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1. Secondary ACMG and non-ACMG genetic findings in a multiethnic cohort of 16,713 pediatric participants

Author

Aliazami, Farnoush, Ribeiro Carneiro, Thaise Nayane, Akbarzadeh, Mahdi, Kazemioula, Golnesa, Saeidian, Amir Hesam, Palizban, Fahimeh, Biglari, Sajjad, Coleman, David, Snyder, James, Wang, Fengxiang, Billings, Jonathan, Terek, Shannon, Mentch, Frank, Regan-Fendt, Kelly, Tsoi, Lam C., Dorrani, Naghmeh, Saeidian, Amir Hossein, March, Michael E., Youssefian, Leila, Watson, Deborah J., Bhandari, Esha, Wang, Xiang, Zhao, Xiaonan, Owen, Nichole Marie, Strong, Alanna, Harr, Margaret H., Bhoj, Elizabeth, Zackai, Elaine, Vahidnezhad, Hassan, Gudjonsson, Johann E., Cederbaum, Stephen D., Deignan, Joshua L., Glessner, Joseph, Grody, Wayne W., and Hakonarson, Hakon

Published
2024
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2. Gain and loss of function variants in EZH1 disrupt neurogenesis and cause dominant and recessive neurodevelopmental disorders

Author

Gracia-Diaz, Carolina, Zhou, Yijing, Yang, Qian, Maroofian, Reza, Espana-Bonilla, Paula, Lee, Chul-Hwan, Zhang, Shuo, Padilla, Natàlia, Fueyo, Raquel, Waxman, Elisa A., Lei, Sunyimeng, Otrimski, Garrett, Li, Dong, Sheppard, Sarah E., Mark, Paul, Harr, Margaret H., Hakonarson, Hakon, Rodan, Lance, Jackson, Adam, Vasudevan, Pradeep, Powel, Corrina, Mohammed, Shehla, Maddirevula, Sateesh, Alzaidan, Hamad, Faqeih, Eissa A., Efthymiou, Stephanie, Turchetti, Valentina, Rahman, Fatima, Maqbool, Shazia, Salpietro, Vincenzo, Ibrahim, Shahnaz H., di Rosa, Gabriella, Houlden, Henry, Alharbi, Maha Nasser, Al-Sannaa, Nouriya Abbas, Bauer, Peter, Zifarelli, Giovanni, Estaras, Conchi, Hurst, Anna C. E., Thompson, Michelle L., Chassevent, Anna, Smith-Hicks, Constance L., de la Cruz, Xavier, Holtz, Alexander M., Elloumi, Houda Zghal, Hajianpour, M J, Rieubland, Claudine, Braun, Dominique, Banka, Siddharth, French, Deborah L., Heller, Elizabeth A., Saade, Murielle, Song, Hongjun, Ming, Guo-li, Alkuraya, Fowzan S., Agrawal, Pankaj B., Reinberg, Danny, Bhoj, Elizabeth J., Martínez-Balbás, Marian A., and Akizu, Naiara

Published
2023
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3. Expanding the genotypic and phenotypic spectrum in a diverse cohort of 104 individuals with Wiedemann‐Steiner syndrome

Author

Sheppard, Sarah E, Campbell, Ian M, Harr, Margaret H, Gold, Nina, Li, Dong, Bjornsson, Hans T, Cohen, Julie S, Fahrner, Jill A, Fatemi, Ali, Harris, Jacqueline R, Nowak, Catherine, Stevens, Cathy A, Grand, Katheryn, Au, Margaret, Graham, John M, Sanchez‐Lara, Pedro A, Del Campo, Miguel, Jones, Marilyn C, Abdul‐Rahman, Omar, Alkuraya, Fowzan S, Bassetti, Jennifer A, Bergstrom, Katherine, Bhoj, Elizabeth, Dugan, Sarah, Kaplan, Julie D, Derar, Nada, Gripp, Karen W, Hauser, Natalie, Innes, A Micheil, Keena, Beth, Kodra, Neslida, Miller, Rebecca, Nelson, Beverly, Nowaczyk, Malgorzata J, Rahbeeni, Zuhair, Ben‐Shachar, Shay, Shieh, Joseph T, Slavotinek, Anne, Sobering, Andrew K, Abbott, Mary‐Alice, Allain, Dawn C, Amlie‐Wolf, Louise, Au, Ping Yee Billie, Bedoukian, Emma, Beek, Geoffrey, Barry, James, Berg, Janet, Bernstein, Jonathan A, Cytrynbaum, Cheryl, Chung, Brian Hon‐Yin, Donoghue, Sarah, Dorrani, Naghmeh, Eaton, Alison, Flores‐Daboub, Josue A, Dubbs, Holly, Felix, Carolyn A, Fong, Chin‐To, Fung, Jasmine Lee Fong, Gangaram, Balram, Goldstein, Amy, Greenberg, Rotem, Ha, Thoa K, Hersh, Joseph, Izumi, Kosuke, Kallish, Staci, Kravets, Elijah, Kwok, Pui‐Yan, Jobling, Rebekah K, Johnson, Amy E Knight, Kushner, Jessica, Lee, Bo Hoon, Levin, Brooke, Lindstrom, Kristin, Manickam, Kandamurugu, Mardach, Rebecca, McCormick, Elizabeth, McLeod, D Ross, Mentch, Frank D, Minks, Kelly, Muraresku, Colleen, Nelson, Stanley F, Porazzi, Patrizia, Pichurin, Pavel N, Powell‐Hamilton, Nina N, Powis, Zoe, Ritter, Alyssa, Rogers, Caleb, Rohena, Luis, Ronspies, Carey, Schroeder, Audrey, Stark, Zornitza, Starr, Lois, Stoler, Joan, Suwannarat, Pim, Velinov, Milen, Weksberg, Rosanna, Wilnai, Yael, Zadeh, Neda, Zand, Dina J, and Falk, Marni J

Subjects
Congenital Structural Anomalies, Clinical Research, Brain Disorders, Rare Diseases, Pediatric, Aetiology, 2.1 Biological and endogenous factors, Black People, Constipation, Failure to Thrive, Genetic Association Studies, Genetic Predisposition to Disease, Growth Disorders, Histone-Lysine N-Methyltransferase, Humans, Hypertrichosis, Intellectual Disability, Loss of Function Mutation, Myeloid-Lymphoid Leukemia Protein, Retrospective Studies, White People, hypertrichosis, KMT2A, MLL1, syndromic intellectual disability, syndromic short stature, Wiedemann&#8208, Steiner syndrome, Wiedemann-Steiner syndrome, Genetics, Clinical Sciences
Abstract

Wiedemann-Steiner syndrome (WSS) is an autosomal dominant disorder caused by monoallelic variants in KMT2A and characterized by intellectual disability and hypertrichosis. We performed a retrospective, multicenter, observational study of 104 individuals with WSS from five continents to characterize the clinical and molecular spectrum of WSS in diverse populations, to identify physical features that may be more prevalent in White versus Black Indigenous People of Color individuals, to delineate genotype-phenotype correlations, to define developmental milestones, to describe the syndrome through adulthood, and to examine clinicians' differential diagnoses. Sixty-nine of the 82 variants (84%) observed in the study were not previously reported in the literature. Common clinical features identified in the cohort included: developmental delay or intellectual disability (97%), constipation (63.8%), failure to thrive (67.7%), feeding difficulties (66.3%), hypertrichosis cubiti (57%), short stature (57.8%), and vertebral anomalies (46.9%). The median ages at walking and first words were 20 months and 18 months, respectively. Hypotonia was associated with loss of function (LoF) variants, and seizures were associated with non-LoF variants. This study identifies genotype-phenotype correlations as well as race-facial feature associations in an ethnically diverse cohort, and accurately defines developmental trajectories, medical comorbidities, and long-term outcomes in individuals with WSS.

Published
2021

4. The reckoning: The return of genomic results to 1444 participants across the eMERGE3 Network

Author

Leppig, Kathleen A., Kulchak Rahm, Alanna, Appelbaum, Paul, Aufox, Sharon, Bland, Harris T., Buchanan, Adam, Christensen, Kurt D., Chung, Wendy K., Clayton, Ellen Wright, Crosslin, David, Denny, Josh, DeVange, Shannon, Gordon, Adam, Green, Robert C., Hakonarson, Hakon, Harr, Margaret H., Henrikson, Nora, Hoell, Christin, Holm, Ingrid A., Kullo, Iftikhar J., Jarvik, Gail P., Lammers, Philip E., Larson, Eric B., Lindor, Noralane M., Marasa, Maddalena, Myers, Melanie F., Perez, Emma, Peterson, Josh F., Pratap, Siddharth, Prows, Cynthia A., Ralston, James D., Rasouly, Hila Milo, Roden, Dan M., Sharp, Richard R., Singh, Rajbir, Shaibi, Gabriel, Smith, Maureen E., Sturm, Amy, Thiese, Heidi A., Van Driest, Sara L., Williams, Janet, Williams, Marc S., Wynn, Julia, Blout Zawatsky, Carrie L., and Wiesner, Georgia L.

Published
2022
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5. Spliceosome malfunction causes neurodevelopmental disorders with overlapping features

Author

Genetica, Genetica Sectie Research, Cancer, Child Health, Li, Dong, Wang, Qin, Bayat, Allan, Battig, Mark R., Zhou, Yijing, Bosch, Daniëlle G.M., van Haaften, Gijs, Granger, Leslie, Petersen, Andrea K., Pérez-Jurado, Luis A., Aznar-Laín, Gemma, Aneja, Anushree, Hancarova, Miroslava, Bendova, Sarka, Schwarz, Martin, Pourova, Radka Kremlikova, Sedlacek, Zdenek, Keena, Beth A., March, Michael E., Hou, Cuiping, O’Connor, Nora, Bhoj, Elizabeth J., Harr, Margaret H., Lemire, Gabrielle, Boycott, Kym M., Towne, Meghan, Li, Megan, Tarnopolsky, Mark, Brady, Lauren, Parker, Michael J., Faghfoury, Hanna, Parsley, Lea Kristin, Agolini, Emanuele, Dentici, Maria Lisa, Novelli, Antonio, Wright, Meredith, Palmquist, Rachel, Lai, Khanh, Scala, Marcello, Striano, Pasquale, Iacomino, Michele, Zara, Federico, Cooper, Annina, Maarup, Timothy J., Byler, Melissa, Lebel, Robert Roger, Balci, Tugce B., Louie, Raymond, Lyons, Michael, Douglas, Jessica, Nowak, Catherine, Afenjar, Alexandra, Hoyer, Juliane, Keren, Boris, Maas, Saskia M., Motazacker, Mahdi M., Martinez-Agosto, Julian A., Rabani, Ahna M., McCormick, Elizabeth M., Falk, Marni J., Ruggiero, Sarah M., Helbig, Ingo, Møller, Rikke S., Tessarollo, Lino, Ardori, Francesco Tomassoni, Palko, Mary Ellen, Hsieh, Tzung Chien, Krawitz, Peter M., Ganapathi, Mythily, Gelb, Bruce D., Jobanputra, Vaidehi, Wilson, Ashley, Greally, John, Jacquemont, Sébastien, Jizi, Khadijé, Bruel, Ange Line, Quelin, Chloé, Misra, Vinod K., Chick, Erika, Romano, Corrado, Greco, Donatella, Arena, Alessia, Morleo, Manuela, Nigro, Vincenzo, Seyama, Rie, Uchiyama, Yuri, Matsumoto, Naomichi, Taira, Ryoji, Tashiro, Katsuya, Sakai, Yasunari, Yigit, Gökhan, Wollnik, Bernd, Wagner, Michael, Kutsche, Barbara, Hurst, Anna C.E., Thompson, Michelle L., Schmidt, Ryan, Randolph, Linda, Spillmann, Rebecca C., Shashi, Vandana, Higginbotham, Edward J., Cordeiro, Dawn, Carnevale, Amanda, Costain, Gregory, Khan, Tayyaba, Funalot, Benoît, Mau-Them, Frederic Tran, Garcia Moya, Luis Fernandez, García-Miñaúr, Sixto, Osmond, Matthew, Chad, Lauren, Quercia, Nada, Carrasco, Diana, Li, Chumei, Sanchez-Valle, Amarilis, Kelley, Meghan, Nizon, Mathilde, Jensson, Brynjar O., Sulem, Patrick, Stefansson, Kari, Gorokhova, Svetlana, Busa, Tiffany, Rio, Marlène, Habdallah, Hamza Hadj, Lesieur-Sebellin, Marion, Amiel, Jeanne, Pingault, Véronique, Mercier, Sandra, Vincent, Marie, Philippe, Christophe, Fatus-Fauconnier, Clemence, Friend, Kathryn, Halligan, Rebecca K., Biswas, Sunita, Rosser, Jane, Shoubridge, Cheryl, Corbett, Mark, Barnett, Christopher, Gecz, Jozef, Leppig, Kathleen, Slavotinek, Anne, Marcelis, Carlo, Pfundt, Rolph, de Vries, Bert B.A., van Slegtenhorst, Marjon A., Brooks, Alice S., Cogne, Benjamin, Rambaud, Thomas, Tümer, Zeynep, Zackai, Elaine H., Akizu, Naiara, Song, Yuanquan, Hakonarson, Hakon, Genetica, Genetica Sectie Research, Cancer, Child Health, Li, Dong, Wang, Qin, Bayat, Allan, Battig, Mark R., Zhou, Yijing, Bosch, Daniëlle G.M., van Haaften, Gijs, Granger, Leslie, Petersen, Andrea K., Pérez-Jurado, Luis A., Aznar-Laín, Gemma, Aneja, Anushree, Hancarova, Miroslava, Bendova, Sarka, Schwarz, Martin, Pourova, Radka Kremlikova, Sedlacek, Zdenek, Keena, Beth A., March, Michael E., Hou, Cuiping, O’Connor, Nora, Bhoj, Elizabeth J., Harr, Margaret H., Lemire, Gabrielle, Boycott, Kym M., Towne, Meghan, Li, Megan, Tarnopolsky, Mark, Brady, Lauren, Parker, Michael J., Faghfoury, Hanna, Parsley, Lea Kristin, Agolini, Emanuele, Dentici, Maria Lisa, Novelli, Antonio, Wright, Meredith, Palmquist, Rachel, Lai, Khanh, Scala, Marcello, Striano, Pasquale, Iacomino, Michele, Zara, Federico, Cooper, Annina, Maarup, Timothy J., Byler, Melissa, Lebel, Robert Roger, Balci, Tugce B., Louie, Raymond, Lyons, Michael, Douglas, Jessica, Nowak, Catherine, Afenjar, Alexandra, Hoyer, Juliane, Keren, Boris, Maas, Saskia M., Motazacker, Mahdi M., Martinez-Agosto, Julian A., Rabani, Ahna M., McCormick, Elizabeth M., Falk, Marni J., Ruggiero, Sarah M., Helbig, Ingo, Møller, Rikke S., Tessarollo, Lino, Ardori, Francesco Tomassoni, Palko, Mary Ellen, Hsieh, Tzung Chien, Krawitz, Peter M., Ganapathi, Mythily, Gelb, Bruce D., Jobanputra, Vaidehi, Wilson, Ashley, Greally, John, Jacquemont, Sébastien, Jizi, Khadijé, Bruel, Ange Line, Quelin, Chloé, Misra, Vinod K., Chick, Erika, Romano, Corrado, Greco, Donatella, Arena, Alessia, Morleo, Manuela, Nigro, Vincenzo, Seyama, Rie, Uchiyama, Yuri, Matsumoto, Naomichi, Taira, Ryoji, Tashiro, Katsuya, Sakai, Yasunari, Yigit, Gökhan, Wollnik, Bernd, Wagner, Michael, Kutsche, Barbara, Hurst, Anna C.E., Thompson, Michelle L., Schmidt, Ryan, Randolph, Linda, Spillmann, Rebecca C., Shashi, Vandana, Higginbotham, Edward J., Cordeiro, Dawn, Carnevale, Amanda, Costain, Gregory, Khan, Tayyaba, Funalot, Benoît, Mau-Them, Frederic Tran, Garcia Moya, Luis Fernandez, García-Miñaúr, Sixto, Osmond, Matthew, Chad, Lauren, Quercia, Nada, Carrasco, Diana, Li, Chumei, Sanchez-Valle, Amarilis, Kelley, Meghan, Nizon, Mathilde, Jensson, Brynjar O., Sulem, Patrick, Stefansson, Kari, Gorokhova, Svetlana, Busa, Tiffany, Rio, Marlène, Habdallah, Hamza Hadj, Lesieur-Sebellin, Marion, Amiel, Jeanne, Pingault, Véronique, Mercier, Sandra, Vincent, Marie, Philippe, Christophe, Fatus-Fauconnier, Clemence, Friend, Kathryn, Halligan, Rebecca K., Biswas, Sunita, Rosser, Jane, Shoubridge, Cheryl, Corbett, Mark, Barnett, Christopher, Gecz, Jozef, Leppig, Kathleen, Slavotinek, Anne, Marcelis, Carlo, Pfundt, Rolph, de Vries, Bert B.A., van Slegtenhorst, Marjon A., Brooks, Alice S., Cogne, Benjamin, Rambaud, Thomas, Tümer, Zeynep, Zackai, Elaine H., Akizu, Naiara, Song, Yuanquan, and Hakonarson, Hakon

Published
2024

6. Spliceosome malfunction causes neurodevelopmental disorders with overlapping features

Author

Li, Dong, Wang, Qin, Bayat, Allan, Battig, Mark R., Zhou, Yijing, Bosch, Daniëlle G.M., van Haaften, Gijs, Granger, Leslie, Petersen, Andrea K., Pérez-Jurado, Luis A., Aznar-Laín, Gemma, Aneja, Anushree, Hancarova, Miroslava, Bendova, Sarka, Schwarz, Martin, Pourova, Radka Kremlikova, Sedlacek, Zdenek, Keena, Beth A., March, Michael E., Hou, Cuiping, O’Connor, Nora, Bhoj, Elizabeth J., Harr, Margaret H., Lemire, Gabrielle, Boycott, Kym M., Towne, Meghan, Li, Megan, Tarnopolsky, Mark, Brady, Lauren, Parker, Michael J., Faghfoury, Hanna, Parsley, Lea Kristin, Agolini, Emanuele, Dentici, Maria Lisa, Novelli, Antonio, Wright, Meredith, Palmquist, Rachel, Lai, Khanh, Scala, Marcello, Striano, Pasquale, Iacomino, Michele, Zara, Federico, Cooper, Annina, Maarup, Timothy J., Byler, Melissa, Lebel, Robert Roger, Balci, Tugce B., Louie, Raymond, Lyons, Michael, Douglas, Jessica, Nowak, Catherine, Afenjar, Alexandra, Hoyer, Juliane, Keren, Boris, Maas, Saskia M., Motazacker, Mahdi M., Martinez-Agosto, Julian A., Rabani, Ahna M., McCormick, Elizabeth M., Falk, Marni J., Ruggiero, Sarah M., Helbig, Ingo, Møller, Rikke S., Tessarollo, Lino, Ardori, Francesco Tomassoni, Palko, Mary Ellen, Hsieh, Tzung Chien, Krawitz, Peter M., Ganapathi, Mythily, Gelb, Bruce D., Jobanputra, Vaidehi, Wilson, Ashley, Greally, John, Jacquemont, Sébastien, Jizi, Khadijé, Bruel, Ange Line, Quelin, Chloé, Misra, Vinod K., Chick, Erika, Romano, Corrado, Greco, Donatella, Arena, Alessia, Morleo, Manuela, Nigro, Vincenzo, Seyama, Rie, Uchiyama, Yuri, Matsumoto, Naomichi, Taira, Ryoji, Tashiro, Katsuya, Sakai, Yasunari, Yigit, Gökhan, Wollnik, Bernd, Wagner, Michael, Kutsche, Barbara, Hurst, Anna C.E., Thompson, Michelle L., Schmidt, Ryan, Randolph, Linda, Spillmann, Rebecca C., Shashi, Vandana, Higginbotham, Edward J., Cordeiro, Dawn, Carnevale, Amanda, Costain, Gregory, Khan, Tayyaba, Funalot, Benoît, Mau-Them, Frederic Tran, Garcia Moya, Luis Fernandez, García-Miñaúr, Sixto, Osmond, Matthew, Chad, Lauren, Quercia, Nada, Carrasco, Diana, Li, Chumei, Sanchez-Valle, Amarilis, Kelley, Meghan, Nizon, Mathilde, Jensson, Brynjar O., Sulem, Patrick, Stefansson, Kari, Gorokhova, Svetlana, Busa, Tiffany, Rio, Marlène, Habdallah, Hamza Hadj, Lesieur-Sebellin, Marion, Amiel, Jeanne, Pingault, Véronique, Mercier, Sandra, Vincent, Marie, Philippe, Christophe, Fatus-Fauconnier, Clemence, Friend, Kathryn, Halligan, Rebecca K., Biswas, Sunita, Rosser, Jane, Shoubridge, Cheryl, Corbett, Mark, Barnett, Christopher, Gecz, Jozef, Leppig, Kathleen, Slavotinek, Anne, Marcelis, Carlo, Pfundt, Rolph, de Vries, Bert B.A., van Slegtenhorst, Marjon A., Brooks, Alice S., Cogne, Benjamin, Rambaud, Thomas, Tümer, Zeynep, Zackai, Elaine H., Akizu, Naiara, Song, Yuanquan, Hakonarson, Hakon, Li, Dong, Wang, Qin, Bayat, Allan, Battig, Mark R., Zhou, Yijing, Bosch, Daniëlle G.M., van Haaften, Gijs, Granger, Leslie, Petersen, Andrea K., Pérez-Jurado, Luis A., Aznar-Laín, Gemma, Aneja, Anushree, Hancarova, Miroslava, Bendova, Sarka, Schwarz, Martin, Pourova, Radka Kremlikova, Sedlacek, Zdenek, Keena, Beth A., March, Michael E., Hou, Cuiping, O’Connor, Nora, Bhoj, Elizabeth J., Harr, Margaret H., Lemire, Gabrielle, Boycott, Kym M., Towne, Meghan, Li, Megan, Tarnopolsky, Mark, Brady, Lauren, Parker, Michael J., Faghfoury, Hanna, Parsley, Lea Kristin, Agolini, Emanuele, Dentici, Maria Lisa, Novelli, Antonio, Wright, Meredith, Palmquist, Rachel, Lai, Khanh, Scala, Marcello, Striano, Pasquale, Iacomino, Michele, Zara, Federico, Cooper, Annina, Maarup, Timothy J., Byler, Melissa, Lebel, Robert Roger, Balci, Tugce B., Louie, Raymond, Lyons, Michael, Douglas, Jessica, Nowak, Catherine, Afenjar, Alexandra, Hoyer, Juliane, Keren, Boris, Maas, Saskia M., Motazacker, Mahdi M., Martinez-Agosto, Julian A., Rabani, Ahna M., McCormick, Elizabeth M., Falk, Marni J., Ruggiero, Sarah M., Helbig, Ingo, Møller, Rikke S., Tessarollo, Lino, Ardori, Francesco Tomassoni, Palko, Mary Ellen, Hsieh, Tzung Chien, Krawitz, Peter M., Ganapathi, Mythily, Gelb, Bruce D., Jobanputra, Vaidehi, Wilson, Ashley, Greally, John, Jacquemont, Sébastien, Jizi, Khadijé, Bruel, Ange Line, Quelin, Chloé, Misra, Vinod K., Chick, Erika, Romano, Corrado, Greco, Donatella, Arena, Alessia, Morleo, Manuela, Nigro, Vincenzo, Seyama, Rie, Uchiyama, Yuri, Matsumoto, Naomichi, Taira, Ryoji, Tashiro, Katsuya, Sakai, Yasunari, Yigit, Gökhan, Wollnik, Bernd, Wagner, Michael, Kutsche, Barbara, Hurst, Anna C.E., Thompson, Michelle L., Schmidt, Ryan, Randolph, Linda, Spillmann, Rebecca C., Shashi, Vandana, Higginbotham, Edward J., Cordeiro, Dawn, Carnevale, Amanda, Costain, Gregory, Khan, Tayyaba, Funalot, Benoît, Mau-Them, Frederic Tran, Garcia Moya, Luis Fernandez, García-Miñaúr, Sixto, Osmond, Matthew, Chad, Lauren, Quercia, Nada, Carrasco, Diana, Li, Chumei, Sanchez-Valle, Amarilis, Kelley, Meghan, Nizon, Mathilde, Jensson, Brynjar O., Sulem, Patrick, Stefansson, Kari, Gorokhova, Svetlana, Busa, Tiffany, Rio, Marlène, Habdallah, Hamza Hadj, Lesieur-Sebellin, Marion, Amiel, Jeanne, Pingault, Véronique, Mercier, Sandra, Vincent, Marie, Philippe, Christophe, Fatus-Fauconnier, Clemence, Friend, Kathryn, Halligan, Rebecca K., Biswas, Sunita, Rosser, Jane, Shoubridge, Cheryl, Corbett, Mark, Barnett, Christopher, Gecz, Jozef, Leppig, Kathleen, Slavotinek, Anne, Marcelis, Carlo, Pfundt, Rolph, de Vries, Bert B.A., van Slegtenhorst, Marjon A., Brooks, Alice S., Cogne, Benjamin, Rambaud, Thomas, Tümer, Zeynep, Zackai, Elaine H., Akizu, Naiara, Song, Yuanquan, and Hakonarson, Hakon

Abstract

Pre-mRNA splicing is a highly coordinated process. While its dysregulation has been linked to neurological deficits, our understanding of the underlying molecular and cellular mechanisms remains limited. We implicated pathogenic variants in U2AF2 and PRPF19, encoding spliceosome subunits in neurodevelopmental disorders (NDDs), by identifying 46 unrelated individuals with 23 de novo U2AF2 missense variants (including 7 recurrent variants in 30 individuals) and 6 individuals with de novo PRPF19 variants. Eight U2AF2 variants dysregulated splicing of a model substrate. Neuritogenesis was reduced in human neurons differentiated from human pluripotent stem cells carrying two U2AF2 hyper-recurrent variants. Neural loss of function (LoF) of the Drosophila orthologs U2af50 and Prp19 led to lethality, abnormal mushroom body (MB) patterning, and social deficits, which were differentially rescued by wild-type and mutant U2AF2 or PRPF19. Transcriptome profiling revealed splicing substrates or effectors (including Rbfox1, a third splicing factor), which rescued MB defects in U2af50deficient flies. Upon reanalysis of negative clinical exomes followed by data sharing, we further identified 6 patients with NDD who carried RBFOX1 missense variants which, by in vitro testing, showed LoF. Our study implicates 3 splicing factors as NDD-causative genes and establishes a genetic network with hierarchy underlying human brain development and function.

Published
2024

7. Mandibulofacial Dysostosis with Microcephaly: Mutation and Database Update

Author

Huang, Lijia, Vanstone, Megan R, Hartley, Taila, Osmond, Matthew, Barrowman, Nick, Allanson, Judith, Baker, Laura, Dabir, Tabib A, Dipple, Katrina M, Dobyns, William B, Estrella, Jane, Faghfoury, Hanna, Favaro, Francine P, Goel, Himanshu, Gregersen, Pernille A, Gripp, Karen W, Grix, Art, Guion‐Almeida, Maria‐Leine, Harr, Margaret H, Hudson, Cindy, Hunter, Alasdair GW, Johnson, John, Joss, Shelagh K, Kimball, Amy, Kini, Usha, Kline, Antonie D, Lauzon, Julie, Lildballe, Dorte L, López‐González, Vanesa, Martinezmoles, Johanna, Meldrum, Cliff, Mirzaa, Ghayda M, Morel, Chantal F, Morton, Jenny EV, Pyle, Louise C, Quintero‐Rivera, Fabiola, Richer, Julie, Scheuerle, Angela E, Schönewolf‐Greulich, Bitten, Shears, Deborah J, Silver, Josh, Smith, Amanda C, Temple, I Karen, Center, UCLA Clinical Genomics, de Kamp, Jiddeke M, Dijk, Fleur S, Vandersteen, Anthony M, White, Sue M, Zackai, Elaine H, Zou, Ruobing, Consortium, Care4Rare Canada, Bulman, Dennis E, Boycott, Kym M, and Lines, Matthew A

Subjects
Pediatric, Congenital Structural Anomalies, Rare Diseases, Genetics, Prevention, Human Genome, Neurosciences, Clinical Research, Dental/Oral and Craniofacial Disease, 2.1 Biological and endogenous factors, Aetiology, Congenital, Abnormalities, Multiple, Amino Acid Motifs, Databases, Genetic, Gene Expression, Haploinsufficiency, Hearing Loss, Humans, Intellectual Disability, Mandibulofacial Dysostosis, Microcephaly, Models, Molecular, Molecular Sequence Data, Mutation, Penetrance, Peptide Elongation Factors, Phenotype, Protein Structure, Secondary, Protein Structure, Tertiary, RNA Splicing, Ribonucleoprotein, U5 Small Nuclear, Spliceosomes, EFTUD2, mandibulofacial dysostosis with microcephaly, MFDM, mandibulofacial dysostosis Guion-Almeida type, mandibulofacial dysostosis, microcephaly, UCLA Clinical Genomics Center, Care4Rare Canada Consortium, Clinical Sciences, Genetics & Heredity
Abstract

Mandibulofacial dysostosis with microcephaly (MFDM) is a multiple malformation syndrome comprising microcephaly, craniofacial anomalies, hearing loss, dysmorphic features, and, in some cases, esophageal atresia. Haploinsufficiency of a spliceosomal GTPase, U5-116 kDa/EFTUD2, is responsible. Here, we review the molecular basis of MFDM in the 69 individuals described to date, and report mutations in 38 new individuals, bringing the total number of reported individuals to 107 individuals from 94 kindreds. Pathogenic EFTUD2 variants comprise 76 distinct mutations and seven microdeletions. Among point mutations, missense substitutions are infrequent (14 out of 76; 18%) relative to stop-gain (29 out of 76; 38%), and splicing (33 out of 76; 43%) mutations. Where known, mutation origin was de novo in 48 out of 64 individuals (75%), dominantly inherited in 12 out of 64 (19%), and due to proven germline mosaicism in four out of 64 (6%). Highly penetrant clinical features include, microcephaly, first and second arch craniofacial malformations, and hearing loss; esophageal atresia is present in an estimated ∼27%. Microcephaly is virtually universal in childhood, with some adults exhibiting late "catch-up" growth and normocephaly at maturity. Occasionally reported anomalies, include vestibular and ossicular malformations, reduced mouth opening, atrophy of cerebral white matter, structural brain malformations, and epibulbar dermoid. All reported EFTUD2 mutations can be found in the EFTUD2 mutation database (http://databases.lovd.nl/shared/genes/EFTUD2).

Published
2016

8. Spliceosome malfunction causes neurodevelopmental disorders with overlapping features

Author

Li, Dong, primary, Wang, Qin, additional, Bayat, Allan, additional, Battig, Mark R., additional, Zhou, Yijing, additional, Bosch, Daniëlle G.M., additional, van Haaften, Gijs, additional, Granger, Leslie, additional, Petersen, Andrea K., additional, Pérez-Jurado, Luis A., additional, Aznar-Laín, Gemma, additional, Aneja, Anushree, additional, Hancarova, Miroslava, additional, Bendova, Sarka, additional, Schwarz, Martin, additional, Kremlíková Pourová, Radka, additional, Sedlacek, Zdenek, additional, Keena, Beth A., additional, March, Michael E., additional, Hou, Cuiping, additional, O'Connor, Nora, additional, Bhoj, Elizabeth J., additional, Harr, Margaret H., additional, Lemire, Gabrielle, additional, Boycott, Kym M., additional, Towne, Meghan C., additional, Li, Megan, additional, Tarnopolsky, Mark, additional, Brady, Lauren, additional, Parker, Michael J., additional, Faghfoury, Hanna, additional, Parsley, Lea Kristin, additional, Agolini, Emanuele, additional, Dentici, Maria Lisa, additional, Novelli, Antonio, additional, Wright, Meredith S., additional, Palmquist, Rachel, additional, Lai, Khanh, additional, Scala, Marcello, additional, Striano, Pasquale, additional, Iacomino, Michele, additional, Zara, Federico, additional, Cooper, Annina, additional, Maarup, Timothy J., additional, Byler, Melissa, additional, Lebel, Robert Roger, additional, Balci, Tugce B., additional, Louie, Raymond J., additional, Lyons, Michael J., additional, Douglas, Jessica, additional, Nowak, Catherine B., additional, Afenjar, Alexandra, additional, Hoyer, Juliane, additional, Keren, Boris, additional, Maas, Saskia M., additional, Motazacker, Mahdi M., additional, Martinez-Agosto, Julian A., additional, Rabani, Ahna M., additional, McCormick, Elizabeth M., additional, Falk, Marni, additional, Ruggiero, Sarah M., additional, Helbig, Ingo, additional, Møller, Rikke S., additional, Tessarollo, Lino, additional, Tomassoni-Ardori, Francesco, additional, Palko, Mary Ellen, additional, Hsieh, Tzung-Chien, additional, Krawitz, Peter M., additional, Ganapathi, Mythily, additional, Gelb, Bruce D., additional, Jobanputra, Vaidehi, additional, Wilson, Ashley, additional, Greally, John, additional, Jacquemont, Sébastien, additional, Jizi, Khadijé, additional, Ange-Line, Bruel, additional, Quelin, Chloé, additional, Misra, Vinod K., additional, Chick, Erika, additional, Romano, Corrado, additional, Greco, Donatella, additional, Arena, Alessia, additional, Morleo, Manuela, additional, Nigro, Vincenzo, additional, Seyama, Rie, additional, Uchiyama, Yuri, additional, Matsumoto, Naomichi, additional, Taira, Ryoji, additional, Tashiro, Katsuya, additional, Sakai, Yasunari, additional, Yigit, Gökhan, additional, Wollnik, Bernd, additional, Wagner, Michael, additional, Kutsche, Barbara, additional, Hurst, Anna C.E., additional, Thompson, Michelle L., additional, Schmidt, Ryan J., additional, Randolph, Linda M., additional, Spillmann, Rebecca C., additional, Shashi, Vandana, additional, Higginbotham, Edward J., additional, Cordeiro, Dawn, additional, Carnevale, Amanda, additional, Costain, Gregory, additional, Khan, Tayyaba, additional, Funalot, Benoît, additional, Tran Mau-Them, Frederic, additional, Fernandez Garcia Moya, Luis, additional, García-Miñaúr, Sixto, additional, Osmond, Matthew, additional, Chad, Lauren, additional, Quercia, Nada, additional, Carrasco, Diana, additional, Li, Chumei, additional, Sanchez-Valle, Amarilis, additional, Kelley, Meghan, additional, Nizon, Mathilde, additional, Jensson, Brynjar O., additional, Sulem, Patrick, additional, Stefansson, Kari, additional, Gorokhova, Svetlana, additional, Busa, Tiffany, additional, Rio, Marlène, additional, Hadj Abdallah, Hamza, additional, Lesieur-Sebellin, Marion, additional, Amiel, Jeanne, additional, Pingault, Véronique, additional, Mercier, Sandra, additional, Vincent, Marie, additional, Philippe, Christophe, additional, Fatus-Fauconnier, Clemence, additional, Friend, Kathryn, additional, Halligan, Rebecca K., additional, Biswas, Sunita, additional, Rosser, Jane M.R., additional, Shoubridge, Cheryl, additional, Corbett, Mark A., additional, Barnett, Christopher, additional, Gecz, Jozef, additional, Leppig, Kathleen A., additional, Slavotinek, Anne, additional, Marcelis, Carlo, additional, Pfundt, Rolph, additional, de Vries, Bert B.A., additional, van Slegtenhorst, Marjon A., additional, Brooks, Alice S., additional, Cogne, Benjamin, additional, Rambaud, Thomas, additional, Tümer, Zeynep, additional, Zackai, Elaine H., additional, Akizu, Naiara, additional, Song, Yuanquan, additional, and Hakonarson, Hakon, additional

Published
2023
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9. Impairment of different protein domains causes variable clinical presentation within Pitt-Hopkins syndrome and suggests intragenic molecular syndromology of TCF4

Author

Bedeschi, Maria Francesca, Marangi, Giuseppe, Calvello, Maria Rosaria, Ricciardi, Stefania, Leone, Francesca Pia Chiara, Baccarin, Marco, Guerneri, Silvana, Orteschi, Daniela, Murdolo, Marina, Lattante, Serena, Frangella, Silvia, Keena, Beth, Harr, Margaret H., Zackai, Elaine, and Zollino, Marcella

Published
2017
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10. Autosomal recessive Noonan syndrome associated with biallelic LZTR1 variants

Author

Johnston, Jennifer J, van der Smagt, Jasper J, Rosenfeld, Jill A, Pagnamenta, Alistair T, Alswaid, Abdulrahman, Baker, Eva H, Blair, Edward, Borck, Guntram, Brinkmann, Julia, Craigen, William, Dung, Vu Chi, Emrick, Lisa, Everman, David B, van Gassen, Koen L, Gulsuner, Suleyman, Harr, Margaret H, Jain, Mahim, Kuechler, Alma, Leppig, Kathleen A, McDonald-McGinn, Donna M, Can, Ngoc Thi Bich, Peleg, Amir, Roeder, Elizabeth R, Rogers, R Curtis, Sagi-Dain, Lena, Sapp, Julie C, Schäffer, Alejandro A, Schanze, Denny, Stewart, Helen, Taylor, Jenny C, Verbeek, Nienke E, Walkiewicz, Magdalena A, Zackai, Elaine H, Zweier, Christiane, Zenker, Martin, Lee, Brendan, and Biesecker, Leslie G

Published
2018
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11. Gain and loss of function variants in EZH1 disrupt neurogenesis and cause dominant and recessive neurodevelopmental disorders

Author

National Institutes of Health (US), Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), University of Alabama at Birmingham, Ministerio de Ciencia e Innovación (España), Ministerio de Educación y Ciencia (España), Manchester Biomedical Research Centre, European Commission, National Institute for Health Research (UK), Wellcome Trust, Cancer Research UK, Medical Research Council (UK), Wellcome Sanger Institute, Gracia-Díaz, Carolina, Zhou, Yijing, Yang, Qian, Maroofian, Reza, España-Bonilla, Paula, Lee, Chul-Hwan, Zhang, Shuo, Padilla, Natàlia, Fueyo, Raquel, Waxman, Elisa A., Lei, Sunyimeng, Otrimski, Garrett, Li, Dong, Sheppard, Sarah E., Mark, Paul, Harr, Margaret H., Hakonarson, Hakon, Rodan, Lance, Jackson, Adam, Vasudevan, Pradeep, Powel, Corrina, Mohammed, Shehla, Maddirevula, Sateesh, Alzaidan, Hamad, Faqeih, Eissa A., Efthymiou, Stephanie, Turchetti, Valentina, Rahman, Fátima, Maqbool, Shazia, Salpietro, Vincenzo, Ibrahim, Shahnaz H., di Rosa, Gabriella, Houlden, Henry, Alharbi, Maha Nasser, Al-Sannaa, Nouriya Abbas, Bauer, Peter, Zifarelli, Giovanni, Estaras, Conchi, Hurst, Anna C. E., Thompson, Michelle L., Chassevent, Anna, Smith-Hicks, Constance L., Cruz, Xavier de la, Holtz, Alexander M., Elloumi, Houda Zghal, Hajianpour, M. J., Rieubland, Claudine, Braun, Dominique, Banka, Siddharth, French, Deborah L., Heller, Elizabeth A., Saade, Murielle, Song, Hongjun, Ming, Guo-Li, Alkuraya, Fowzan S., Agrawal, Pankaj B., Reinberg, Danny, Bhoj, Elizabeth J., Martínez-Balbás, Marian, Akizu, Naiara, National Institutes of Health (US), Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), University of Alabama at Birmingham, Ministerio de Ciencia e Innovación (España), Ministerio de Educación y Ciencia (España), Manchester Biomedical Research Centre, European Commission, National Institute for Health Research (UK), Wellcome Trust, Cancer Research UK, Medical Research Council (UK), Wellcome Sanger Institute, Gracia-Díaz, Carolina, Zhou, Yijing, Yang, Qian, Maroofian, Reza, España-Bonilla, Paula, Lee, Chul-Hwan, Zhang, Shuo, Padilla, Natàlia, Fueyo, Raquel, Waxman, Elisa A., Lei, Sunyimeng, Otrimski, Garrett, Li, Dong, Sheppard, Sarah E., Mark, Paul, Harr, Margaret H., Hakonarson, Hakon, Rodan, Lance, Jackson, Adam, Vasudevan, Pradeep, Powel, Corrina, Mohammed, Shehla, Maddirevula, Sateesh, Alzaidan, Hamad, Faqeih, Eissa A., Efthymiou, Stephanie, Turchetti, Valentina, Rahman, Fátima, Maqbool, Shazia, Salpietro, Vincenzo, Ibrahim, Shahnaz H., di Rosa, Gabriella, Houlden, Henry, Alharbi, Maha Nasser, Al-Sannaa, Nouriya Abbas, Bauer, Peter, Zifarelli, Giovanni, Estaras, Conchi, Hurst, Anna C. E., Thompson, Michelle L., Chassevent, Anna, Smith-Hicks, Constance L., Cruz, Xavier de la, Holtz, Alexander M., Elloumi, Houda Zghal, Hajianpour, M. J., Rieubland, Claudine, Braun, Dominique, Banka, Siddharth, French, Deborah L., Heller, Elizabeth A., Saade, Murielle, Song, Hongjun, Ming, Guo-Li, Alkuraya, Fowzan S., Agrawal, Pankaj B., Reinberg, Danny, Bhoj, Elizabeth J., Martínez-Balbás, Marian, and Akizu, Naiara

Abstract

Genetic variants in chromatin regulators are frequently found in neurodevelopmental disorders, but their effect in disease etiology is rarely determined. Here, we uncover and functionally define pathogenic variants in the chromatin modifier EZH1 as the cause of dominant and recessive neurodevelopmental disorders in 19 individuals. EZH1 encodes one of the two alternative histone H3 lysine 27 methyltransferases of the PRC2 complex. Unlike the other PRC2 subunits, which are involved in cancers and developmental syndromes, the implication of EZH1 in human development and disease is largely unknown. Using cellular and biochemical studies, we demonstrate that recessive variants impair EZH1 expression causing loss of function effects, while dominant variants are missense mutations that affect evolutionarily conserved aminoacids, likely impacting EZH1 structure or function. Accordingly, we found increased methyltransferase activity leading to gain of function of two EZH1 missense variants. Furthermore, we show that EZH1 is necessary and sufficient for differentiation of neural progenitor cells in the developing chick embryo neural tube. Finally, using human pluripotent stem cell-derived neural cultures and forebrain organoids, we demonstrate that EZH1 variants perturb cortical neuron differentiation. Overall, our work reveals a critical role of EZH1 in neurogenesis regulation and provides molecular diagnosis for previously undefined neurodevelopmental disorders.

Published
2023

12. Erratum: Discovery of a neuromuscular syndrome caused by biallelic variants in ASCC3 (Human Genetics and Genomics Advances (2021) 2(2), (S2666247721000051), (10.1016/j.xhgg.2021.100024))

Author

Nair, Divya, Li, Dong, Erdogan, Hannah, Yoon, Andrew, Harr, Margaret H., Bergant, Gaber, Peterlin, Borut, Pušenjak, Maruša Škrjanec, Jayakar, Parul, Pfundt, Rolph, Jansen, Sandra, McWalter, Kirsty, Sidhu, Alpa, Saliganan, Sheila, Agolini, Emanuele, Jacob, Arthur, Pasquier, Jennifer, Arash, Rafii, Kahrizi, Kimia, Najmabadi, Hossein, Ropers, Hans-Hilger, Bhoj, Elizabeth J., and Human genetics

Abstract

(Human Genetics and Genomics Advances 2, 100024; April 8, 2021) Patients 3-1 and 3-2 (siblings) were tested at GeneDx. They were compound heterozygous for p.Arg1472Glu and c.3434del p.Lys1145fs∗7. However c.3434del p.Lys1145fs∗7 was noted as p.Leu1145fs∗7 in Table S1 and the supplemental text. This has now been corrected, and the authors regret the error.

Published
2022

13. Outcomes of Returning Medically Actionable Genomic Results in Pediatric Research

Author

Blumling, Amy A., primary, Prows, Cynthia A., additional, Harr, Margaret H., additional, Chung, Wendy K., additional, Clayton, Ellen Wright, additional, Holm, Ingrid A., additional, Wiesner, Georgia L., additional, Connolly, John J., additional, Harley, John B., additional, Hakonarson, Hakon, additional, McGowan, Michelle L., additional, Miller, Erin M., additional, and Myers, Melanie F., additional

Published
2022
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14. The Reckoning: The Return of Genomic Results to 1444 Participants Across the eMERGE3 Network

Author

Leppig, Kathleen A., primary, Rahm, Alanna Kulchak, additional, Appelbaum, Paul, additional, Aufox, Sharon, additional, Bland, Sarah T., additional, Buchanan, Adam, additional, Christensen, Kurt D., additional, Chung, Wendy K., additional, Clayton, Ellen Wright, additional, Crosslin, David, additional, Denny, Josh, additional, DeVange, Shannon, additional, Gordon, Adam, additional, Green, Robert C., additional, Hakonarson, Hakon, additional, Harr, Margaret H., additional, Henrikson, Nora, additional, Hoell, Christin, additional, Holm, Ingrid A., additional, Kullo, Iftikhar J., additional, Jarvik, Gail P., additional, Lammers, Philip E., additional, Larson, Eric B., additional, Lindor, Noralane M., additional, Marasa, Maddalena, additional, Myers, Melanie F., additional, Perez, Emma, additional, Peterson, Josh F., additional, Pratap, Siddharth, additional, Prows, Cynthia A., additional, Ralston, James D., additional, Rasouly, Hila Milo, additional, Roden, Dan M., additional, Sharp, Richard R., additional, Singh, Rajbir, additional, Shaibi, Gabriel, additional, Smith, Maureen E., additional, Sturm, Amy, additional, Thiese, Heidi A., additional, Van Driest, Sara L., additional, Williams, Janet, additional, Williams, Marc S., additional, Wynn, Julia, additional, Blout Zawatsky, Carrie L., additional, and Wiesner, Georgia L., additional

Published
2022
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15. Discovery of a neuromuscular syndrome caused by biallelic variants in ASCC3

Author

Nair, Divya, primary, Li, Dong, additional, Erdogan, Hannah, additional, Yoon, Andrew, additional, Harr, Margaret H., additional, Bergant, Gaber, additional, Peterlin, Borut, additional, Pušenjak, Maruša Škrjanec, additional, Jayakar, Parul, additional, Pfundt, Rolph, additional, Jansen, Sandra, additional, McWalter, Kirsty, additional, Sidhu, Alpa, additional, Saliganan, Sheila, additional, Agolini, Emanuele, additional, Jacob, Arthur, additional, Pasquier, Jennifer, additional, Arash, Rafii, additional, Kahrizi, Kimia, additional, Najmabadi, Hossein, additional, Ropers, Hans-Hilger, additional, and Bhoj, Elizabeth J., additional

Published
2022
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18. Mutations in SPECC1L, encoding sperm antigen with calponin homology and coiled-coil domains 1-like, are found in some cases of autosomal dominant Opitz G/BBB syndrome

Author

Kruszka, Paul, Li, Dong, Harr, Margaret H, Wilson, Nathan R, Swarr, Daniel, McCormick, Elizabeth M, Chiavacci, Rosetta M, Li, Mindy, Martinez, Ariel F, Hart, Rachel A, McDonald-McGinn, Donna M, Deardorff, Matthew A, Falk, Marni J, Allanson, Judith E, Hudson, Cindy, Johnson, John P, Saadi, Irfan, Hakonarson, Hakon, Muenke, Maximilian, and Zackai, Elaine H

Published
2015
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19. Discovery of a neuromuscular syndrome caused by biallelic variants in ASCC3

Author

Nair, Divya, primary, Li, Dong, additional, Erdogan, Hannah, additional, Yoon, Andrew, additional, Harr, Margaret H., additional, Bergant, Gaber, additional, Peterlin, Borut, additional, Škrjanec Pušenjak, Maruša, additional, Jayakar, Parul, additional, Pfundt, Rolph, additional, Jansen, Sandra, additional, McWalter, Kirsty, additional, Sidhu, Alpa, additional, Saliganan, Sheila, additional, Agolini, Emanuele, additional, Jacob, Arthur, additional, Pasquier, Jennifer, additional, Arash, Rafii, additional, Kahrizi, Kimia, additional, Najmabadi, Hossein, additional, Ropers, Hans-Hilger, additional, and Bhoj, Elizabeth J., additional

Published
2021
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20. Returning Results in the Genomic Era: Initial Experiences of the eMERGE Network

Author

Wiesner, Georgia L., primary, Kulchak Rahm, Alanna, additional, Appelbaum, Paul, additional, Aufox, Sharon, additional, Bland, Sarah T., additional, Blout, Carrie L., additional, Christensen, Kurt D., additional, Chung, Wendy K., additional, Clayton, Ellen Wright, additional, Green, Robert C., additional, Harr, Margaret H., additional, Henrikson, Nora, additional, Hoell, Christin, additional, Holm, Ingrid A., additional, Jarvik, Gail P., additional, Kullo, Iftikhar J., additional, Lammers, Philip E., additional, Larson, Eric B., additional, Lindor, Noralane M., additional, Marasa, Maddalena, additional, F. Myers, Melanie, additional, Peterson, Josh F., additional, Prows, Cynthia A., additional, Ralston, James D., additional, Milo Rasouly, Hila, additional, Sharp, Richard R., additional, Smith, Maureen E., additional, Van Driest, Sara L., additional, Williams, Janet L., additional, Williams, Marc S., additional, Wynn, Julia, additional, and Leppig, Kathleen A., additional

Published
2020
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21. Recurrent arginine substitutions in the ACTG2 gene are the primary driver of disease burden and severity in visceral myopathy.

Author

Assia Batzir, Nurit, Kishor Bhagwat, Pranjali, Larson, Austin, Coban Akdemir, Zeynep, Bagłaj, Maciej, Bofferding, Leon, Bosanko, Katherine B., Bouassida, Skander, Callewaert, Bert, Cannon, Ashley, Enchautegui Colon, Yazmin, Garnica, Adolfo D., Harr, Margaret H., Heck, Sandra, Hurst, Anna C. E., Jhangiani, Shalini N., Isidor, Bertrand, Littlejohn, Rebecca O., Liu, Pengfei, and Magoulas, Pilar

Abstract

Visceral myopathy with abnormal intestinal and bladder peristalsis includes a clinical spectrum with megacystis‐microcolon intestinal hypoperistalsis syndrome and chronic intestinal pseudo‐obstruction. The vast majority of cases are caused by dominant variants in ACTG2; however, the overall genetic architecture of visceral myopathy has not been well‐characterized. We ascertained 53 families, with visceral myopathy based on megacystis, functional bladder/gastrointestinal obstruction, or microcolon. A combination of targeted ACTG2 sequencing and exome sequencing was used. We report a molecular diagnostic rate of 64% (34/53), of which 97% (33/34) is attributed to ACTG2. Strikingly, missense mutations in five conserved arginine residues involving CpG dinucleotides accounted for 49% (26/53) of disease in the cohort. As a group, the ACTG2‐negative cases had a more favorable clinical outcome and more restricted disease. Within the ACTG2‐positive group, poor outcomes (characterized by total parenteral nutrition dependence, death, or transplantation) were invariably due to one of the arginine missense alleles. Analysis of specific residues suggests a severity spectrum of p.Arg178>p.Arg257>p.Arg40 along with other less‐frequently reported sites p.Arg63 and p.Arg211. These results provide genotype–phenotype correlation for ACTG2‐related disease and demonstrate the importance of arginine missense changes in visceral myopathy. [ABSTRACT FROM AUTHOR]

Published
2020
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24. Secondary ACMG and non-ACMG genetic findings in a multiethnic cohort of 16,713 pediatric participants

Author

Saeidian, Amir Hossein, March, Michael E., Youssefian, Leila, Watson, Deborah J., Bhandari, Esha, Wang, Xiang, Zhao, Xiaonan, Owen, Nichole Marie, Strong, Alanna, Harr, Margaret H., Aliazami, Farnoush, Ribeiro Carneiro, Thaise Nayane, Akbarzadeh, Mahdi, Kazemioula, Golnesa, Saeidian, Amir Hesam, Palizban, Fahimeh, Biglari, Sajjad, Coleman, David, Snyder, James, Wang, Fengxiang, Billings, Jonathan, Terek, Shannon, Mentch, Frank, Regan-Fendt, Kelly, Tsoi, Lam C., Dorrani, Naghmeh, Bhoj, Elizabeth, Zackai, Elaine, Vahidnezhad, Hassan, Gudjonsson, Johann, Cederbaum, Stephen D., Deignan, Joshua L., Glessner, Joseph, Grody, Wayne W., and Hakonarson, Hakon

Abstract

Clinical next-generation sequencing is an effective approach for identifying pathogenic sequence variants that are medically actionable for participants and families but are not associated with the participant's primary diagnosis. These variants are called secondary findings (SFs). According to the literature, there is no report of the types and frequencies of SFs in a large pediatric cohort which includes substantial African-American participants. We sought to investigate the types (including American College of Medical Genetics and Genomics [ACMG] and non-ACMG recommended gene lists), frequencies, and rates of SFs, as well as the effects of SF disclosure on the participants and families of a large pediatric cohort at the Center for Applied Genomics at The Children’s Hospital of Philadelphia (CHOP).

Published
2024
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26. Mutations inSPECC1L, encoding sperm antigen with calponin homology and coiled-coil domains 1-like, are found in some cases of autosomal dominant Opitz G/BBB syndrome

Author

Kruszka, Paul, primary, Li, Dong, additional, Harr, Margaret H, additional, Wilson, Nathan R, additional, Swarr, Daniel, additional, McCormick, Elizabeth M, additional, Chiavacci, Rosetta M, additional, Li, Mindy, additional, Martinez, Ariel F, additional, Hart, Rachel A, additional, McDonald-McGinn, Donna M, additional, Deardorff, Matthew A, additional, Falk, Marni J, additional, Allanson, Judith E, additional, Hudson, Cindy, additional, Johnson, John P, additional, Saadi, Irfan, additional, Hakonarson, Hakon, additional, Muenke, Maximilian, additional, and Zackai, Elaine H, additional

Published
2014
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27. De Novo Truncating Mutations in AHDC1 in Individuals with Syndromic Expressive Language Delay, Hypotonia, and Sleep Apnea

Author

Xia, Fan, primary, Bainbridge, Matthew N., additional, Tan, Tiong Yang, additional, Wangler, Michael F., additional, Scheuerle, Angela E., additional, Zackai, Elaine H., additional, Harr, Margaret H., additional, Sutton, V. Reid, additional, Nalam, Roopa L., additional, Zhu, Wenmiao, additional, Nash, Margot, additional, Ryan, Monique M., additional, Yaplito-Lee, Joy, additional, Hunter, Jill V., additional, Deardorff, Matthew A., additional, Penney, Samantha J., additional, Beaudet, Arthur L., additional, Plon, Sharon E., additional, Boerwinkle, Eric A., additional, Lupski, James R., additional, Eng, Christine M., additional, Muzny, Donna M., additional, Yang, Yaping, additional, and Gibbs, Richard A., additional

Published
2014
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28. Spliceosome malfunction causes neurodevelopmental disorders with overlapping features.

Author

Li D, Wang Q, Bayat A, Battig MR, Zhou Y, Bosch DG, van Haaften G, Granger L, Petersen AK, Pérez-Jurado LA, Aznar-Laín G, Aneja A, Hancarova M, Bendova S, Schwarz M, Kremlikova Pourova R, Sedlacek Z, Keena BA, March ME, Hou C, O'Connor N, Bhoj EJ, Harr MH, Lemire G, Boycott KM, Towne M, Li M, Tarnopolsky M, Brady L, Parker MJ, Faghfoury H, Parsley LK, Agolini E, Dentici ML, Novelli A, Wright M, Palmquist R, Lai K, Scala M, Striano P, Iacomino M, Zara F, Cooper A, Maarup TJ, Byler M, Lebel RR, Balci TB, Louie R, Lyons M, Douglas J, Nowak C, Afenjar A, Hoyer J, Keren B, Maas SM, Motazacker MM, Martinez-Agosto JA, Rabani AM, McCormick EM, Falk MJ, Ruggiero SM, Helbig I, Møller RS, Tessarollo L, Tomassoni Ardori F, Palko ME, Hsieh TC, Krawitz PM, Ganapathi M, Gelb BD, Jobanputra V, Wilson A, Greally J, Jacquemont S, Jizi K, Bruel AL, Quelin C, Misra VK, Chick E, Romano C, Greco D, Arena A, Morleo M, Nigro V, Seyama R, Uchiyama Y, Matsumoto N, Taira R, Tashiro K, Sakai Y, Yigit G, Wollnik B, Wagner M, Kutsche B, Hurst AC, Thompson ML, Schmidt R, Randolph L, Spillmann RC, Shashi V, Higginbotham EJ, Cordeiro D, Carnevale A, Costain G, Khan T, Funalot B, Tran Mau-Them F, Fernandez Garcia Moya L, García-Miñaúr S, Osmond M, Chad L, Quercia N, Carrasco D, Li C, Sanchez-Valle A, Kelley M, Nizon M, Jensson BO, Sulem P, Stefansson K, Gorokhova S, Busa T, Rio M, Hadj Habdallah H, Lesieur-Sebellin M, Amiel J, Pingault V, Mercier S, Vincent M, Philippe C, Fatus-Fauconnier C, Friend K, Halligan RK, Biswas S, Rosser J, Shoubridge C, Corbett M, Barnett C, Gecz J, Leppig K, Slavotinek A, Marcelis C, Pfundt R, de Vries BB, van Slegtenhorst MA, Brooks AS, Cogne B, Rambaud T, Tümer Z, Zackai EH, Akizu N, Song Y, and Hakonarson H

Subjects
Humans, Gene Regulatory Networks, Mutation, Missense, RNA Splicing, RNA Splicing Factors genetics, Nuclear Proteins genetics, DNA Repair Enzymes genetics, Spliceosomes genetics, Neurodevelopmental Disorders genetics
Abstract

Pre-mRNA splicing is a highly coordinated process. While its dysregulation has been linked to neurological deficits, our understanding of the underlying molecular and cellular mechanisms remains limited. We implicated pathogenic variants in U2AF2 and PRPF19, encoding spliceosome subunits in neurodevelopmental disorders (NDDs), by identifying 46 unrelated individuals with 23 de novo U2AF2 missense variants (including 7 recurrent variants in 30 individuals) and 6 individuals with de novo PRPF19 variants. Eight U2AF2 variants dysregulated splicing of a model substrate. Neuritogenesis was reduced in human neurons differentiated from human pluripotent stem cells carrying two U2AF2 hyper-recurrent variants. Neural loss of function (LoF) of the Drosophila orthologs U2af50 and Prp19 led to lethality, abnormal mushroom body (MB) patterning, and social deficits, which were differentially rescued by wild-type and mutant U2AF2 or PRPF19. Transcriptome profiling revealed splicing substrates or effectors (including Rbfox1, a third splicing factor), which rescued MB defects in U2af50-deficient flies. Upon reanalysis of negative clinical exomes followed by data sharing, we further identified 6 patients with NDD who carried RBFOX1 missense variants which, by in vitro testing, showed LoF. Our study implicates 3 splicing factors as NDD-causative genes and establishes a genetic network with hierarchy underlying human brain development and function.

Published
2024
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30. Discovery of a neuromuscular syndrome caused by biallelic variants in ASCC3 .

Author

Nair D, Li D, Erdogan H, Yoon A, Harr MH, Bergant G, Peterlin B, Škrjanec Pušenjak M, Jayakar P, Pfundt R, Jansen S, McWalter K, Sidhu A, Saliganan S, Agolini E, Jacob A, Pasquier J, Arash R, Kahrizi K, Najmabadi H, Ropers HH, and Bhoj EJ

Abstract

Activating Signal Cointegrator 1 Complex, Subunit 3 (ASCC3) is part of the four-part ASC-1 transcriptional cointegrator complex. This complex includes ASCC1 (associated with spinal muscular atrophy with congenital bone fractures 2), TRIP4 (associated with spinal muscular atrophy with congenital bone fractures 1), and ASCC2 (not yet associated with human disease.) ASCC3 encodes a DNA helicase responsible for generating single-stranded DNA as part of the DNA damage response. Interestingly, ASCC3 expresses coding and non-coding isoforms, which act in opposition to balance the recovery of gene transcription after UV-induced DNA damage. Here we report the discovery of ASCC3 as the cause of a neuromuscular syndrome in seven unreported individuals from six unrelated families and updates on the one previously reported family. All the individuals share a neurologic phenotype that ranges from severe developmental delay to muscle fatigue. There appears to be genotype-phenotype correlation, as the most mildly affected individual is homozygous for a rare missense variant, while the more severely affected individuals are compound heterozygotes for a missense and a presumed loss-of-function (LOF) variant. There are no individuals with biallelic presumed LOF variants in our cohort or in gnomAD, as this genotype may not be compatible with life. In summary we report a syndrome in these eleven individuals from seven families with biallelic variants in ASCC3 ., Competing Interests: The authors declare no competing interests., (© 2021 The Author(s).)

Published
2021
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