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1. Bi-allelic ATG4D variants are associated with a neurodevelopmental disorder characterized by speech and motor impairment

Author

Morimoto, Marie, Bhambhani, Vikas, Gazzaz, Nour, Davids, Mariska, Sathiyaseelan, Paalini, Macnamara, Ellen F, Lange, Jennifer, Lehman, Anna, Zerfas, Patricia M, Murphy, Jennifer L, Acosta, Maria T, Wang, Camille, Alderman, Emily, Undiagnosed Diseases Network, Reichert, Sara, Thurm, Audrey, Adams, David R, Introne, Wendy J, Gorski, Sharon M, Boerkoel, Cornelius F, Gahl, William A, Tifft, Cynthia J, and Malicdan, May Christine V

Subjects
Clinical Research, Neurosciences, 2.1 Biological and endogenous factors, Undiagnosed Diseases Network, Aetiology
Abstract

Autophagy regulates the degradation of damaged organelles and protein aggregates, and is critical for neuronal development, homeostasis, and maintenance, yet few neurodevelopmental disorders have been associated with pathogenic variants in genes encoding autophagy-related proteins. We report three individuals from two unrelated families with a neurodevelopmental disorder characterized by speech and motor impairment, and similar facial characteristics. Rare, conserved, bi-allelic variants were identified in ATG4D, encoding one of four ATG4 cysteine proteases important for autophagosome biogenesis, a hallmark of autophagy. Autophagosome biogenesis and induction of autophagy were intact in cells from affected individuals. However, studies evaluating the predominant substrate of ATG4D, GABARAPL1, demonstrated that three of the four ATG4D patient variants functionally impair ATG4D activity. GABARAPL1 is cleaved or "primed" by ATG4D and an in vitro GABARAPL1 priming assay revealed decreased priming activity for three of the four ATG4D variants. Furthermore, a rescue experiment performed in an ATG4 tetra knockout cell line, in which all four ATG4 isoforms were knocked out by gene editing, showed decreased GABARAPL1 priming activity for the two ATG4D missense variants located in the cysteine protease domain required for priming, suggesting that these variants impair the function of ATG4D. The clinical, bioinformatic, and functional data suggest that bi-allelic loss-of-function variants in ATG4D contribute to the pathogenesis of this syndromic neurodevelopmental disorder.

Published
2023

2. Spectrum of neurodevelopmental disease associated with the GNAO1 guanosine triphosphate-binding region

Author

Kelly, McKenna, Park, Meredith, Mihalek, Ivana, Rochtus, Anne, Gramm, Marie, Perez-Palma, Eduardo, Axeen, Erika Takle, Hung, Christina Y, Olson, Heather, Swanson, Lindsay, Anselm, Irina, Briere, Lauren C, High, Frances A, Sweetser, David A, Kayani, Saima, Snyder, Molly, Calvert, Sophie, Scheffer, Ingrid E, Yang, Edward, Waugh, Jeff L, Lal, Dennis, Bodamer, Olaf, Poduri, Annapurna, Adams, David R, Aday, Aaron, Alejandro, Mercedes E, Allard, Patrick, Ashley, Euan A, Azamian, Mahshid S, Bacino, Carlos A, Baker, Eva, Balasubramanyam, Ashok, Barseghyan, Hayk, Batzli, Gabriel F, Beggs, Alan H, Behnam, Babak, Bellen, Hugo J, Bernstein, Jonathan A, Bican, Anna, Bick, David P, Birch, Camille L, Bonner, Devon, Boone, Braden E, Bostwick, Bret L, Brokamp, Elly, Brown, Donna M, Brush, Matthew, Burke, Elizabeth A, Burrage, Lindsay C, Butte, Manish J, Chen, Shan, Clark, Gary D, Coakley, Terra R, Cogan, Joy D, Colley, Heather A, Cooper, Cynthia M, Cope, Heidi, Craigen, William J, D'Souza, Precilla, Davids, Mariska, Davidson, Jean M, Dayal, Jyoti G, Dell'Angelica, Esteban C, Dhar, Shweta U, Dipple, Katrina M, Donnell-Fink, Laurel A, Dorrani, Naghmeh, Dorset, Daniel C, Douine, Emilie D, Draper, David D, Dries, Annika M, Eckstein, David J, Emrick, Lisa T, Eng, Christine M, Enns, Gre-Gory M, Eskin, Ascia, Esteves, Cecilia, Estwick, Tyra, Fairbrother, Laura, Fernandez, Liliana, Ferreira, Carlos, Fieg, Elizabeth L, Fisher, Paul G, Fogel, Brent L, Friedman, Noah D, Gahl, William A, Glanton, Emily, Godfrey, Rena A, Goldman, Alica M, Goldstein, David B, Gould, Sarah E, Gourdine, Jean-Philippe F, Groden, Catherine A, Gropman, Andrea L, Haendel, Melissa, Hamid, Rizwan, Hanchard, Neil A, High, Francis, Holm, Ingrid A, Horn, Jason, Howerton, Ellen M, Huang, Yong, Jamal, Fariha, Jiang, Yong-hui, Johnston, Jean M, Jones, Angela L, Karaviti, Lefkothea, Koeller, David M, Kohane, Isaac S, Kohler, Jennefer N, Konick, Susan, Koziura, Mary, Krasnewich, Donna M, Krier, Joel B, Kyle, Jennifer E, Lalani, Seema R, Lau, C Christopher, Lazar, Jozef, LeBlanc, Kimberly, Lee, Brendan H, Lee, Hane, Levy, Shawn E, Lewis, Richard A, Lincoln, Sharyn A, Loo, Sandra K, Loscalzo, Joseph, Maas, Richard L, Macnamara, Ellen F, MacRae, Calum A, Maduro, Valerie V, Majch-erska, Marta M, Malicdan, May Christine, Mamounas, Laura A, Manolio, Teri A, Markello, Thomas C, Marom, Ronit, Martin, Martin G, Martinez-Agosto, Julian A, Mar-waha, Shruti, May, Thomas, McConkie-Rosell, Allyn, McCormack, Colleen E, McCray, Alexa F, Merker, Jason D, Metz, Thomas O, Might, Matthew, Moretti, Paolo M, Morimoto, Marie, Mulvihill, John J, Murdock, David R, Murphy, Jennifer L, Muzny, Donna M, Nehrebecky, Michele E, Nelson, Stan F, Newberry, J Scott, Newman, John H, Nicholas, Sarah K, Novacic, Donna, Orange, Jordan S, Orengo, James P, Pallais, J Carl, Palmer, Christina GS, Papp, Jeanette C, Parker, Neil H, Pena, Loren DM, Phillips, John A, Posey, Jennifer E, Postlethwait, John H, Potocki, Lorraine, Pusey, Barbara N, Reuter, Chloe M, Rives, Lynette, Robertson, Amy K, Rodan, Lance H, Rosenfeld, Jill A, Sampson, Jacinda B, Samson, Susan L, Schoch, Kelly, Scott, Daryl A, Shakachite, Lisa, Sharma, Prashant, Shashi, Vandana, Signer, Rebecca, Silverman, Edwin K, Sinsheimer, Janet S, Smith, Kevin S, Spillmann, Rebecca C, Stoler, Joan M, Stong, Nicholas, Sullivan, Jennifer A, Tan, Queenie K-G, Tifft, Cynthia J, Toro, Camilo, Tran, Alyssa A, Urv, Tiina K, Vilain, Eric, Vogel, Tiphanie P, Waggott, Daryl M, Wahl, Colleen E, Walker, Melissa, Walley, Nicole M, Walsh, Chris A, Wan, Jijun, Wangler, Michael F, Ward, Patricia A, Waters, Katrina M, Webb-Robertson, Bobbie-Jo M, Westerfield, Monte, Wheeler, Matthew T, Wise, Anastasia L, Wolfe, Lynne A, Worthey, Elizabeth A, Yamamoto, Shinya, Yang, Yaping, Yoon, Amanda J, Yu, Guoyun, Zastrow, Diane B, Zhao, Chunli, and Zheng, Allison

Subjects
0301 basic medicine, Male, Movement disorders, VARIANT, GTP-Binding Protein alpha Subunits, Gi-Go, Neurodegenerative, PHENOTYPE, Gi-Go, Epilepsy, GNAO1, developmental and epileptic encephalopathy, mosaicism, movement disorders, 0302 clinical medicine, BIOMEDICINE AND HEALTHCARE. Basic Medical Sciences. Human Genetics, Genomics and Proteomics, 2.1 Biological and endogenous factors, Aetiology, Child, Genetics, Hypotonia, GTP-Binding Protein alpha Subunits, Neurology, Child, Preschool, Female, medicine.symptom, Life Sciences & Biomedicine, BIOMEDICINA I ZDRAVSTVO. Temeljne medicinske znanosti. Genetika, genomika i proteomika čovjeka, Ataxia, Adolescent, Encephalopathy, Clinical Sciences, Clinical Neurology, Biology, MOVEMENT-DISORDER, G-ALPHA(O), Article, 03 medical and health sciences, Young Adult, BIOMEDICINE AND HEALTHCARE. Clinical Medical Sciences. Neurology, medicine, Humans, Genetic Predisposition to Disease, Preschool, Genetic Association Studies, Science & Technology, Neurology & Neurosurgery, EPILEPTIC ENCEPHALOPATHY, Neurosciences, Genetic Variation, BIOMEDICINA I ZDRAVSTVO. Kliničke medicinske znanosti. Neurologija, Chorea, Undiagnosed Diseases Network, medicine.disease, Brain Disorders, MODEL, 030104 developmental biology, Dyskinesia, DE-NOVO MUTATIONS, Neurodevelopmental Disorders, Case-Control Studies, Neurosciences & Neurology, Neurology (clinical), 030217 neurology & neurosurgery
Abstract

OBJECTIVE: To characterize the phenotypic spectrum associated with GNAO1 variants and establish genotype-protein structure-phenotype relationships. METHODS: We evaluated the phenotypes of 14 patients with GNAO1 variants, analyzed their variants for potential pathogenicity, and mapped them, along with those in the literature, on a three-dimensional structural protein model. RESULTS: The 14 patients in our cohort, including one sibling pair, had 13 distinct, heterozygous GNAO1 variants classified as pathogenic or likely pathogenic. We attributed the same variant in two siblings to parental mosaicism. Patients initially presented with seizures beginning in the first 3 months of life (8/14), developmental delay (4/14), hypotonia (1/14), or movement disorder (1/14). All patients had hypotonia and developmental delay ranging from mild to severe. Nine had epilepsy, and nine had movement disorders, including dystonia, ataxia, chorea, and dyskinesia. The 13 GNAO1 variants in our patients are predicted to result in amino acid substitutions or deletions in the GNAO1 guanosine triphosphate (GTP)-binding region, analogous to those in previous publications. Patients with variants affecting amino acids 207-221 had only movement disorder and hypotonia. Patients with variants affecting the C-terminal region had the mildest phenotypes. SIGNIFICANCE: GNAO1 encephalopathy most frequently presents with seizures beginning in the first 3 months of life. Concurrent movement disorders are also a prominent feature in the spectrum of GNAO1 encephalopathy. All variants affected the GTP-binding domain of GNAO1, highlighting the importance of this region for G-protein signaling and neurodevelopment. ispartof: EPILEPSIA vol:60 issue:3 pages:406-418 ispartof: location:United States status: published

Published
2019

3. Additional file 1: of Complex translocation disrupting TCF4 and altering TCF4 isoform expression segregates as mild autosomal dominant intellectual disability

Author

Maduro, Valerie, Pusey, Barbara, Cherukuri, Praveen, Atkins, Paul, ChristèLe Du Souich, Rupps, Rosemarie, Limbos, Marjolaine, Adams, David, Samarth Bhatt, Eydoux, Patrice, Links, Amanda, Lehman, Anna, Malicdan, May, Mason, Christopher, Morimoto, Marie, Mullikin, James, Sear, Andrew, Karnebeek, Clara Van, Stankiewicz, Pawel, Gahl, William, Toro, Camilo, and Boerkoel, Cornelius

Abstract

Supplementary Methods, Tables and Figures. (PDF 2983 kb)

Published
2016
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4. Additional file 1: of Increased Wnt and Notch signaling: a clue to the renal disease in Schimke immuno-osseous dysplasia?

Author

Morimoto, Marie, Myung, Clara, Beirnes, Kimberly, Kunho Choi, Asakura, Yumi, Bokenkamp, Arend, Bonneau, Dominique, Brugnara, Milena, Charrow, Joel, Colin, Estelle, Davis, Amira, Deschenes, Georges, Gentile, Mattia, Giordano, Mario, Gormley, Andrew, Rajeshree Govender, Joseph, Mark, Keller, Kory, Lerut, Evelyne, Levtchenko, Elena, Massella, Laura, Mayfield, Christy, Najafian, Behzad, Parham, David, Spranger, Jurgen, Stenzel, Peter, Uluc Yis, Zhongxin Yu, Zonana, Jonathan, Hendson, Glenda, and Boerkoel, Cornelius

Subjects
3. Good health
Abstract

Supplementary Methods, Tables, and Figures. (PDF 45904 kb)

5. Additional file 1: of Increased Wnt and Notch signaling: a clue to the renal disease in Schimke immuno-osseous dysplasia?

Author

Morimoto, Marie, Myung, Clara, Beirnes, Kimberly, Kunho Choi, Asakura, Yumi, Bokenkamp, Arend, Bonneau, Dominique, Brugnara, Milena, Charrow, Joel, Colin, Estelle, Davis, Amira, Deschenes, Georges, Gentile, Mattia, Giordano, Mario, Gormley, Andrew, Rajeshree Govender, Joseph, Mark, Keller, Kory, Lerut, Evelyne, Levtchenko, Elena, Massella, Laura, Mayfield, Christy, Najafian, Behzad, Parham, David, Spranger, Jurgen, Stenzel, Peter, Uluc Yis, Zhongxin Yu, Zonana, Jonathan, Hendson, Glenda, and Boerkoel, Cornelius

Subjects
3. Good health
Abstract

Supplementary Methods, Tables, and Figures. (PDF 45904 kb)

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