis that inverted LCRs act as a recombinant substrate in replication-based repair mechanisms. Such inverted repeats are particularly relevant for formation of copy-number associated inversions, including the DUP-TRP/INV-DUP structures. Moreover, this type of CGR can result in multiple conformers which contributes to generate diverse SV haplotypes in susceptible loci .
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- 2023
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42. SNV/indel hypermutator phenotype in biallelic RAD51C variant - Fanconi anemia.
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Zemet R, Du H, Gambin T, Lupski JR, Liu P, and Stankiewicz P
- Abstract
We previously reported a fetus with Fanconi anemia (FA), complementation group O due to compound heterozygous variants involving RAD51C . Interestingly, the trio exome sequencing analysis also detected eight apparent de novo mosaic variants with variant allele fraction (VAF) ranging between 11.5%-37%. Here, using whole genome sequencing and a 'home-brew' variant filtering pipeline and DeepMosaic module, we investigated the number and signature of de novo heterozygous and mosaic variants and the rare phenomenon of hypermutation. Eight-hundred-thirty apparent dnSNVs and 21 de novo indels had VAFs below 37.41% and were considered postzygotic somatic mosaic variants. The VAFs showed a bimodal distribution, with one component with an average VAF of 25% (range: 18.7-37.41%) (n=446), representing potential postzygotic first mitotic events, and the other component with an average VAF of 12.5% (range: 9.55-18.69%) (n=384), describing potential second mitotic events. No increased rate of CNV formation was observed. The mutational pattern analysis for somatic single base substitution showed SBS40, SBS5, and SBS3 as the top recognized signatures. SBS3 is a known signature associated with homologous recombination-based DNA damage repair error. Our data demonstrate that biallelic RAD51C variants show evidence for defective genomic DNA damage repair and thereby result in a hypermutator phenotype with the accumulation of postzygotic de novo mutations, at least in the prenatal period. This 'genome hypermutator phenomenon' might contribute to the observed hematological manifestations and the predisposition to tumors in patients with FA, and pregnancy loss in general. We propose that other FA groups should be investigated for genome-wide de novo variants.
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- 2023
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43. A reverse genetics and genomics approach to gene paralog function and disease: Myokymia and the juxtaparanode.
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Marafi D, Kozar N, Duan R, Bradley S, Yokochi K, Al Mutairi F, Saadi NW, Whalen S, Brunet T, Kotzaeridou U, Choukair D, Keren B, Nava C, Kato M, Arai H, Froukh T, Faqeih EA, AlAsmari AM, Saleh MM, Pinto E Vairo F, Pichurin PN, Klee EW, Schmitz CT, Grochowski CM, Mitani T, Herman I, Calame DG, Fatih JM, Du H, Coban-Akdemir Z, Pehlivan D, Jhangiani SN, Gibbs RA, Miyatake S, Matsumoto N, Wagstaff LJ, Posey JE, Lupski JR, Meijer D, and Wagner M
- Subjects
- Animals, Autoantibodies, Axons, Genomics, Humans, Intracellular Signaling Peptides and Proteins genetics, Mammals genetics, Mice, Phenotype, Reverse Genetics, Myokymia, Nerve Tissue Proteins genetics
- Abstract
The leucine-rich glioma-inactivated (LGI) family consists of four highly conserved paralogous genes, LGI1-4, that are highly expressed in mammalian central and/or peripheral nervous systems. LGI1 antibodies are detected in subjects with autoimmune limbic encephalitis and peripheral nerve hyperexcitability syndromes (PNHSs) such as Isaacs and Morvan syndromes. Pathogenic variations of LGI1 and LGI4 are associated with neurological disorders as disease traits including familial temporal lobe epilepsy and neurogenic arthrogryposis multiplex congenita 1 with myelin defects, respectively. No human disease has been reported associated with either LGI2 or LGI3. We implemented exome sequencing and family-based genomics to identify individuals with deleterious variants in LGI3 and utilized GeneMatcher to connect practitioners and researchers worldwide to investigate the clinical and electrophysiological phenotype in affected subjects. We also generated Lgi3-null mice and performed peripheral nerve dissection and immunohistochemistry to examine the juxtaparanode LGI3 microarchitecture. As a result, we identified 16 individuals from eight unrelated families with loss-of-function (LoF) bi-allelic variants in LGI3. Deep phenotypic characterization showed LGI3 LoF causes a potentially clinically recognizable PNHS trait characterized by global developmental delay, intellectual disability, distal deformities with diminished reflexes, visible facial myokymia, and distinctive electromyographic features suggestive of motor nerve instability. Lgi3-null mice showed reduced and mis-localized Kv1 channel complexes in myelinated peripheral axons. Our data demonstrate bi-allelic LoF variants in LGI3 cause a clinically distinguishable disease trait of PNHS, most likely caused by disturbed Kv1 channel distribution in the absence of LGI3., Competing Interests: Declaration of interests J.R.L. has stock ownership in 23andMe; is a paid consultant for Regeneron Genetics Center; and is a co-inventor on multiple United States and European patents related to molecular diagnostics for inherited neuropathies, eye diseases, genomic disorders, and bacterial genomic fingerprinting. The Department of Molecular and Human Genetics at Baylor College of Medicine receives revenue from clinical genetic testing conducted at Baylor Genetics (BG); J.R.L. serves on the Scientific Advisory Board (SAB) of BG., (Copyright © 2022. Published by Elsevier Inc.)
- Published
- 2022
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44. Developmental genomics of limb malformations: Allelic series in association with gene dosage effects contribute to the clinical variability.
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Duan R, Hijazi H, Gulec EY, Eker HK, Costa SR, Sahin Y, Ocak Z, Isikay S, Ozalp O, Bozdogan S, Aslan H, Elcioglu N, Bertola DR, Gezdirici A, Du H, Fatih JM, Grochowski CM, Akay G, Jhangiani SN, Karaca E, Gu S, Coban-Akdemir Z, Posey JE, Bayram Y, Sutton VR, Carvalho CMB, Pehlivan D, Gibbs RA, and Lupski JR
- Abstract
Genetic heterogeneity, reduced penetrance, and variable expressivity, the latter including asymmetric body axis plane presentations, have all been described in families with congenital limb malformations (CLMs). Interfamilial and intrafamilial heterogeneity highlight the complexity of the underlying genetic pathogenesis of these developmental anomalies. Family-based genomics by exome sequencing (ES) and rare variant analyses combined with whole-genome array-based comparative genomic hybridization were implemented to investigate 18 families with limb birth defects. Eleven of 18 (61%) families revealed explanatory variants, including 7 single-nucleotide variant alleles and 3 copy number variants (CNVs), at previously reported "disease trait associated loci": BHLHA9 , GLI3, HOXD cluster, HOXD13 , NPR2 , and WNT10B . Breakpoint junction analyses for all three CNV alleles revealed mutational signatures consistent with microhomology-mediated break-induced replication, a mechanism facilitated by Alu/Alu -mediated rearrangement. Homozygous duplication of BHLHA9 was observed in one Turkish kindred and represents a novel contributory genetic mechanism to Gollop-Wolfgang Complex (MIM: 228250), where triplication of the locus has been reported in one family from Japan (i.e., 4n = 2n + 2n versus 4n = 3n + 1n allelic configurations). Genes acting on limb patterning are sensitive to a gene dosage effect and are often associated with an allelic series. We extend an allele-specific gene dosage model to potentially assist, in an adjuvant way, interpretations of interconnections among an allelic series, clinical severity, and reduced penetrance of the BHLHA9 -related CLM spectrum., Competing Interests: J.R.L. has stock ownership in 23andMe, is a paid consultant for the Regeneron Genetics Center, and is a co-inventor on multiple United States and European patents related to molecular diagnostics for inherited neuropathies, eye diseases, genomic disorders, and bacterial genomic fingerprinting. The Department of Molecular and Human Genetics at Baylor College of Medicine receives revenue from clinical genetic testing and genomic testing (ES, WGS, CMA, and aCGH) conducted at Baylor Genetics (BG). J.R.L. serves on the Scientific Advisory Board (SAB) of BG., (© 2022 The Author(s).)
- Published
- 2022
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45. Biallelic variants in SLC38A3 encoding a glutamine transporter cause epileptic encephalopathy.
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Marafi D, Fatih JM, Kaiyrzhanov R, Ferla MP, Gijavanekar C, Al-Maraghi A, Liu N, Sites E, Alsaif HS, Al-Owain M, Zakkariah M, El-Anany E, Guliyeva U, Guliyeva S, Gaba C, Haseeb A, Alhashem AM, Danish E, Karageorgou V, Beetz C, Subhi AA, Mullegama SV, Torti E, Sebastin M, Breilyn MS, Duberstein S, Abdel-Hamid MS, Mitani T, Du H, Rosenfeld JA, Jhangiani SN, Coban Akdemir Z, Gibbs RA, Taylor JC, Fakhro KA, Hunter JV, Pehlivan D, Zaki MS, Gleeson JG, Maroofian R, Houlden H, Posey JE, Sutton VR, Alkuraya FS, Elsea SH, and Lupski JR
- Subjects
- Glutamine metabolism, Histidine metabolism, Humans, Metabolome, Nitrogen metabolism, Epilepsy, Generalized diagnosis, Epilepsy, Generalized genetics, Sodium-Calcium Exchanger genetics
- Abstract
The solute carrier (SLC) superfamily encompasses >400 transmembrane transporters involved in the exchange of amino acids, nutrients, ions, metals, neurotransmitters and metabolites across biological membranes. SLCs are highly expressed in the mammalian brain; defects in nearly 100 unique SLC-encoding genes (OMIM: https://www.omim.org) are associated with rare Mendelian disorders including developmental and epileptic encephalopathy and severe neurodevelopmental disorders. Exome sequencing and family-based rare variant analyses on a cohort with neurodevelopmental disorders identified two siblings with developmental and epileptic encephalopathy and a shared deleterious homozygous splicing variant in SLC38A3. The gene encodes SNAT3, a sodium-coupled neutral amino acid transporter and a principal transporter of the amino acids asparagine, histidine, and glutamine, the latter being the precursor for the neurotransmitters GABA and glutamate. Additional subjects with a similar developmental and epileptic encephalopathy phenotype and biallelic predicted-damaging SLC38A3 variants were ascertained through GeneMatcher and collaborations with research and clinical molecular diagnostic laboratories. Untargeted metabolomic analysis was performed to identify novel metabolic biomarkers. Ten individuals from seven unrelated families from six different countries with deleterious biallelic variants in SLC38A3 were identified. Global developmental delay, intellectual disability, hypotonia, and absent speech were common features while microcephaly, epilepsy, and visual impairment were present in the majority. Epilepsy was drug-resistant in half. Metabolomic analysis revealed perturbations of glutamate, histidine, and nitrogen metabolism in plasma, urine, and CSF of selected subjects, potentially representing biomarkers of disease. Our data support the contention that SLC38A3 is a novel disease gene for developmental and epileptic encephalopathy and illuminate the likely pathophysiology of the disease as perturbations in glutamine homeostasis., (© The Author(s) (2021). Published by Oxford University Press on behalf of the Guarantors of Brain. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2022
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46. Retrospective analysis of a clinical exome sequencing cohort reveals the mutational spectrum and identifies candidate disease-associated loci for BAFopathies.
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Chen CA, Lattier J, Zhu W, Rosenfeld J, Wang L, Scott TM, Du H, Patel V, Dang A, Magoulas P, Streff H, Sebastian J, Svihovec S, Curry K, Delgado MR, Hanchard NA, Lalani S, Marom R, Madan-Khetarpal S, Saenz M, Dai H, Meng L, Xia F, Bi W, Liu P, Posey JE, Scott DA, Lupski JR, Eng CM, Xiao R, and Yuan B
- Subjects
- Actins genetics, Chromosomal Proteins, Non-Histone genetics, DNA-Binding Proteins genetics, Exome genetics, Humans, Retrospective Studies, Abnormalities, Multiple genetics, Hand Deformities, Congenital genetics, Micrognathism genetics
- Abstract
Purpose: BRG1/BRM-associated factor (BAF) complex is a chromatin remodeling complex that plays a critical role in gene regulation. Defects in the genes encoding BAF subunits lead to BAFopathies, a group of neurodevelopmental disorders with extensive locus and phenotypic heterogeneity., Methods: We retrospectively analyzed data from 16,243 patients referred for clinical exome sequencing (ES) with a focus on the BAF complex. We applied a genotype-first approach, combining predicted genic constraints to propose candidate BAFopathy genes., Results: We identified 127 patients carrying pathogenic variants, likely pathogenic variants, or de novo variants of unknown clinical significance in 11 known BAFopathy genes. Those include 34 patients molecularly diagnosed using ES reanalysis with new gene-disease evidence (n = 21) or variant reclassifications in known BAFopathy genes (n = 13). We also identified de novo or predicted loss-of-function variants in 4 candidate BAFopathy genes, including ACTL6A, BICRA (implicated in Coffin-Siris syndrome during this study), PBRM1, and SMARCC1., Conclusion: We report the mutational spectrum of BAFopathies in an ES cohort. A genotype-driven and pathway-based reanalysis of ES data identified new evidence for candidate genes involved in BAFopathies. Further mechanistic and phenotypic characterization of additional patients are warranted to confirm their roles in human disease and to delineate their associated phenotypic spectrums., Competing Interests: Conflict of Interest Baylor College of Medicine and Miraca Holdings Inc have formed a joint venture with shared ownership and governance of Baylor Genetics, formerly the Baylor Miraca Genetics Laboratories, which performs chromosomal microarray analysis and clinical exome sequencing. J.L., W.Z., L.W., V.P., A.D., H.Da., L.M., F.X., W.B., P.L., and C.M.E. are employees of Baylor College of Medicine and derive support through a professional services agreement with Baylor Genetics. J.R.L. serves on the Scientific Advisory Board of the Regeneron Genetics Center and has stock ownership in 23andMe. All other authors declare no conflicts of interest., (Copyright © 2021 American College of Medical Genetics and Genomics. Published by Elsevier Inc. All rights reserved.)
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- 2022
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47. Novel pathogenic variants and quantitative phenotypic analyses of Robinow syndrome: WNT signaling perturbation and phenotypic variability.
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Zhang C, Jolly A, Shayota BJ, Mazzeu JF, Du H, Dawood M, Soper PC, Ramalho de Lima A, Ferreira BM, Coban-Akdemir Z, White J, Shears D, Thomson FR, Douglas SL, Wainwright A, Bailey K, Wordsworth P, Oldridge M, Lester T, Calder AD, Dumic K, Banka S, Donnai D, Jhangiani SN, Potocki L, Chung WK, Mora S, Northrup H, Ashfaq M, Rosenfeld JA, Mason K, Pollack LC, McConkie-Rosell A, Kelly W, McDonald M, Hauser NS, Leahy P, Powell CM, Boy R, Honjo RS, Kok F, Martelli LR, Filho VO, Genomics England Research Consortium, Muzny DM, Gibbs RA, Posey JE, Liu P, Lupski JR, Sutton VR, and Carvalho CMB
- Abstract
Robinow syndrome (RS) is a genetically heterogeneous disorder with six genes that converge on the WNT/planar cell polarity (PCP) signaling pathway implicated ( DVL1 , DVL3 , FZD2 , NXN , ROR2 , and WNT5A ). RS is characterized by skeletal dysplasia and distinctive facial and physical characteristics. To further explore the genetic heterogeneity, paralog contribution, and phenotypic variability of RS, we investigated a cohort of 22 individuals clinically diagnosed with RS from 18 unrelated families. Pathogenic or likely pathogenic variants in genes associated with RS or RS phenocopies were identified in all 22 individuals, including the first variant to be reported in DVL2 . We retrospectively collected medical records of 16 individuals from this cohort and extracted clinical descriptions from 52 previously published cases. We performed Human Phenotype Ontology (HPO) based quantitative phenotypic analyses to dissect allele-specific phenotypic differences. Individuals with FZD2 variants clustered into two groups with demonstrable phenotypic differences between those with missense and truncating alleles. Probands with biallelic NXN variants clustered together with the majority of probands carrying DVL1 , DVL2 , and DVL3 variants, demonstrating no phenotypic distinction between the NXN -autosomal recessive and dominant forms of RS. While phenotypically similar diseases on the RS differential matched through HPO analysis, clustering using phenotype similarity score placed RS-associated phenotypes in a unique cluster containing WNT5A , FZD2 , and ROR2 apart from non-RS-associated paralogs. Through human phenotype analyses of this RS cohort and OMIM clinical synopses of Mendelian disease, this study begins to tease apart specific biologic roles for non-canonical WNT-pathway proteins., Competing Interests: BCM and Miraca Holdings have formed a joint venture with shared ownership and governance of BG, which performs clinical microarray analysis (CMA), clinical ES (cES), and clinical biochemical studies. V.R.S. and P.L. receive professional services compensation from BG and J.R.L. serves on the Scientific Advisory Board of the BG. J.R.L. has stock ownership in 23andMe, is a paid consultant for the Regeneron Genetics Center, and is a coinventor on multiple United States and European patents related to molecular diagnostics for inherited neuropathies, eye diseases, and bacterial genomic fingerprinting. W.K.C. is a is a paid consultant for the Regeneron Genetics Center. P.C.S. and S.M. are employees of GeneDx. The other authors declare no competing interests., (© 2021 The Author(s).)
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- 2021
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48. Biallelic Pathogenic Variants in TNNT3 Associated With Congenital Myopathy.
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Calame DG, Fatih J, Herman I, Akdemir ZC, Du H, Jhangiani SN, Gibbs RA, Marafi D, Pehlivan D, Posey JE, Lotze T, Mancias P, Bhattacharjee MB, and Lupski JR
- Abstract
Objective: Pathogenic variants in TNNT3 , the gene encoding fast skeletal muscle troponin T, were first described in autosomal dominant distal arthrogryposis type 2B2. Recently, a homozygous splice site variant, c.681+1G>A, was identified in a patient with nemaline myopathy and distal arthrogryposis. Here, we describe the second individual with congenital myopathy associated with biallelic TNNT3 variants., Methods: Clinical exome sequencing data from a patient with molecularly undiagnosed congenital myopathy underwent research reanalysis. Clinical and histopathologic data were collected and compared with the single reported patient with TNNT3 -related congenital myopathy., Results: A homozygous TNNT3 variant, c.481-1G>A, was identified. This variant alters a consensus splice acceptor and is predicted to affect splicing by multiple in silico prediction tools. Both the patient reported here and the previously published patient exhibited limb, bulbar, and respiratory muscle weakness from birth, which improved over time. Other shared features include history of polyhydramnios, hypotonia, scoliosis, and high-arched palate. Distal arthrogryposis and nemaline rods, findings reported in the first patient with TNNT3 -related congenital myopathy, were not observed in the patient reported here., Conclusions: This report provides further evidence for the association of biallelic TNNT3 variants with severe recessive congenital myopathy with or without nemaline rods and distal arthrogryposis. TNNT3 sequencing and copy number analysis should be incorporated into the workup of congenital myopathies., (Copyright © 2021 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology.)
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- 2021
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49. An international virtual hackathon to build tools for the analysis of structural variants within species ranging from coronaviruses to vertebrates.
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Mc Cartney AM, Mahmoud M, Jochum M, Agustinho DP, Zorman B, Al Khleifat A, Dabbaghie F, K Kesharwani R, Smolka M, Dawood M, Albin D, Aliyev E, Almabrazi H, Arslan A, Balaji A, Behera S, Billingsley K, L Cameron D, Daw J, T Dawson E, De Coster W, Du H, Dunn C, Esteban R, Jolly A, Kalra D, Liao C, Liu Y, Lu TY, M Havrilla J, M Khayat M, Marin M, Monlong J, Price S, Rafael Gener A, Ren J, Sagayaradj S, Sapoval N, Sinner C, C Soto D, Soylev A, Subramaniyan A, Syed N, Tadimeti N, Tater P, Vats P, Vaughn J, Walker K, Wang G, Zeng Q, Zhang S, Zhao T, Kille B, Biederstedt E, Chaisson M, English A, Kronenberg Z, J Treangen T, Hefferon T, Chin CS, Busby B, and J Sedlazeck F
- Subjects
- Animals, Genome, Viral, Humans, Vertebrates, COVID-19, SARS-CoV-2
- Abstract
In October 2020, 62 scientists from nine nations worked together remotely in the Second Baylor College of Medicine & DNAnexus hackathon, focusing on different related topics on Structural Variation, Pan-genomes, and SARS-CoV-2 related research. The overarching focus was to assess the current status of the field and identify the remaining challenges. Furthermore, how to combine the strengths of the different interests to drive research and method development forward. Over the four days, eight groups each designed and developed new open-source methods to improve the identification and analysis of variations among species, including humans and SARS-CoV-2. These included improvements in SV calling, genotyping, annotations and filtering. Together with advancements in benchmarking existing methods. Furthermore, groups focused on the diversity of SARS-CoV-2. Daily discussion summary and methods are available publicly at https://github.com/collaborativebioinformatics provides valuable insights for both participants and the research community., Competing Interests: Competing interests: Wouter De Coster has received free sequencing consumables and travel reimbursement to speak at conferences from Oxford Nanopore Technologies. Jason Chin and Ben Busby are employees of DNAnexus. Zev Kronenberg is an employee and shareholder of Pacific BioSciences; is a shareholder of Phase Genomics. Christopher Dunn is an employee and shareholder of Pacific BioSciences. FS received travel and conference reimbursements from Oxford Nanopore and PacBio. Qiandong Zeng is an employee of Laboratory Corporation of America Holdings, a company providing clinical diagnostics services., (Copyright: © 2021 Mc Cartney AM et al.)
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- 2021
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50. Biallelic in-frame deletion in TRAPPC4 in a family with developmental delay and cerebellar atrophy.
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Saad AK, Marafi D, Mitani T, Jolly A, Du H, Elbendary HM, Jhangiani SN, Akdemir ZC, Gibbs RA, Hunter JV, Carvalho CMBC, Pehlivan D, Posey JE, Zaki MS, and Lupski JR
- Subjects
- Atrophy, Humans, Sequence Deletion genetics, Cerebellar Diseases genetics, Intellectual Disability
- Published
- 2020
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