Search

Your search keyword '"Alkuraya, Fowzan"' showing total 2,167 results
Start Over Author "Alkuraya, Fowzan"
2,167 results on '"Alkuraya, Fowzan"'

1. Biallelic NAA60 variants with impaired n-terminal acetylation capacity cause autosomal recessive primary familial brain calcifications.

Author

Chelban, Viorica, Aksnes, Henriette, Maroofian, Reza, LaMonica, Lauren, Seabra, Luis, Siggervåg, Anette, Devic, Perrine, Shamseldin, Hanan, Vandrovcova, Jana, Murphy, David, Richard, Anne-Claire, Quenez, Olivier, Bonnevalle, Antoine, Zanetti, M, Kaiyrzhanov, Rauan, Salpietro, Vincenzo, Efthymiou, Stephanie, Schottlaender, Lucia, Morsy, Heba, Scardamaglia, Annarita, Tariq, Ambreen, Pagnamenta, Alistair, Pennavaria, Ajia, Krogstad, Liv, Bekkelund, Åse, Caiella, Alessia, Glomnes, Nina, Brønstad, Kirsten, Tury, Sandrine, Moreno De Luca, Andrés, Boland-Auge, Anne, Olaso, Robert, Deleuze, Jean-François, Anheim, Mathieu, Cretin, Benjamin, Vona, Barbara, Alajlan, Fahad, Abdulwahab, Firdous, Battini, Jean-Luc, İpek, Rojan, Bauer, Peter, Zifarelli, Giovanni, Gungor, Serdal, Kurul, Semra, Lochmuller, Hanns, Daas, Sahar, Fakhro, Khalid, Gómez-Pascual, Alicia, Botía, Juan, Wood, Nicholas, Horvath, Rita, Ernst, Andreas, Rothman, James, McEntagart, Meriel, Crow, Yanick, Alkuraya, Fowzan, Nicolas, Gaël, Arnesen, Thomas, and Houlden, Henry

Subjects
Humans, Acetylation, Brain, Brain Diseases, Inheritance Patterns, Mutation, Phosphates, Sodium-Phosphate Cotransporter Proteins, Type III
Abstract

Primary familial brain calcification (PFBC) is characterized by calcium deposition in the brain, causing progressive movement disorders, psychiatric symptoms, and cognitive decline. PFBC is a heterogeneous disorder currently linked to variants in six different genes, but most patients remain genetically undiagnosed. Here, we identify biallelic NAA60 variants in ten individuals from seven families with autosomal recessive PFBC. The NAA60 variants lead to loss-of-function with lack of protein N-terminal (Nt)-acetylation activity. We show that the phosphate importer SLC20A2 is a substrate of NAA60 in vitro. In cells, loss of NAA60 caused reduced surface levels of SLC20A2 and a reduction in extracellular phosphate uptake. This study establishes NAA60 as a causal gene for PFBC, provides a possible biochemical explanation of its disease-causing mechanisms and underscores NAA60-mediated Nt-acetylation of transmembrane proteins as a fundamental process for healthy neurobiological functioning.

Published
2024

3. ARF1-related disorder: phenotypic and molecular spectrum.

Author

de Sainte Agathe, Jean-Madeleine, Pode-Shakked, Ben, Naudion, Sophie, Michaud, Vincent, Arveiler, Benoit, Fergelot, Patricia, Delmas, Jean, Keren, Boris, Poirsier, Céline, Alkuraya, Fowzan, Tabarki, Brahim, Bend, Eric, Davis, Kellie, Bebin, Martina, Thompson, Michelle, Bryant, Emily, Wagner, Matias, Hannibal, Iris, Lenberg, Jerica, Krenn, Martin, Wigby, Kristen, Friedman, Jennifer, Iascone, Maria, Cereda, Anna, Miao, Térence, LeGuern, Eric, Sherr, Elliott, Caluseriu, Oana, Tidwell, Timothy, Bayrak-Toydemir, Pinar, Hagedorn, Caroline, Brugger, Melanie, Vill, Katharina, Morneau-Jacob, Francois-Dominique, Chung, Wendy, Weaver, Kathryn, Owens, Joshua, Husami, Ammar, Chaudhari, Bimal, Stone, Brandon, Burns, Katie, Li, Rachel, de Lange, Iris, Biehler, Margaux, Ginglinger, Emmanuelle, Gérard, Bénédicte, Stottmann, Rolf, Trimouille, Aurélien, and Argilli, Emanuela

Subjects
epilepsy, human genetics, sequence analysis, DNA, Humans, Brain, Genotype, Intellectual Disability, Microcephaly, Periventricular Nodular Heterotopia, Phenotype, Seizures
Abstract

PURPOSE: ARF1 was previously implicated in periventricular nodular heterotopia (PVNH) in only five individuals and systematic clinical characterisation was not available. The aim of this study is to provide a comprehensive description of the phenotypic and genotypic spectrum of ARF1-related neurodevelopmental disorder. METHODS: We collected detailed phenotypes of an international cohort of individuals (n=17) with ARF1 variants assembled through the GeneMatcher platform. Missense variants were structurally modelled, and the impact of several were functionally validated. RESULTS: De novo variants (10 missense, 1 frameshift, 1 splice altering resulting in 9 residues insertion) in ARF1 were identified among 17 unrelated individuals. Detailed phenotypes included intellectual disability (ID), microcephaly, seizures and PVNH. No specific facial characteristics were consistent across all cases, however microretrognathia was common. Various hearing and visual defects were recurrent, and interestingly, some inflammatory features were reported. MRI of the brain frequently showed abnormalities consistent with a neuronal migration disorder. CONCLUSION: We confirm the role of ARF1 in an autosomal dominant syndrome with a phenotypic spectrum including severe ID, microcephaly, seizures and PVNH due to impaired neuronal migration.

Published
2023

4. BRAT1-related disorders: phenotypic spectrum and phenotype-genotype correlations from 97 patients.

Author

Engel, Camille, Valence, Stéphanie, Delplancq, Geoffroy, Maroofian, Reza, Accogli, Andrea, Agolini, Emanuele, Alkuraya, Fowzan, Baglioni, Valentina, Bagnasco, Irene, Becmeur-Lefebvre, Mathilde, Bertini, Enrico, Borggraefe, Ingo, Brischoux-Boucher, Elise, Bruel, Ange-Line, Brusco, Alfredo, Bubshait, Dalal, Cabrol, Christelle, Cilio, Maria, Cornet, Marie-Coralie, Coubes, Christine, Danhaive, Olivier, Delague, Valérie, Denommé-Pichon, Anne-Sophie, Di Giacomo, Marilena, Doco-Fenzy, Martine, Engels, Hartmut, Cremer, Kirsten, Gérard, Marion, Gleeson, Joseph, Heron, Delphine, Goffeney, Joanna, Guimier, Anne, Harms, Frederike, Houlden, Henry, Iacomino, Michele, Kaiyrzhanov, Rauan, Kamien, Benjamin, Karimiani, Ehsan, Kraus, Dror, Kuentz, Paul, Kutsche, Kerstin, Lederer, Damien, Massingham, Lauren, Mignot, Cyril, Morris-Rosendahl, Déborah, Nagarajan, Lakshmi, Odent, Sylvie, Ormières, Clothilde, Partlow, Jennifer, Pasquier, Laurent, Penney, Lynette, Philippe, Christophe, Piccolo, Gianluca, Poulton, Cathryn, Putoux, Audrey, Rio, Marlène, Rougeot, Christelle, Salpietro, Vincenzo, Scheffer, Ingrid, Schneider, Amy, Srivastava, Siddharth, Straussberg, Rachel, Striano, Pasquale, Valente, Enza, Venot, Perrine, Villard, Laurent, Vitobello, Antonio, Wagner, Johanna, Wagner, Matias, Zaki, Maha, Zara, Federizo, Lesca, Gaetan, Yassaee, Vahid, Miryounesi, Mohammad, Hashemi-Gorji, Farzad, Beiraghi, Mehran, Ashrafzadeh, Farah, Galehdari, Hamid, Walsh, Christopher, Novelli, Antonio, Tacke, Moritz, Sadykova, Dinara, Maidyrov, Yerdan, Koneev, Kairgali, Shashkin, Chingiz, Capra, Valeria, Zamani, Mina, Van Maldergem, Lionel, Burglen, Lydie, and Piard, Juliette

Subjects
Humans, Nuclear Proteins, Epilepsy, Phenotype, Genotype, Genetic Association Studies, Neurodegenerative Diseases, Atrophy
Abstract

BRAT1 biallelic variants are associated with rigidity and multifocal seizure syndrome, lethal neonatal (RMFSL), and neurodevelopmental disorder associating cerebellar atrophy with or without seizures syndrome (NEDCAS). To date, forty individuals have been reported in the literature. We collected clinical and molecular data from 57 additional cases allowing us to study a large cohort of 97 individuals and draw phenotype-genotype correlations. Fifty-nine individuals presented with BRAT1-related RMFSL phenotype. Most of them had no psychomotor acquisition (100%), epilepsy (100%), microcephaly (91%), limb rigidity (93%), and died prematurely (93%). Thirty-eight individuals presented a non-lethal phenotype of BRAT1-related NEDCAS phenotype. Seventy-six percent of the patients in this group were able to walk and 68% were able to say at least a few words. Most of them had cerebellar ataxia (82%), axial hypotonia (79%) and cerebellar atrophy (100%). Genotype-phenotype correlations in our cohort revealed that biallelic nonsense, frameshift or inframe deletion/insertion variants result in the severe BRAT1-related RMFSL phenotype (46/46; 100%). In contrast, genotypes with at least one missense were more likely associated with NEDCAS (28/34; 82%). The phenotype of patients carrying splice variants was variable: 41% presented with RMFSL (7/17) and 59% with NEDCAS (10/17).

Published
2023

5. Loss of symmetric cell division of apical neural progenitors drives DENND5A-related developmental and epileptic encephalopathy

Author

Banks, Emily, Francis, Vincent, Lin, Sheng-Jia, Kharfallah, Fares, Fonov, Vladimir, Lévesque, Maxime, Han, Chanshuai, Kulasekaran, Gopinath, Tuznik, Marius, Bayati, Armin, Al-Khater, Reem, Alkuraya, Fowzan S., Argyriou, Loukas, Babaei, Meisam, Bahlo, Melanie, Bakhshoodeh, Behnoosh, Barr, Eileen, Bartik, Lauren, Bassiony, Mahmoud, Bertrand, Miriam, Braun, Dominique, Buchert, Rebecca, Budetta, Mauro, Cadieux-Dion, Maxime, Calame, Daniel G., Cope, Heidi, Cushing, Donna, Efthymiou, Stephanie, Elmaksoud, Marwa Abd, El Said, Huda G., Froukh, Tawfiq, Gill, Harinder K., Gleeson, Joseph G., Gogoll, Laura, Goh, Elaine S.-Y., Gowda, Vykuntaraju K., Haack, Tobias B., Hashem, Mais O., Hauser, Stefan, Hoffman, Trevor L., Hogue, Jacob S., Hosokawa, Akimoto, Houlden, Henry, Huang, Kevin, Huynh, Stephanie, Karimiani, Ehsan G., Kaulfuß, Silke, Korenke, G. Christoph, Kritzer, Amy, Lee, Hane, Lupski, James R., Marco, Elysa J., McWalter, Kirsty, Minassian, Arakel, Minassian, Berge A., Murphy, David, Neira-Fresneda, Juanita, Northrup, Hope, Nyaga, Denis M., Oehl-Jaschkowitz, Barbara, Osmond, Matthew, Person, Richard, Pehlivan, Davut, Petree, Cassidy, Sadleir, Lynette G., Saunders, Carol, Schoels, Ludger, Shashi, Vandana, Spillmann, Rebecca C., Srinivasan, Varunvenkat M., Torbati, Paria N., Tos, Tulay, Zaki, Maha S., Zhou, Dihong, Zweier, Christiane, Trempe, Jean-François, Durcan, Thomas M., Gan-Or, Ziv, Avoli, Massimo, Alves, Cesar, Varshney, Gaurav K., Maroofian, Reza, Rudko, David A., and McPherson, Peter S.

Published
2024
Full Text
View/download PDF

11. Primate-specific ZNF808 is essential for pancreatic development in humans

Author

De Franco, Elisa, Owens, Nick D. L., Montaser, Hossam, Wakeling, Matthew N., Saarimäki-Vire, Jonna, Triantou, Athina, Ibrahim, Hazem, Balboa, Diego, Caswell, Richard C., Jennings, Rachel E., Kvist, Jouni A., Johnson, Matthew B., Muralidharan, Sachin, Ellard, Sian, Wright, Caroline F., Maddirevula, Sateesh, Alkuraya, Fowzan S., Hanley, Neil A., Flanagan, Sarah E., Otonkoski, Timo, Hattersley, Andrew T., and Imbeault, Michael

Published
2023
Full Text
View/download PDF

12. Functional and clinical studies reveal pathophysiological complexity of CLCN4-related neurodevelopmental condition.

Author

Palmer, Elizabeth, Pusch, Michael, Picollo, Alessandra, Forwood, Caitlin, Nguyen, Matthew, Suckow, Vanessa, Gibbons, Jessica, Hoff, Alva, Sigfrid, Lisa, Megarbane, Andre, Nizon, Mathilde, Cogné, Benjamin, Beneteau, Claire, Alkuraya, Fowzan, Chedrawi, Aziza, Hashem, Mais, Stamberger, Hannah, Weckhuysen, Sarah, Vanlander, Arnaud, Ceulemans, Berten, Rajagopalan, Sulekha, Nunn, Kenneth, Arpin, Stéphanie, Raynaud, Martine, Motter, Constance, Ward-Melver, Catherine, Janssens, Katrien, Meuwissen, Marije, Beysen, Diane, Dikow, Nicola, Grimmel, Mona, Haack, Tobias, Clement, Emma, McTague, Amy, Hunt, David, Townshend, Sharron, Ward, Michelle, Richards, Linda, Simons, Cas, Costain, Gregory, Dupuis, Lucie, Mendoza-Londono, Roberto, Dudding-Byth, Tracy, Boyle, Jackie, Saunders, Carol, Fleming, Emily, El Chehadeh, Salima, Spitz, Marie-Aude, Piton, Amelie, Gerard, Bénédicte, Abi Warde, Marie-Thérèse, Rea, Gillian, McKenna, Caoimhe, Douzgou, Sofia, Banka, Siddharth, Akman, Cigdem, Bain, Jennifer, Sands, Tristan, Wilson, Golder, Silvertooth, Erin, Miller, Lauren, Lederer, Damien, Sachdev, Rani, Macintosh, Rebecca, Monestier, Olivier, Karadurmus, Deniz, Collins, Felicity, Carter, Melissa, Rohena, Luis, Willemsen, Marjolein, Ockeloen, Charlotte, Pfundt, Rolph, Kroft, Sanne, Field, Michael, Laranjeira, Francisco, Fortuna, Ana, Soares, Ana, Michaud, Vincent, Naudion, Sophie, Golla, Sailaja, Weaver, David, Bird, Lynne, Friedman, Jennifer, Clowes, Virginia, Joss, Shelagh, Pölsler, Laura, Campeau, Philippe, Blazo, Maria, Bijlsma, Emilia, Rosenfeld, Jill, Beetz, Christian, Powis, Zöe, McWalter, Kirsty, Brandt, Tracy, Torti, Erin, Mathot, Mikaël, Mohammad, Shekeeb, Armstrong, Ruth, and Kalscheuer, Vera

Subjects
Male, Female, Humans, Neurodevelopmental Disorders, Mutation, Missense, Genes, X-Linked, Phenotype, Chloride Channels
Abstract

Missense and truncating variants in the X-chromosome-linked CLCN4 gene, resulting in reduced or complete loss-of-function (LOF) of the encoded chloride/proton exchanger ClC-4, were recently demonstrated to cause a neurocognitive phenotype in both males and females. Through international clinical matchmaking and interrogation of public variant databases we assembled a database of 90 rare CLCN4 missense variants in 90 families: 41 unique and 18 recurrent variants in 49 families. For 43 families, including 22 males and 33 females, we collated detailed clinical and segregation data. To confirm causality of variants and to obtain insight into disease mechanisms, we investigated the effect on electrophysiological properties of 59 of the variants in Xenopus oocytes using extended voltage and pH ranges. Detailed analyses revealed new pathophysiological mechanisms: 25% (15/59) of variants demonstrated LOF, characterized by a shift of the voltage-dependent activation to more positive voltages, and nine variants resulted in a toxic gain-of-function, associated with a disrupted gate allowing inward transport at negative voltages. Functional results were not always in line with in silico pathogenicity scores, highlighting the complexity of pathogenicity assessment for accurate genetic counselling. The complex neurocognitive and psychiatric manifestations of this condition, and hitherto under-recognized impacts on growth, gastrointestinal function, and motor control are discussed. Including published cases, we summarize features in 122 individuals from 67 families with CLCN4-related neurodevelopmental condition and suggest future research directions with the aim of improving the integrated care for individuals with this diagnosis.

Published
2023

13. Large-scale genomic investigation of pediatric cholestasis reveals a novel hepatorenal ciliopathy caused by PSKH1 mutations

Author

Maddirevula, Sateesh, Shagrani, Mohammad, Ji, Ae-Ri, Horne, Christopher R., Young, Samuel N., Mather, Lucy J., Alqahtani, Mashael, McKerlie, Colin, Wood, Geoffrey, Potter, Paul K., Abdulwahab, Firdous, AlSheddi, Tarfa, van der Woerd, Wendy L., van Gassen, Koen L.I., AlBogami, Dalal, Kumar, Kishwer, Muhammad Akhtar, Ali Syed, Binomar, Hiba, Almanea, Hadeel, Faqeih, Eissa, Fuchs, Sabine A., Scott, John W., Murphy, James M., and Alkuraya, Fowzan S.

Published
2024
Full Text
View/download PDF

15. Clinical and neuroradiological spectrum of biallelic variants in NOTCH3

Author

Iruzubieta, Pablo, Alves, César Augusto Pinheiro Ferreira, Al Shamsi, Aisha M., ElGhazali, Gehad, Zaki, Maha S., Pinelli, Lorenzo, Lopergolo, Diego, Cho, Bernard P.H., Jolly, Amy A., Al Futaisi, Amna, Al-Amrani, Fatema, Galli, Jessica, Fazzi, Elisa, Vulin, Katarina, Barajas-Olmos, Francisco, Hengel, Holger, Aljamal, Bayan Mohammed, Nasr, Vahideh, Assarzadegan, Farhad, Ragno, Michele, Trojano, Luigi, Ojeda, Naomi Meave, Çakar, Arman, Bianchi, Silvia, Pescini, Francesca, Poggesi, Anna, Al Tenalji, Amal, Aziz, Majid, Mohammad, Rahema, Chedrawi, Aziza, De Stefano, Nicola, Zifarelli, Giovanni, Schöls, Ludger, Haack, Tobias B., Rebelo, Adriana, Zuchner, Stephan, Koc, Filiz, Griffiths, Lyn R., Orozco, Lorena, Helmes, Karla García, Babaei, Meisam, Bauer, Peter, Chan Jeong, Won, Karimiani, Ehsan Ghayoor, Schmidts, Miriam, Gleeson, Joseph G., Chung, Wendy K., Alkuraya, Fowzan Sami, Shalbafan, Bita, Markus, Hugh S., Houlden, Henry, and Maroofian, Reza

Published
2024
Full Text
View/download PDF

17. A founder DBR1 variant causes a lethal form of congenital ichthyosis

Author

Shamseldin, Hanan E., Sadagopan, Mukunth, Martini, Javier, Al-Ali, Ruslan, Radefeldt, Mandy, Ataei, Mojgan, Lemke, Sabrina, Rahbeeni, Zuhair, Al Mutairi, Fuad, Ababneh, Faroug, AlRukban, Hadeel A., Abdulwahab, Firdous, Alhajj, Saleh Mohammed, Bauer, Peter, Bertoli-Avella, Aida, and Alkuraya, Fowzan S.

Published
2023
Full Text
View/download PDF

18. PhenoScore quantifies phenotypic variation for rare genetic diseases by combining facial analysis with other clinical features using a machine-learning framework

Author

Dingemans, Alexander J. M., Hinne, Max, Truijen, Kim M. G., Goltstein, Lia, van Reeuwijk, Jeroen, de Leeuw, Nicole, Schuurs-Hoeijmakers, Janneke, Pfundt, Rolph, Diets, Illja J., den Hoed, Joery, de Boer, Elke, Coenen-van der Spek, Jet, Jansen, Sandra, van Bon, Bregje W., Jonis, Noraly, Ockeloen, Charlotte W., Vulto-van Silfhout, Anneke T., Kleefstra, Tjitske, Koolen, David A., Campeau, Philippe M., Palmer, Elizabeth E., Van Esch, Hilde, Lyon, Gholson J., Alkuraya, Fowzan S., Rauch, Anita, Marom, Ronit, Baralle, Diana, van der Sluijs, Pleuntje J., Santen, Gijs W. E., Kooy, R. Frank, van Gerven, Marcel A. J., Vissers, Lisenka E. L. M., and de Vries, Bert B. A.

Published
2023
Full Text
View/download PDF

19. A novel DPH5-related diphthamide-deficiency syndrome causing embryonic lethality or profound neurodevelopmental disorder

Author

Shankar, Suma P, Grimsrud, Kristin, Lanoue, Louise, Egense, Alena, Willis, Brandon, Hörberg, Johanna, AlAbdi, Mayer, Klaus, Ütkür, Koray, Monaghan, Kristin G, Krier, Joel, Stoler, Joan, Alnemer, Maha, Shankar, Prabhu R, Schaffrath, Raffael, Alkuraya, Fowzan S, Brinkmann, Ulrich, Eriksson, Leif A, Lloyd, Kent, Rauen, Katherine A, Network, Undiagnosed Diseases, Acosta, Maria T, Adam, Margaret, Adams, David R, Alvey, Justin, Amendola, Laura, Andrews, Ashley, Ashley, Euan A, Azamian, Mahshid S, Bacino, Carlos A, Bademci, Guney, Balasubramanyam, Ashok, Baldridge, Dustin, Bale, Jim, Bamshad, Michael, Barbouth, Deborah, Bayrak-Toydemir, Pinar, Beck, Anita, Beggs, Alan H, Behrens, Edward, Bejerano, Gill, Bennet, Jimmy, Berg-Rood, Beverly, Bernstein, Jonathan A, Berry, Gerard T, Bican, Anna, Bivona, Stephanie, Blue, Elizabeth, Bohnsack, John, Bonner, Devon, Botto, Lorenzo, Boyd, Brenna, Briere, Lauren C, Brokamp, Elly, Brown, Gabrielle, Burke, Elizabeth A, Burrage, Lindsay C, Butte, Manish J, Byers, Peter, Byrd, William E, Carey, John, Carrasquillo, Olveen, Cassini, Thomas, Chang, Ta Chen Peter, Chanprasert, Sirisak, Chao, Hsiao-Tuan, Clark, Gary D, Coakley, Terra R, Cobban, Laurel A, Cogan, Joy D, Coggins, Matthew, Cole, F Sessions, Colley, Heather A, Cooper, Cynthia M, Cope, Heidi, Craigen, William J, Crouse, Andrew B, Cunningham, Michael, D'Souza, Precilla, Dai, Hongzheng, Dasari, Surendra, Davis, Joie, Dayal, Jyoti G, Deardorff, Matthew, Dell'Angelica, Esteban C, Dipple, Katrina, Doherty, Daniel, Dorrani, Naghmeh, Doss, Argenia L, Douine, Emilie D, Duncan, Laura, Earl, Dawn, Eckstein, David J, Emrick, Lisa T, Eng, Christine M, Esteves, Cecilia, Falk, Marni, Fernandez, Liliana, Fieg, Elizabeth L, and Fisher, Paul G

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Genetics, Pediatric, Human Genome, 2.1 Biological and endogenous factors, Adenosine Diphosphate, Animals, Histidine, Humans, Methyltransferases, Mice, Mice, Inbred C57BL, Neurodevelopmental Disorders, Saccharomyces cerevisiae, Saccharomyces cerevisiae Proteins, Syndrome, Nonverbal neurodevelopment delays, Novel gene discovery, Precision animal modeling, Precision genomics, Translational genetics, Undiagnosed Diseases Network, Clinical Sciences, Genetics & Heredity
Abstract

PurposeDiphthamide is a post-translationally modified histidine essential for messenger RNA translation and ribosomal protein synthesis. We present evidence for DPH5 as a novel cause of embryonic lethality and profound neurodevelopmental delays (NDDs).MethodsMolecular testing was performed using exome or genome sequencing. A targeted Dph5 knockin mouse (C57BL/6Ncrl-Dph5em1Mbp/Mmucd) was created for a DPH5 p.His260Arg homozygous variant identified in 1 family. Adenosine diphosphate-ribosylation assays in DPH5-knockout human and yeast cells and in silico modeling were performed for the identified DPH5 potential pathogenic variants.ResultsDPH5 variants p.His260Arg (homozygous), p.Asn110Ser and p.Arg207Ter (heterozygous), and p.Asn174LysfsTer10 (homozygous) were identified in 3 unrelated families with distinct overlapping craniofacial features, profound NDDs, multisystem abnormalities, and miscarriages. Dph5 p.His260Arg homozygous knockin was embryonically lethal with only 1 subviable mouse exhibiting impaired growth, craniofacial dysmorphology, and multisystem dysfunction recapitulating the human phenotype. Adenosine diphosphate-ribosylation assays showed absent to decreased function in DPH5-knockout human and yeast cells. In silico modeling of the variants showed altered DPH5 structure and disruption of its interaction with eEF2.ConclusionWe provide strong clinical, biochemical, and functional evidence for DPH5 as a novel cause of embryonic lethality or profound NDDs with multisystem involvement and expand diphthamide-deficiency syndromes and ribosomopathies.

Published
2022

20. Beyond the exome: utility of long-read whole genome sequencing in exome-negative autosomal recessive diseases

Author

AlAbdi, Lama, Shamseldin, Hanan E., Khouj, Ebtissal, Helaby, Rana, Aljamal, Bayan, Alqahtani, Mashael, Almulhim, Aisha, Hamid, Halima, Hashem, Mais O., Abdulwahab, Firdous, Abouyousef, Omar, Jaafar, Amal, Alshidi, Tarfa, Al-Owain, Mohammed, Alhashem, Amal, Al Tala, Saeed, Khan, Arif O., Mardawi, Elham, Alkuraya, Hisham, Faqeih, Eissa, Afqi, Manal, Alkhalifi, Salwa, Rahbeeni, Zuhair, Hagos, Samya T., Al-Ahmadi, Wijdan, Nadeef, Seba, Maddirevula, Sateesh, Khabar, Khalid S. A., Putra, Alexander, Angelov, Angel, Park, Changsook, Reyes-Ramos, Ana M., Umer, Husen, Ullah, Ikram, Driguez, Patrick, Fukasawa, Yoshinori, Cheung, Ming Sin, Gallouzi, Imed Eddine, and Alkuraya, Fowzan S.

Published
2023
Full Text
View/download PDF

25. 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
Full Text
View/download PDF

27. Toward robust clinical genome interpretation: Developing a consistent terminology to characterize Mendelian disease-gene relationships—allelic requirement, inheritance modes, and disease mechanisms

Author

Roberts, Angharad M., DiStefano, Marina T., Riggs, Erin Rooney, Josephs, Katherine S., Alkuraya, Fowzan S., Amberger, Joanna, Amin, Mutaz, Berg, Jonathan S., Cunningham, Fiona, Eilbeck, Karen, Firth, Helen V., Foreman, Julia, Hamosh, Ada, Hay, Eleanor, Leigh, Sarah, Martin, Christa L., McDonagh, Ellen M., Perrett, Daniel, Ramos, Erin M., Robinson, Peter N., Rath, Ana, Sant, David W., Stark, Zornitza, Whiffin, Nicola, Rehm, Heidi L., and Ware, James S.

Published
2024
Full Text
View/download PDF

29. Biallelic variation in the choline and ethanolamine transporter FLVCR1 underlies a severe developmental disorder spectrum

Author

Calame, Daniel G., Wong, Jovi Huixin, Panda, Puravi, Nguyen, Dat Tuan, Leong, Nancy C.P., Sangermano, Riccardo, Patankar, Sohil G., Abdel-Hamid, Mohamed S., AlAbdi, Lama, Safwat, Sylvia, Flannery, Kyle P., Dardas, Zain, Fatih, Jawid M., Murali, Chaya, Kannan, Varun, Lotze, Timothy E., Herman, Isabella, Ammouri, Farah, Rezich, Brianna, Efthymiou, Stephanie, Alavi, Shahryar, Murphy, David, Firoozfar, Zahra, Nasab, Mahya Ebrahimi, Bahreini, Amir, Ghasemi, Majid, Haridy, Nourelhoda A., Goldouzi, Hamid Reza, Eghbal, Fatemeh, Karimiani, Ehsan Ghayoor, Begtrup, Amber, Elloumi, Houda, Srinivasan, Varunvenkat M., Gowda, Vykuntaraju K., Du, Haowei, Jhangiani, Shalini N., Coban-Akdemir, Zeynep, Marafi, Dana, Rodan, Lance, Isikay, Sedat, Rosenfeld, Jill A., Ramanathan, Subhadra, Staton, Michael, Oberg, Kerby C., Clark, Robin D., Wenman, Catharina, Loughlin, Sam, Saad, Ramy, Ashraf, Tazeen, Male, Alison, Tadros, Shereen, Boostani, Reza, Abdel-Salam, Ghada M.H., Zaki, Maha, Mardi, Ali, Hashemi-Gorji, Farzad, Abdalla, Ebtesam, Manzini, M. Chiara, Pehlivan, Davut, Posey, Jennifer E., Gibbs, Richard A., Houlden, Henry, Alkuraya, Fowzan S., Bujakowska, Kinga, Maroofian, Reza, Lupski, James R., and Nguyen, Long Nam

Published
2024
Full Text
View/download PDF

30. Clinical and genetic delineation of autosomal recessive and dominant ACTL6B-related developmental brain disorders

Author

Cali, Elisa, Quirin, Tania, Rocca, Clarissa, Efthymiou, Stephanie, Riva, Antonella, Marafi, Dana, Zaki, Maha S., Suri, Mohnish, Dominguez, Roberto, Elbendary, Hasnaa M., Alavi, Shahryar, Abdel-Hamid, Mohamed S., Morsy, Heba, Mau-Them, Frederic Tran, Nizon, Mathilde, Tesner, Pavel, Ryba, Lukáš, Zafar, Faisal, Rana, Nuzhat, Saadi, Nebal W., Firoozfar, Zahra, Gencpinar, Pinar, Unay, Bulent, Ustun, Canan, Bruel, Ange-Line, Coubes, Christine, Stefanich, Jennifer, Sezer, Ozlem, Agolini, Emanuele, Novelli, Antonio, Vasco, Gessica, Lettori, Donatella, Milh, Mathieu, Villard, Laurent, Zeidler, Shimriet, Opperman, Henry, Strehlow, Vincent, Issa, Mahmoud Y., El Khassab, Hebatallah, Chand, Prem, Ibrahim, Shahnaz, Nejad-Rashidi, Ali, Miryounesi, Mohammad, Larki, Pegah, Morrison, Jennifer, Cristian, Ingrid, Thiffault, Isabelle, Bertsch, Nicole L., Noh, Grace J., Pappas, John, Moran, Ellen, Marinakis, Nikolaos M., Traeger-Synodinos, Joanne, Hosseini, Susan, Abbaszadegan, Mohammad Reza, Caumes, Roseline, Vissers, Lisenka E.L.M., Neshatdoust, Maedeh, Montazer, Mostafa Zohour, El Fahime, Elmostafa, Canavati, Christin, Kamal, Lara, Kanaan, Moien, Askander, Omar, Voinova, Victoria, Levchenko, Olga, Haider, Shahzhad, Halbach, Sara S., Maia, Elias Rayana, Mansoor, Salehi, Vivek, Jain, Tawde, Sanjukta, Challa, Viveka Santhosh R., Gowda, Vykuntaraju K., Srinivasan, Varunvenkat M., Victor, Lucas Alves, Pinero-Banos, Benito, Hague, Jennifer, Ei-Awady, Heba Ahmed, Maria de Miranda Henriques-Souza, Adelia, Cheema, Huma Arshad, Anjum, Muhammad Nadeem, Idkaidak, Sara, Alqarajeh, Firas, Atawneh, Osama, Mor-Shaked, Hagar, Harel, Tamar, Zifarelli, Giovanni, Bauer, Peter, Kok, Fernando, Kitajima, Joao Paulo, Monteiro, Fabiola, Josahkian, Juliana, Lesca, Gaetan, Chatron, Nicolas, Ville, Dorothe, Murphy, David, Neul, Jeffrey L., Mullegama, Sureni V., Begtrup, Amber, Herman, Isabella, Mitani, Tadahiro, Posey, Jennifer E., Tay, Chee Geap, Javed, Iram, Carr, Lucinda, Kanani, Farah, Beecroft, Fiona, Hane, Lee, Abdelkreem, Elsayed, Macek, Milan, Bispo, Luciana, Elmaksoud, Marwa Abd, Hashemi-Gorji, Farzad, Pehlivan, Davut, Amor, David J., Jamra, Rami Abou, Chung, Wendy K., Ghayoor, Eshan Karimiani, Campeau, Philippe, Alkuraya, Fowzan S., Pagnamenta, Alistair T., Gleeson, Joseph, Lupski, James R., Striano, Pasquale, Moreno-De-Luca, Andres, Lafontaine, Denis L.J., Houlden, Henry, and Maroofian, Reza

Published
2024
Full Text
View/download PDF

31. Bi-allelic variants in CEP295 cause Seckel-like syndrome presenting with primary microcephaly, developmental delay, intellectual disability, short stature, craniofacial and digital abnormalities

Author

Li, Niu, Xu, Yufei, Chen, Hongzhu, Lin, Jingqi, AlAbdi, Lama, Bekheirnia, Mir Reza, Li, Guoqiang, Gofin, Yoel, Bekheirnia, Nasim, Faqeih, Eissa, Chen, Lina, Chang, Guoying, Tang, Jie, Yao, Ruen, Yu, Tingting, Wang, Xiumin, Fu, Wei, Fu, Qihua, Shen, Yiping, Alkuraya, Fowzan S., Machol, Keren, and Wang, Jian

Published
2024
Full Text
View/download PDF

34. Biallelic variants in HPDL cause pure and complicated hereditary spastic paraplegia.

Author

Wiessner, Manuela, Maroofian, Reza, Ni, Meng-Yuan, Pedroni, Andrea, Müller, Juliane S, Stucka, Rolf, Beetz, Christian, Efthymiou, Stephanie, Santorelli, Filippo M, Alfares, Ahmed A, Zhu, Changlian, Uhrova Meszarosova, Anna, Alehabib, Elham, Bakhtiari, Somayeh, Janecke, Andreas R, Otero, Maria Gabriela, Chen, Jin Yun Helen, Peterson, James T, Strom, Tim M, De Jonghe, Peter, Deconinck, Tine, De Ridder, Willem, De Winter, Jonathan, Pasquariello, Rossella, Ricca, Ivana, Alfadhel, Majid, van de Warrenburg, Bart P, Portier, Ruben, Bergmann, Carsten, Ghasemi Firouzabadi, Saghar, Jin, Sheng Chih, Bilguvar, Kaya, Hamed, Sherifa, Abdelhameed, Mohammed, Haridy, Nourelhoda A, Maqbool, Shazia, Rahman, Fatima, Anwar, Najwa, Carmichael, Jenny, Pagnamenta, Alistair, Wood, Nick W, Tran Mau-Them, Frederic, Haack, Tobias, Di Rocco, Maja, Ceccherini, Isabella, Iacomino, Michele, Zara, Federico, Salpietro, Vincenzo, Scala, Marcello, Rusmini, Marta, Xu, Yiran, Wang, Yinghong, Suzuki, Yasuhiro, Koh, Kishin, Nan, Haitian, Ishiura, Hiroyuki, Tsuji, Shoji, Lambert, Laëtitia, Schmitt, Emmanuelle, Lacaze, Elodie, Küpper, Hanna, Dredge, David, Skraban, Cara, Goldstein, Amy, Willis, Mary JH, Grand, Katheryn, Graham, John M, Lewis, Richard A, Millan, Francisca, Duman, Özgür, Dündar, Nihal, Uyanik, Gökhan, Schöls, Ludger, Nürnberg, Peter, Nürnberg, Gudrun, Catala Bordes, Andrea, Seeman, Pavel, Kuchar, Martin, Darvish, Hossein, Rebelo, Adriana, Bouçanova, Filipa, Medard, Jean-Jacques, Chrast, Roman, Auer-Grumbach, Michaela, Alkuraya, Fowzan S, Shamseldin, Hanan, Al Tala, Saeed, Rezazadeh Varaghchi, Jamileh, Najafi, Maryam, Deschner, Selina, Gläser, Dieter, Hüttel, Wolfgang, Kruer, Michael C, Kamsteeg, Erik-Jan, Takiyama, Yoshihisa, Züchner, Stephan, Baets, Jonathan, Synofzik, Matthis, Schüle, Rebecca, and Horvath, Rita

Subjects
Neurosciences, Neurodegenerative, Genetics, Clinical Research, Aetiology, 2.1 Biological and endogenous factors, Neurological, Animals, Female, Humans, Male, Mice, Mutation, Oxygenases, Pedigree, Rats, Spastic Paraplegia, Hereditary, Zebrafish, hereditary spastic paraplegia, HSP, autosomal recessive, mitochondrial disorder, HPDL, Genomics England Research Consortium, PREPARE network, Medical and Health Sciences, Psychology and Cognitive Sciences, Neurology & Neurosurgery
Abstract

Human 4-hydroxyphenylpyruvate dioxygenase-like (HPDL) is a putative iron-containing non-heme oxygenase of unknown specificity and biological significance. We report 25 families containing 34 individuals with neurological disease associated with biallelic HPDL variants. Phenotypes ranged from juvenile-onset pure hereditary spastic paraplegia to infantile-onset spasticity and global developmental delays, sometimes complicated by episodes of neurological and respiratory decompensation. Variants included bona fide pathogenic truncating changes, although most were missense substitutions. Functionality of variants could not be determined directly as the enzymatic specificity of HPDL is unknown; however, when HPDL missense substitutions were introduced into 4-hydroxyphenylpyruvate dioxygenase (HPPD, an HPDL orthologue), they impaired the ability of HPPD to convert 4-hydroxyphenylpyruvate into homogentisate. Moreover, three additional sets of experiments provided evidence for a role of HPDL in the nervous system and further supported its link to neurological disease: (i) HPDL was expressed in the nervous system and expression increased during neural differentiation; (ii) knockdown of zebrafish hpdl led to abnormal motor behaviour, replicating aspects of the human disease; and (iii) HPDL localized to mitochondria, consistent with mitochondrial disease that is often associated with neurological manifestations. Our findings suggest that biallelic HPDL variants cause a syndrome varying from juvenile-onset pure hereditary spastic paraplegia to infantile-onset spastic tetraplegia associated with global developmental delays.

Published
2021

35. 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

36. Bi-allelic loss-of-function variants in BCAS3 cause a syndromic neurodevelopmental disorder

Author

Hengel, Holger, Hannan, Shabab B, Dyack, Sarah, MacKay, Sara B, Schatz, Ulrich, Fleger, Martin, Kurringer, Andreas, Balousha, Ghassan, Ghanim, Zaid, Alkuraya, Fowzan S, Alzaidan, Hamad, Alsaif, Hessa S, Mitani, Tadahiro, Bozdogan, Sevcan, Pehlivan, Davut, Lupski, James R, Gleeson, Joseph J, Dehghani, Mohammadreza, Mehrjardi, Mohammad YV, Sherr, Elliott H, Parks, Kendall C, Argilli, Emanuela, Begtrup, Amber, Galehdari, Hamid, Balousha, Osama, Shariati, Gholamreza, Mazaheri, Neda, Malamiri, Reza A, Pagnamenta, Alistair T, Kingston, Helen, Banka, Siddharth, Jackson, Adam, Osmond, Mathew, Consortium, Care4Rare Canada, Consortium, Genomics England Research, Rieß, Angelika, Haack, Tobias B, Nägele, Thomas, Schuster, Stefanie, Hauser, Stefan, Admard, Jakob, Casadei, Nicolas, Velic, Ana, Macek, Boris, Ossowski, Stephan, Houlden, Henry, Maroofian, Reza, and Schöls, Ludger

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Biomedical and Clinical Sciences, Genetics, Human Genome, Brain Disorders, Congenital Structural Anomalies, Pediatric, Aetiology, 2.1 Biological and endogenous factors, Adolescent, Adult, Animals, Cell Movement, Child, Child, Preschool, Drosophila, Female, Fibroblasts, Humans, Infant, Loss of Function Mutation, Loss of Heterozygosity, Male, Mice, Mice, Knockout, Neoplasm Proteins, Neurodevelopmental Disorders, Pedigree, Proteome, Young Adult, Care4Rare Canada Consortium, Genomics England Research Consortium, BCAS3, UAS-Gal4, fibroblasts, global developmental delay, microcephaly, neurodevelopmental disorder, proteomics, pyramidal tract involvement, thin corpus callosum, transcriptomics, Medical and Health Sciences, Genetics & Heredity, Biological sciences, Biomedical and clinical sciences, Health sciences
Abstract

BCAS3 microtubule-associated cell migration factor (BCAS3) is a large, highly conserved cytoskeletal protein previously proposed to be critical in angiogenesis and implicated in human embryogenesis and tumorigenesis. Here, we established BCAS3 loss-of-function variants as causative for a neurodevelopmental disorder. We report 15 individuals from eight unrelated families with germline bi-allelic loss-of-function variants in BCAS3. All probands share a global developmental delay accompanied by pyramidal tract involvement, microcephaly, short stature, strabismus, dysmorphic facial features, and seizures. The human phenotype is less severe compared with the Bcas3 knockout mouse model and cannot be explained by angiogenic defects alone. Consistent with being loss-of-function alleles, we observed absence of BCAS3 in probands' primary fibroblasts. By comparing the transcriptomic and proteomic data based on probands' fibroblasts with those of the knockout mouse model, we identified similar dysregulated pathways resulting from over-representation analysis, while the dysregulation of some proposed key interactors could not be confirmed. Together with the results from a tissue-specific Drosophila loss-of-function model, we demonstrate a vital role for BCAS3 in neural tissue development.

Published
2021

38. Hypomorphic variants of SEL1L-HRD1 ER-associated degradation are associated with neurodevelopmental disorders

Author

Wang, Huilun H., Lin, Liangguang L., Li, Zexin J., Wei, Xiaoqiong, Askander, Omar, Cappuccio, Gerarda, Hashem, Mais O., Huber, Laurence, Munnich, Arnold, Alqahtani, Mashael, Pang, Qi, Burmeister, Margit, Lu, You, Poirier, Karine, Besmond, Claude, Sun, Shengyi, Brunetti-Pierri, Nicola, Alkuraya, Fowzan S., and Qi, Ling

Subjects
Child development deviations -- Development and progression -- Genetic aspects -- Causes of, Nervous system diseases -- Development and progression -- Genetic aspects -- Causes of, Endoplasmic reticulum -- Health aspects, Neurological research, Genetic variation -- Research, Developmental disabilities -- Development and progression -- Genetic aspects -- Causes of, Health care industry
Abstract

Recent studies using cell type-specific knockout mouse models have improved our understanding of the pathophysiological relevance of suppressor of lin-12-like-HMG-CoA reductase degradation 1 (SEL1L- HRD1) endoplasmic reticulum- associated (ER-associated) degradation (ERAD); however, its importance in humans remains unclear, as no disease variant has been identified. Here, we report the identification of 3 biallelic missense variants of SEL1L and HRD1 (or SYVN1) in 6 children from 3 independent families presenting with developmental delay, intellectual disability, microcephaly, facial dysmorphisms, hypotonia, and/or ataxia. These SEL1L (p.Gly585Asp, p.Met528Arg) and HRD1 (p.Pro398Leu) variants were hypomorphic and impaired ERAD function at distinct steps of ERAD, including substrate recruitment (SEL1L p.Gly585Asp), SEL1L-HRD1 complex formation (SEL1L p.Met528Arg), and HRD1 activity (HRD1 p.Pro398Leu). Our study not only provides insights into the structure-function relationship of SEL1L-HRD1 ERAD, but also establishes the importance of SEL1L-HRD1 ERAD in humans., Introduction Nascent membrane or secretory proteins are synthesized and folded in the endoplasmic reticulum (ER), which is prone to misfolding. Such misfolding may have pathogenic consequences if not cleared effectively [...]

Published
2024
Full Text
View/download PDF

39. Influence of autozygosity on common disease risk across the phenotypic spectrum

Author

Malawsky, Daniel S., van Walree, Eva, Jacobs, Benjamin M., Heng, Teng Hiang, Huang, Qin Qin, Sabir, Ataf H., Rahman, Saadia, Sharif, Saghira Malik, Khan, Ahsan, Mirkov, Maša Umićević, Kuwahara, Hiroyuki, Gao, Xin, Alkuraya, Fowzan S., Posthuma, Danielle, Newman, William G., Griffiths, Christopher J., Mathur, Rohini, van Heel, David A., Finer, Sarah, O’Connell, Jared, and Martin, Hilary C.

Published
2023
Full Text
View/download PDF

40. CRISPR REGULATION

Author

Darnovsky, Marcy, Comfort, Nathaniel, Alkuraya, Fowzan S., Newman, Stuart A., Stevens, Tina, and de Vries, Jantina

Published
2019

41. A dyadic approach to the delineation of diagnostic entities in clinical genomics

Author

Biesecker, Leslie G, Adam, Margaret P, Alkuraya, Fowzan S, Amemiya, Anne R, Bamshad, Michael J, Beck, Anita E, Bennett, James T, Bird, Lynne M, Carey, John C, Chung, Brian, Clark, Robin D, Cox, Timothy C, Curry, Cynthia, Dinulos, Mary Beth Palko, Dobyns, William B, Giampietro, Philip F, Girisha, Katta M, Glass, Ian A, Graham, John M, Gripp, Karen W, Haldeman-Englert, Chad R, Hall, Bryan D, Innes, A Micheil, Kalish, Jennifer M, Keppler-Noreuil, Kim M, Kosaki, Kenjiro, Kozel, Beth A, Mirzaa, Ghayda M, Mulvihill, John J, Nowaczyk, Malgorzata JM, Pagon, Roberta A, Retterer, Kyle, Rope, Alan F, Sanchez-Lara, Pedro A, Seaver, Laurie H, Shieh, Joseph T, Slavotinek, Anne M, Sobering, Andrew K, Stevens, Cathy A, Stevenson, David A, Tan, Tiong Yang, Tan, Wen-Hann, Tsai, Anne C, Weaver, David D, Williams, Marc S, Zackai, Elaine, and Zarate, Yuri A

Subjects
Rare Diseases, Genetics, Cystic Fibrosis, Cystic Fibrosis Transmembrane Conductance Regulator, Genetic Diseases, Inborn, Genomics, Genotype, Humans, Mutation, Phenotype, Biological Sciences, Medical and Health Sciences, Genetics & Heredity
Abstract

The delineation of disease entities is complex, yet recent advances in the molecular characterization of diseases provide opportunities to designate diseases in a biologically valid manner. Here, we have formalized an approach to the delineation of Mendelian genetic disorders that encompasses two distinct but inter-related concepts: (1) the gene that is mutated and (2) the phenotypic descriptor, preferably a recognizably distinct phenotype. We assert that only by a combinatorial or dyadic approach taking both of these attributes into account can a unitary, distinct genetic disorder be designated. We propose that all Mendelian disorders should be designated as "GENE-related phenotype descriptor" (e.g., "CFTR-related cystic fibrosis"). This approach to delineating and naming disorders reconciles the complexity of gene-to-phenotype relationships in a simple and clear manner yet communicates the complexity and nuance of these relationships.

Published
2021

44. Genotype-phenotype correlations in RHOBTB2-associated neurodevelopmental disorders

Author

Langhammer, Franziska, Maroofian, Reza, Badar, Rueda, Gregor, Anne, Rochman, Michelle, Ratliff, Jeffrey B., Koopmans, Marije, Herget, Theresia, Hempel, Maja, Kortüm, Fanny, Heron, Delphine, Mignot, Cyril, Keren, Boris, Brooks, Susan, Botti, Christina, Ben-Zeev, Bruria, Argilli, Emanuela, Sherr, Elliot H., Gowda, Vykuntaraju K., Srinivasan, Varunvenkat M., Bakhtiari, Somayeh, Kruer, Michael C., Salih, Mustafa A., Kuechler, Alma, Muller, Eric A., Blocker, Karli, Kuismin, Outi, Park, Kristen L., Kochhar, Aaina, Brown, Kathleen, Ramanathan, Subhadra, Clark, Robin D., Elgizouli, Magdeldin, Melikishvili, Gia, Tabatadze, Nazhi, Stark, Zornitza, Mirzaa, Ghayda M., Ong, Jinfon, Grasshoff, Ute, Bevot, Andrea, von Wintzingerode, Lydia, Jamra, Rami A., Hennig, Yvonne, Goldenberg, Paula, Al Alam, Chadi, Charif, Majida, Boulouiz, Redouane, Bellaoui, Mohammed, Amrani, Rim, Al Mutairi, Fuad, Tamim, Abdullah M., Abdulwahab, Firdous, Alkuraya, Fowzan S., Khouj, Ebtissal M., Alvi, Javeria R., Sultan, Tipu, Hashemi, Narges, Karimiani, Ehsan G., Ashrafzadeh, Farah, Imannezhad, Shima, Efthymiou, Stephanie, Houlden, Henry, Sticht, Heinrich, and Zweier, Christiane

Published
2023
Full Text
View/download PDF

45. Genotypic and phenotypic spectrum of infantile liver failure due to pathogenic TRMU variants

Author

Vogel, Georg F., Mozer-Glassberg, Yael, Landau, Yuval E., Schlieben, Lea D., Prokisch, Holger, Feichtinger, René G., Mayr, Johannes A., Brennenstuhl, Heiko, Schröter, Julian, Pechlaner, Agnes, Alkuraya, Fowzan S., Baker, Joshua J., Barcia, Giulia, Baric, Ivo, Braverman, Nancy, Burnyte, Birute, Christodoulou, John, Ciara, Elzbieta, Coman, David, Das, Anibh M., Darin, Niklas, Della Marina, Adela, Distelmaier, Felix, Eklund, Erik A., Ersoy, Melike, Fang, Weiyan, Gaignard, Pauline, Ganetzky, Rebecca D., Gonzales, Emmanuel, Howard, Caoimhe, Hughes, Joanne, Konstantopoulou, Vassiliki, Kose, Melis, Kerr, Marina, Khan, Aneal, Lenz, Dominic, McFarland, Robert, Margolis, Merav Gil, Morrison, Kevin, Müller, Thomas, Murayama, Kei, Nicastro, Emanuele, Pennisi, Alessandra, Peters, Heidi, Piekutowska-Abramczuk, Dorota, Rötig, Agnès, Santer, René, Scaglia, Fernando, Schiff, Manuel, Shagrani, Mohmmad, Sharrard, Mark, Soler-Alfonso, Claudia, Staufner, Christian, Storey, Imogen, Stormon, Michael, Taylor, Robert W., Thorburn, David R., Teles, Elisa Leao, Wang, Jian-She, Weghuber, Daniel, and Wortmann, Saskia

Published
2023
Full Text
View/download PDF

46. A novel truncating variant in ring finger protein 113A (RNF113A) confirms the association of this gene with X‐linked trichothiodystrophy

Author

Mendelsohn, Bryce A, Beleford, Daniah T, Abu‐El‐Haija, Aya, Alsaleh, Norah S, Rahbeeni, Zuhair, Martin, Pierre‐Marie, Rego, Shannon, Huang, Alyssa, Capodanno, Gina, Shieh, Joseph T, Van Ziffle, Jessica, Risch, Neil, Alkuraya, Fowzan S, and Slavotinek, Anne M

Subjects
Pediatric, Rare Diseases, Brain Disorders, Congenital Structural Anomalies, Aetiology, 2.1 Biological and endogenous factors, Child, Child, Preschool, DNA-Binding Proteins, Female, Genetic Association Studies, Genetic Diseases, X-Linked, Genetic Predisposition to Disease, Humans, Male, Mutation, Trichothiodystrophy Syndromes, X Chromosome Inactivation, RNF113A, spliceosome, trichothiodystrophy, zinc finger, RNF113A, Genetics, Clinical Sciences
Abstract

We describe an 11-year old boy with severe global developmental delays, failure to thrive and growth retardation, refractory seizures with recurrent status epilepticus, hypogammaglobulinemia, hypergonadotropic hypogonadism, and duodenal strictures. He had facial and skin findings compatible with trichothiodystrophy, including sparse and brittle hair, thin eyebrows, and dry skin. Exome sequencing showed a hemizygous, truncating variant in RNF113A, c.903_910delGCAGACCA, predicting p.(Gln302fs*12), that was inherited from his mother. Although his clinical features overlap closely with features described in the two previously reported male first cousins with RNF113A loss of function mutations, the duodenal strictures seen in this patient have not been reported. Interestingly, the patient's mother had short stature and 100% skewed X-inactivation as seen in other obligate female carriers. A second male with developmental delays, microcephaly, seizures, ambiguous genitalia, and facial anomalies that included sparse and brittle hair, thin eyebrows and dry skin was recently reported to have c.897_898delTG, predicting p.(Cys299*) in RNF113A and we provide additional clinical details for this patient. This report further supports deleterious variants in RNF113A as a cause of a novel trichothiodystrophy syndrome.

Published
2020

47. Bi-allelic Variants in RALGAPA1 Cause Profound Neurodevelopmental Disability, Muscular Hypotonia, Infantile Spasms, and Feeding Abnormalities.

Author

Wagner, Matias, Skorobogatko, Yuliya, Pode-Shakked, Ben, Powell, Cynthia, Alhaddad, Bader, Seibt, Annette, Barel, Ortal, Heimer, Gali, Hoffmann, Chen, Demmer, Laurie, Perilla-Young, Yezmin, Remke, Marc, Wieczorek, Dagmar, Navaratnarajah, Tharsini, Lichtner, Peter, Klee, Dirk, Shamseldin, Hanan, Al Mutairi, Fuad, Mayatepek, Ertan, Strom, Tim, Meitinger, Thomas, Alkuraya, Fowzan, Anikster, Yair, Distelmaier, Felix, and Saltiel, Alan

Subjects
GARNL1, RalA signaling, TULIP1, West syndrome, epilepsy, muscular hypotonia, neurodevelopmental disorder, Alleles, Cell Movement, Cell Proliferation, Child, Preschool, Family, Feeding and Eating Disorders, Female, GTPase-Activating Proteins, Humans, Infant, Male, Muscle Hypotonia, Mutation, Nerve Tissue Proteins, Neurodevelopmental Disorders, Phenotype, Spasms, Infantile
Abstract

Ral (Ras-like) GTPases play an important role in the control of cell migration and have been implicated in Ras-mediated tumorigenicity. Recently, variants in RALA were also described as a cause of intellectual disability and developmental delay, indicating the relevance of this pathway to neuropediatric diseases. Here, we report the identification of bi-allelic variants in RALGAPA1 (encoding Ral GTPase activating protein catalytic alpha subunit 1) in four unrelated individuals with profound neurodevelopmental disability, muscular hypotonia, feeding abnormalities, recurrent fever episodes, and infantile spasms . Dysplasia of corpus callosum with focal thinning of the posterior part and characteristic facial features appeared to be unifying findings. RalGAPA1 was absent in the fibroblasts derived from two affected individuals suggesting a loss-of-function effect of the RALGAPA1 variants. Consequently, RalA activity was increased in these cell lines, which is in keeping with the idea that RalGAPA1 deficiency causes a constitutive activation of RalA. Additionally, levels of RalGAPB, a scaffolding subunit of the RalGAP complex, were dramatically reduced, indicating a dysfunctional RalGAP complex. Moreover, RalGAPA1 deficiency clearly increased cell-surface levels of lipid raft components in detached fibroblasts, which might indicate that anchorage-dependence of cell growth signaling is disturbed. Our findings indicate that the dysregulation of the RalA pathway has an important impact on neuronal function and brain development. In light of the partially overlapping phenotype between RALA- and RALGAPA1-associated diseases, it appears likely that dysregulation of the RalA signaling pathway leads to a distinct group of genetic syndromes that we suggest could be named RALopathies.

Published
2020

48. Loss-of-function mutations in UDP-Glucose 6-Dehydrogenase cause recessive developmental epileptic encephalopathy.

Author

Hengel, Holger, Bosso-Lefèvre, Célia, Grady, George, Szenker-Ravi, Emmanuelle, Li, Hankun, Pierce, Sarah, Lebigot, Élise, Tan, Thong-Teck, Eio, Michelle Y, Narayanan, Gunaseelan, Utami, Kagistia Hana, Yau, Monica, Handal, Nader, Deigendesch, Werner, Keimer, Reinhard, Marzouqa, Hiyam M, Gunay-Aygun, Meral, Muriello, Michael J, Verhelst, Helene, Weckhuysen, Sarah, Mahida, Sonal, Naidu, Sakkubai, Thomas, Terrence G, Lim, Jiin Ying, Tan, Ee Shien, Haye, Damien, Willemsen, Michèl AAP, Oegema, Renske, Mitchell, Wendy G, Pierson, Tyler Mark, Andrews, Marisa V, Willing, Marcia C, Rodan, Lance H, Barakat, Tahsin Stefan, van Slegtenhorst, Marjon, Gavrilova, Ralitza H, Martinelli, Diego, Gilboa, Tal, Tamim, Abdullah M, Hashem, Mais O, AlSayed, Moeenaldeen D, Abdulrahim, Maha M, Al-Owain, Mohammed, Awaji, Ali, Mahmoud, Adel AH, Faqeih, Eissa A, Asmari, Ali Al, Algain, Sulwan M, Jad, Lamyaa A, Aldhalaan, Hesham M, Helbig, Ingo, Koolen, David A, Riess, Angelika, Kraegeloh-Mann, Ingeborg, Bauer, Peter, Gulsuner, Suleyman, Stamberger, Hannah, Ng, Alvin Yu Jin, Tang, Sha, Tohari, Sumanty, Keren, Boris, Schultz-Rogers, Laura E, Klee, Eric W, Barresi, Sabina, Tartaglia, Marco, Mor-Shaked, Hagar, Maddirevula, Sateesh, Begtrup, Amber, Telegrafi, Aida, Pfundt, Rolph, Schüle, Rebecca, Ciruna, Brian, Bonnard, Carine, Pouladi, Mahmoud A, Stewart, James C, Claridge-Chang, Adam, Lefeber, Dirk J, Alkuraya, Fowzan S, Mathuru, Ajay S, Venkatesh, Byrappa, Barycki, Joseph J, Simpson, Melanie A, Jamuar, Saumya S, Schöls, Ludger, and Reversade, Bruno

Subjects
Organoids, Animals, Zebrafish, Humans, Epilepsy, Syndrome, Oxidoreductases, Pedigree, Kinetics, Genes, Recessive, Alleles, Adolescent, Child, Child, Preschool, Infant, Female, Male, Protein Domains, Loss of Function Mutation, Preschool, Genes, Recessive
Abstract

Developmental epileptic encephalopathies are devastating disorders characterized by intractable epileptic seizures and developmental delay. Here, we report an allelic series of germline recessive mutations in UGDH in 36 cases from 25 families presenting with epileptic encephalopathy with developmental delay and hypotonia. UGDH encodes an oxidoreductase that converts UDP-glucose to UDP-glucuronic acid, a key component of specific proteoglycans and glycolipids. Consistent with being loss-of-function alleles, we show using patients' primary fibroblasts and biochemical assays, that these mutations either impair UGDH stability, oligomerization, or enzymatic activity. In vitro, patient-derived cerebral organoids are smaller with a reduced number of proliferating neuronal progenitors while mutant ugdh zebrafish do not phenocopy the human disease. Our study defines UGDH as a key player for the production of extracellular matrix components that are essential for human brain development. Based on the incidence of variants observed, UGDH mutations are likely to be a frequent cause of recessive epileptic encephalopathy.

Published
2020

49. Perinatal distress in 1p36 deletion syndrome can mimic hypoxic ischemic encephalopathy

Author

Carter, Lauren B, Battaglia, Agatino, Cherry, Athena, Manning, Melanie A, Ruzhnikov, Maura RZ, Bird, Lynne M, Dowsett, Leah, Graham, John M, Alkuraya, Fowzan S, Hashem, Mais, Dinulos, Mary Beth, Vallee, Stephanie, Adam, Margaret P, Glass, Ian, Beck, Anita E, Stevens, Cathy A, Zackai, Elaine, McDougall, Carey, Keena, Beth, Peron, Angela, Vignoli, Aglaia, Seaver, Laurie H, Slavin, Thomas P, and Hudgins, Louanne

Subjects
Perinatal Period - Conditions Originating in Perinatal Period, Infant Mortality, Epilepsy, Neurosciences, Clinical Research, Pediatric, Brain Disorders, Neurodegenerative, Physical Injury - Accidents and Adverse Effects, Intellectual and Developmental Disabilities (IDD), Preterm, Low Birth Weight and Health of the Newborn, Aetiology, 2.1 Biological and endogenous factors, Reproductive health and childbirth, Mental health, Neurological, Good Health and Well Being, Chromosome Deletion, Chromosome Disorders, Chromosomes, Human, Pair 1, Diagnosis, Differential, Female, Humans, Hypoxia-Ischemia, Brain, Infant, Newborn, Male, Phenotype, Pregnancy, Psychological Distress, 1p36, distress, hypoxic ischemic encephalopathy, Genetics, Clinical Sciences
Abstract

1p36 deletion syndrome is a well-described condition with a recognizable phenotype, including cognitive impairment, seizures, and structural brain anomalies such as periventricular leukomalacia (PVL). In a large series of these individuals by Battaglia et al., "birth history was notable in 50% of the cases for varying degrees of perinatal distress." Given the potential for perinatal distress, seizures and PVL, we questioned if this disorder has clinical overlap with hypoxic ischemic encephalopathy (HIE). We reviewed the medical records of 69 individuals with 1p36 deletion to clarify the perinatal phenotype of this disorder and determine if there is evidence of perinatal distress and/or hypoxic injury. Our data provides evidence that these babies have signs of perinatal distress. The majority (59% term; 75% preterm) needed resuscitation and approximately 18% had cardiac arrest. Most had abnormal brain imaging (84% term; 73% preterm) with abnormal white matter findings in over half of patients. PVL or suggestion of "hypoxic insult" was present in 18% of term and 45% of preterm patients. In conclusion, individuals with 1p36 deletion have evidence of perinatal distress, white matter changes, and seizures, which can mimic HIE but are likely related to their underlying chromosome disorder.

Published
2019

50. De Novo Variants Disrupting the HX Repeat Motif of ATN1 Cause a Recognizable Non-Progressive Neurocognitive Syndrome

Author

Palmer, Elizabeth E, Hong, Seungbeom, Zahrani, Fatema Al, Hashem, Mais O, Aleisa, Fajr A, Ahmed, Heba M Jalal, Kandula, Tejaswi, Macintosh, Rebecca, Minoche, Andre E, Puttick, Clare, Gayevskiy, Velimir, Drew, Alexander P, Cowley, Mark J, Dinger, Marcel, Rosenfeld, Jill A, Xiao, Rui, Cho, Megan T, Yakubu, Suliat F, Henderson, Lindsay B, Sacoto, Maria J Guillen, Begtrup, Amber, Hamad, Muddathir, Shinawi, Marwan, Andrews, Marisa V, Jones, Marilyn C, Lindstrom, Kristin, Bristol, Ruth E, Kayani, Saima, Snyder, Molly, Villanueva, María Mercedes, Schteinschnaider, Angeles, Faivre, Laurence, Thauvin, Christel, Vitobello, Antonio, Roscioli, Tony, Kirk, Edwin P, Bye, Ann, Merzaban, Jasmeen, Jaremko, Łukasz, Jaremko, Mariusz, Sachdev, Rani K, Alkuraya, Fowzan S, and Arold, Stefan T

Subjects
Biological Sciences, Bioinformatics and Computational Biology, Neurodegenerative, Rare Diseases, Genetics, Pediatric, Brain Disorders, Neurosciences, 2.1 Biological and endogenous factors, Aetiology, Amino Acid Motifs, Child, Child, Preschool, Female, Genetic Variation, Humans, Infant, Male, Nerve Tissue Proteins, Neurocognitive Disorders, Phenotype, Prognosis, Repetitive Sequences, Nucleic Acid, Syndrome, HX repeat, allelic disorders, developmental delay, dysmorphic, intellectual disability, Medical and Health Sciences, Genetics & Heredity, Biological sciences, Biomedical and clinical sciences, Health sciences
Abstract

Polyglutamine expansions in the transcriptional co-repressor Atrophin-1, encoded by ATN1, cause the neurodegenerative condition dentatorubral-pallidoluysian atrophy (DRPLA) via a proposed novel toxic gain of function. We present detailed phenotypic information on eight unrelated individuals who have de novo missense and insertion variants within a conserved 16-amino-acid "HX repeat" motif of ATN1. Each of the affected individuals has severe cognitive impairment and hypotonia, a recognizable facial gestalt, and variable congenital anomalies. However, they lack the progressive symptoms typical of DRPLA neurodegeneration. To distinguish this subset of affected individuals from the DRPLA diagnosis, we suggest using the term CHEDDA (congenital hypotonia, epilepsy, developmental delay, digit abnormalities) to classify the condition. CHEDDA-related variants alter the particular structural features of the HX repeat motif, suggesting that CHEDDA results from perturbation of the structural and functional integrity of the HX repeat. We found several non-homologous human genes containing similar motifs of eight to 10 HX repeat sequences, including RERE, where disruptive variants in this motif have also been linked to a separate condition that causes neurocognitive and congenital anomalies. These findings suggest that perturbation of the HX motif might explain other Mendelian human conditions.

Published
2019

Catalog

Books, media, physical & digital resources
See catalog results