المؤلفون: Sacoto, Maria J Guillen, Tchasovnikarova, Iva A, Torti, Erin, Forster, Cara, Andrew, E Hallie, Anselm, Irina, Baranano, Kristin W, Briere, Lauren C, Cohen, Julie S, Craigen, William J, Cytrynbaum, Cheryl, Ekhilevitch, Nina, Elrick, Matthew J, Fatemi, Ali, Fraser, Jamie L, Gallagher, Renata C, Guerin, Andrea, Haynes, Devon, High, Frances A, Inglese, Cara N, Kiss, Courtney, Koenig, Mary Kay, Krier, Joel, Lindstrom, Kristin, Marble, Michael, Meddaugh, Hannah, Moran, Ellen S, Morel, Chantal F, Mu, Weiyi, Muller, Eric A, Nance, Jessica, Natowicz, Marvin R, Numis, Adam L, Ostrem, Bridget, Pappas, John, Stafstrom, Carl E, Streff, Haley, Sweetser, David A, Szybowska, Marta, Network, Undiagnosed Diseases, Walker, Melissa A, Wang, Wei, Weiss, Karin, Weksberg, Rosanna, Wheeler, Patricia G, Yoon, Grace, Kingston, Robert E, Juusola, Jane

المصدر: American Journal of Human Genetics. 107(2)

مصطلحات موضوعية: Neurodegenerative, Rare Diseases, Pediatric, Genetics, Brain Disorders, Intellectual and Developmental Disabilities (IDD), Neurosciences, Congenital Structural Anomalies, Clinical Research, Dental/Oral and Craniofacial Disease, Aetiology, 2.1 Biological and endogenous factors, Neurological, Adenosine Triphosphatases, Adolescent, Adult, Child, Child, Preschool, Craniofacial Abnormalities, Female, Genetic Diseases, Inborn, Growth Disorders, Heterozygote, Humans, Infant, Intellectual Disability, Male, Microcephaly, Middle Aged, Mutation, Neurodevelopmental Disorders, Phenotype, Transcription Factors, Young Adult, Undiagnosed Diseases Network, CMT2Z, Leigh-like disease, MORC2, developmental delay, intellectual disability, microcephaly, Biological Sciences, Medical and Health Sciences, Genetics & Heredity

الوصف: MORC2 encodes an ATPase that plays a role in chromatin remodeling, DNA repair, and transcriptional regulation. Heterozygous variants in MORC2 have been reported in individuals with autosomal-dominant Charcot-Marie-Tooth disease type 2Z and spinal muscular atrophy, and the onset of symptoms ranges from infancy to the second decade of life. Here, we present a cohort of 20 individuals referred for exome sequencing who harbor pathogenic variants in the ATPase module of MORC2. Individuals presented with a similar phenotype consisting of developmental delay, intellectual disability, growth retardation, microcephaly, and variable craniofacial dysmorphism. Weakness, hyporeflexia, and electrophysiologic abnormalities suggestive of neuropathy were frequently observed but were not the predominant feature. Five of 18 individuals for whom brain imaging was available had lesions reminiscent of those observed in Leigh syndrome, and five of six individuals who had dilated eye exams had retinal pigmentary abnormalities. Functional assays revealed that these MORC2 variants result in hyperactivation of epigenetic silencing by the HUSH complex, supporting their pathogenicity. The described set of morphological, growth, developmental, and neurological findings and medical concerns expands the spectrum of genetic disorders resulting from pathogenic variants in MORC2.

وصف الملف: application/pdf

الوصول الحر: https://escholarship.org/uc/item/6n82g05cTest

المؤلفون: Ng, Bobby G, Sosicka, Paulina, Agadi, Satish, Almannai, Mohammed, Bacino, Carlos A, Barone, Rita, Botto, Lorenzo D, Burton, Jennifer E, Carlston, Colleen, Chung, Brian Hon‐Yin, Cohen, Julie S, Coman, David, Dipple, Katrina M, Dorrani, Naghmeh, Dobyns, William B, Elias, Abdallah F, Epstein, Leon, Gahl, William A, Garozzo, Domenico, Hammer, Trine Bjørg, Haven, Jaclyn, Héron, Delphine, Herzog, Matthew, Hoganson, George E, Hunter, Jesse M, Jain, Mahim, Juusola, Jane, Lakhani, Shenela, Lee, Hane, Lee, Joy, Lewis, Katherine, Longo, Nicola, Lourenço, Charles Marques, Mak, Christopher CY, McKnight, Dianalee, Mendelsohn, Bryce A, Mignot, Cyril, Mirzaa, Ghayda, Mitchell, Wendy, Muhle, Hiltrud, Nelson, Stanley F, Olczak, Mariusz, Palmer, Christina GS, Partikian, Arthur, Patterson, Marc C, Pierson, Tyler M, Quinonez, Shane C, Regan, Brigid M, Ross, M Elizabeth, Sacoto, Maria J Guillen, Scaglia, Fernando, Scheffer, Ingrid E, Segal, Devorah, Singhal, Nilika Shah, Striano, Pasquale, Sturiale, Luisa, Symonds, Joseph D, Tang, Sha, Vilain, Eric, Willis, Mary, Wolfe, Lynne A, Yang, Hui, Yano, Shoji, Powis, Zöe, Suchy, Sharon F, Rosenfeld, Jill A, Edmondson, Andrew C, Grunewald, Stephanie, Freeze, Hudson H

المصدر: Human Mutation. 40(7)

مصطلحات موضوعية: Clinical Research, Pediatric, Genetics, Aetiology, 2.1 Biological and endogenous factors, Animals, Biopsy, CHO Cells, Cells, Cultured, Congenital Disorders of Glycosylation, Cricetulus, Female, Humans, Male, Monosaccharide Transport Proteins, Mutation, Uridine Diphosphate Galactose, congenital disorders of glycosylation, glycoside, nucleotide sugar transporter, UDP-galactose, Clinical Sciences, Genetics & Heredity

الوصف: Pathogenic de novo variants in the X-linked gene SLC35A2 encoding the major Golgi-localized UDP-galactose transporter required for proper protein and lipid glycosylation cause a rare type of congenital disorder of glycosylation known as SLC35A2-congenital disorders of glycosylation (CDG; formerly CDG-IIm). To date, 29 unique de novo variants from 32 unrelated individuals have been described in the literature. The majority of affected individuals are primarily characterized by varying degrees of neurological impairments with or without skeletal abnormalities. Surprisingly, most affected individuals do not show abnormalities in serum transferrin N-glycosylation, a common biomarker for most types of CDG. Here we present data characterizing 30 individuals and add 26 new variants, the single largest study involving SLC35A2-CDG. The great majority of these individuals had normal transferrin glycosylation. In addition, expanding the molecular and clinical spectrum of this rare disorder, we developed a robust and reliable biochemical assay to assess SLC35A2-dependent UDP-galactose transport activity in primary fibroblasts. Finally, we show that transport activity is directly correlated to the ratio of wild-type to mutant alleles in fibroblasts from affected individuals.

وصف الملف: application/pdf

الوصول الحر: https://escholarship.org/uc/item/48w6q46xTest

المؤلفون: 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, Arold, Stefan T

المصدر: American Journal of Human Genetics. 104(3)

مصطلحات موضوعية: 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

الوصف: 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.

وصف الملف: application/pdf

الوصول الحر: https://escholarship.org/uc/item/9q1277p4Test

المؤلفون: Zarate, Yuri A., Uehara, Tomoko, Abe, Kota, Oginuma, Masayuki, Harako, Sora, Ishitani, Shizuka, Lehesjoki, Anna-Elina, Bierhals, Tatjana, Kloth, Katja, Ehmke, Nadja, Horn, Denise, Holtgrewe, Manuel, Anderson, Katherine, Viskochil, David, Edgar-Zarate, Courtney L., Sacoto, Maria J. Guillen, Schnur, Rhonda E., Morrow, Michelle M., Sanchez-Valle, Amarilis, Pappas, John, Rabin, Rachel, Muona, Mikko, Anttonen, Anna-Kaisa, Platzer, Konrad, Luppe, Johannes, Gburek-Augustat, Janina, Kaname, Tadashi, Okamoto, Nobuhiko, Mizuno, Seiji, Kaido, Yusaku, Ohkuma, Yoshiaki, Hirose, Yutaka, Ishitani, Tohru, Kosaki, Kenjiro

المساهمون: Department of Medical and Clinical Genetics, University of Helsinki, Medicum, HUSLAB, Tutkimusryhmä Anna-Elina Lehesjoki, Neuroscience Center, Helsinki University Hospital Area

مصطلحات موضوعية: MEDIATOR COMPLEX, PROTEIN, SEQUENCE, GENES, MED12, CDK8, 3111 Biomedicine

الوصف: Purpose To expand the recent description of a new neurodevelopmental syndrome related to alterations in CDK19. Methods Individuals were identified through international collaboration. Functional studies included autophosphorylation assays for CDK19 Gly28Arg and Tyr32His variants and in vivo zebrafish assays of the CDK19(G28R) and CDK19(Y32H). Results We describe 11 unrelated individuals (age range: 9 months to 14 years) with de novo missense variants mapped to the kinase domain of CDK19, including two recurrent changes at residues Tyr32 and Gly28. In vitro autophosphorylation and substrate phosphorylation assays revealed that kinase activity of protein was lower for p.Gly28Arg and higher for p.Tyr32His substitutions compared with that of the wild-type protein. Injection of CDK19 messenger RNA (mRNA) with either the Tyr32His or the Gly28Arg variants using in vivo zebrafish model significantly increased fraction of embryos with morphological abnormalities. Overall, the phenotype of the now 14 individuals with CDK19-related disorder includes universal developmental delay and facial dysmorphism, hypotonia (79%), seizures (64%), ophthalmologic anomalies (64%), and autism/autistic traits (56%). Conclusion CDK19 de novo missense variants are responsible for a novel neurodevelopmental disorder. Both kinase assay and zebrafish experiments showed that the pathogenetic mechanism may be more diverse than previously thought. ; Peer reviewed

وصف الملف: application/pdf

العلاقة: Part of this work was supported by the Ministry of Education, Culture, Sports, Science and Technology (MEXT KAKENHI; grant numbers 24118003 and 25131704 to Y.O. and grant numbers 20K21502 and 20H05365 to T.I.), the Japanese Society for the Promotion of Science (JSPS) (KAKENHI; grant numbers 20570162 and 17K07282 to Y.H.), and Japan Agency for Medical Research and Development (JP18ek0109288h0002 and JP19ek0109288h003 to T.I.).; Zarate , Y A , Uehara , T , Abe , K , Oginuma , M , Harako , S , Ishitani , S , Lehesjoki , A-E , Bierhals , T , Kloth , K , Ehmke , N , Horn , D , Holtgrewe , M , Anderson , K , Viskochil , D , Edgar-Zarate , C L , Sacoto , M J G , Schnur , R E , Morrow , M M , Sanchez-Valle , A , Pappas , J , Rabin , R , Muona , M , Anttonen , A-K , Platzer , K , Luppe , J , Gburek-Augustat , J , Kaname , T , Okamoto , N , Mizuno , S , Kaido , Y , Ohkuma , Y , Hirose , Y , Ishitani , T & Kosaki , K 2021 , ' CDK19-related disorder results from both loss-of-function and gain-of-function de novo missense variants ' , Genetics In medicine , vol. 23 , no. 6 , pp. 1050-1057 . https://doi.org/10.1038/s41436-020-01091-9Test; http://hdl.handle.net/10138/353316Test; 242bf5f7-79ce-4649-8e37-fca9fcc07ea0; 000611490600003

الإتاحة: http://hdl.handle.net/10138/353316Test

المؤلفون: Guissart, Claire, Latypova, Xenia, Rollier, Paul, Khan, Tahir N, Stamberger, Hannah, McWalter, Kirsty, Cho, Megan T, Kjaergaard, Susanne, Weckhuysen, Sarah, Lesca, Gaetan, Besnard, Thomas, Õunap, Katrin, Schema, Lynn, Chiocchetti, Andreas G, McDonald, Marie, de Bellescize, Julitta, Vincent, Marie, Van Esch, Hilde, Sattler, Shannon, Forghani, Irman, Thiffault, Isabelle, Freitag, Christine M, Barbouth, Deborah Sara, Cadieux-Dion, Maxime, Willaert, Rebecca, Sacoto, Maria J Guillen, Safina, Nicole P, Dubourg, Christèle, Grote, Lauren, Carré, Wilfrid, Saunders, Carol, Pajusalu, Sander, Farrow, Emily, Boland, Anne, Karlowicz, Danielle Hays, Deleuze, Jean-François, Wojcik, Monica H, Pressman, Rena, Isidor, Bertrand, Vogels, Annick, Van Paesschen, Wim, Al-Gazali, Lihadh, Shamsi, Aisha Mohamed Al, Claustres, Mireille, Pujol, Aurora, Sanders, Stephan J, Rivier, François, Leboucq, Nicolas, Cogné, Benjamin, Sasorith, Souphatta, Sanlaville, Damien, Retterer, Kyle, Odent, Sylvie, Katsanis, Nicholas, Bézieau, Stéphane, Koenig, Michel, Davis, Erica E, Pasquier, Laurent, Küry, Sébastien

المصدر: American Journal of Human Genetics. 102(5)

مصطلحات موضوعية: Biological Sciences, Bioinformatics and Computational Biology, Biomedical and Clinical Sciences, Genetics, Intellectual and Developmental Disabilities (IDD), Neurodegenerative, Neurosciences, Pediatric, Rare Diseases, Brain Disorders, Autism, Mental Health, 2.1 Biological and endogenous factors, Aetiology, Neurological, Adolescent, Adult, Aged, 80 and over, Alleles, Animals, Autistic Disorder, Brain, Cerebellar Ataxia, Child, Child, Preschool, DNA Copy Number Variations, Disease Models, Animal, Female, Genes, Dominant, Genetic Complementation Test, Humans, Intellectual Disability, Larva, Magnetic Resonance Imaging, Male, Middle Aged, Mutation, Missense, Nuclear Receptor Subfamily 1, Group F, Member 1, Purkinje Cells, Syndrome, Zebrafish, RORA, autistic features, cerebellar ataxia, dual molecular effects, epilepsy, intellectual disability, neurodevelopmental disorder, Medical and Health Sciences, Genetics & Heredity, Biological sciences, Biomedical and clinical sciences, Health sciences

الوصف: RORα, the RAR-related orphan nuclear receptor alpha, is essential for cerebellar development. The spontaneous mutant mouse staggerer, with an ataxic gait caused by neurodegeneration of cerebellar Purkinje cells, was discovered two decades ago to result from homozygous intragenic Rora deletions. However, RORA mutations were hitherto undocumented in humans. Through a multi-centric collaboration, we identified three copy-number variant deletions (two de novo and one dominantly inherited in three generations), one de novo disrupting duplication, and nine de novo point mutations (three truncating, one canonical splice site, and five missense mutations) involving RORA in 16 individuals from 13 families with variable neurodevelopmental delay and intellectual disability (ID)-associated autistic features, cerebellar ataxia, and epilepsy. Consistent with the human and mouse data, disruption of the D. rerio ortholog, roraa, causes significant reduction in the size of the developing cerebellum. Systematic in vivo complementation studies showed that, whereas wild-type human RORA mRNA could complement the cerebellar pathology, missense variants had two distinct pathogenic mechanisms of either haploinsufficiency or a dominant toxic effect according to their localization in the ligand-binding or DNA-binding domains, respectively. This dichotomous direction of effect is likely relevant to the phenotype in humans: individuals with loss-of-function variants leading to haploinsufficiency show ID with autistic features, while individuals with de novo dominant toxic variants present with ID, ataxia, and cerebellar atrophy. Our combined genetic and functional data highlight the complex mutational landscape at the human RORA locus and suggest that dual mutational effects likely determine phenotypic outcome.

وصف الملف: application/pdf

الوصول الحر: https://escholarship.org/uc/item/7rq0h7ddTest

المؤلفون: Kour, Sukhleen, Rajan, Deepa S., Fortuna, Tyler R., Anderson, Eric N., Ward, Caroline, Lee, Youngha, Lee, Sangmoon, Shin, Yong Beom, Chae, Jong-Hee, Choi, Murim, Siquier, Karine, Cantagrel, Vincent, Amiel, Jeanne, Stolerman, Elliot S., Barnett, Sarah S., Cousin, Margot A., Quintero-Castro, Diana Lucia, McDonald, Kimberly, Kirmse, Brian, Nemeth, Andrea H., Rajasundaram, Dhivyaa, Innes, A. Micheil, Lynch, Danielle, Frosk, Patrick, Collins, Abigail E., Gibbons, Melissa, Yang, Michele, Desguerre, Isabelle, Boddaert, Natalie, Gitiaux, Cyril, Rydning, Siri Lynne, Selmer, Kaja Kristine, Urreizti, R, Garcia-Oguiza, Alberto, Osorio, Andrés Nascimento, Verdura, Edgard, Pujol, Aurora, McCurry, Hannah R., Landers, John E., Agnihotri, Sameer, Andriescu, E. Corina, Moody, Shade B., Phornphutkul, Chanika, Sacoto, Maria J. Guillen, Begtrup, Amber, Houlden, Henry, Kirschner, Janbernd, Schorling, David, Rudnik-Schöneborn, Sabine, Strom, Tim M., Leiz, Steffen, Juliette, Kali, Richardson, Randal, Yang, Ying, Zhang, Yuehua, Wang, Minghui, Wang, Jia, Wang, Xiaodong, Platzer, Konrad, Donkervoort, Sandra, Bonnemann, Carsten, Wagner, Matias, Issa, Mahmoud Y., Elbendary, Hasnaa M., Stanley, Valentina, Maroofian, Reza, Gleeson, Joseph G., Zaki, Maha S., Senderek, Jan, Pandey, Udai Bhan

المصدر: 2041-1723.

الوصف: GEMIN5, an RNA-binding protein is essential for assembly of the survival motor neuron (SMN) protein complex and facilitates the formation of small nuclear ribonucleoproteins (snRNPs), the building blocks of spliceosomes. Here, we have identified 30 affected individuals from 22 unrelated families presenting with developmental delay, hypotonia, and cerebellar ataxia harboring biallelic variants in the GEMIN5 gene. Mutations in GEMIN5 perturb the subcellular distribution, stability, and expression of GEMIN5 protein and its interacting partners in patient iPSC-derived neurons, suggesting a potential loss-of-function mechanism. GEMIN5 mutations result in disruption of snRNP complex assembly formation in patient iPSC neurons. Furthermore, knock down of rigor mortis, the fly homolog of human GEMIN5, leads to developmental defects, motor dysfunction, and a reduced lifespan. Interestingly, we observed that GEMIN5 variants disrupt a distinct set of transcripts and pathways as compared to SMA patient neurons, suggesting different molecular pathomechanisms. These findings collectively provide evidence that pathogenic variants in GEMIN5 perturb physiological functions and result in a neurodevelopmental delay and ataxia syndrome.

العلاقة: http://urn.nb.no/URN:NBN:no-95561Test; Kour, Sukhleen Rajan, Deepa S. Fortuna, Tyler R. Anderson, Eric N. Ward, Caroline Lee, Youngha Lee, Sangmoon Shin, Yong Beom Chae, Jong-Hee Choi, Murim Siquier, Karine Cantagrel, Vincent Amiel, Jeanne Stolerman, Elliot S. Barnett, Sarah S. Cousin, Margot A. Quintero-Castro, Diana Lucia McDonald, Kimberly Kirmse, Brian Nemeth, Andrea H. Rajasundaram, Dhivyaa Innes, A. Micheil Lynch, Danielle Frosk, Patrick Collins, Abigail E. Gibbons, Melissa Yang, Michele Desguerre, Isabelle Boddaert, Natalie Gitiaux, Cyril Rydning, Siri Lynne Selmer, Kaja Kristine Urreizti, R Garcia-Oguiza, Alberto Osorio, Andrés Nascimento Verdura, Edgard Pujol, Aurora McCurry, Hannah R. Landers, John E. Agnihotri, Sameer Andriescu, E. Corina Moody, Shade B. Phornphutkul, Chanika Sacoto, Maria J. Guillen Begtrup, Amber Houlden, Henry Kirschner, Janbernd Schorling, David Rudnik-Schöneborn, Sabine Strom, Tim M. Leiz, Steffen Juliette, Kali Richardson, Randal Yang, Ying Zhang, Yuehua Wang, Minghui Wang, Jia Wang, Xiaodong Platzer, Konrad Donkervoort, Sandra Bonnemann, Carsten Wagner, Matias Issa, Mahmoud Y. Elbendary, Hasnaa M. Stanley, Valentina Maroofian, Reza Gleeson, Joseph G. Zaki, Maha S. Senderek, Jan Pandey, Udai Bhan . Loss of function mutations in GEMIN5 cause a neurodevelopmental disorder. Nature Communications. 2021, 12(1), 1-15; http://hdl.handle.net/10852/92987Test; 2003066; info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature Communications&rft.volume=12&rft.spage=1&rft.date=2021; Nature Communications; 12; https://doi.org/10.1038/s41467-021-22627-wTest; URN:NBN:no-95561; Fulltext https://www.duo.uio.no/bitstream/handle/10852/92987/1/Loss%2Bof%2Bfunction%2Bmutations%2Bin%2BGEMIN5%2Bcause%2Ba.pdfTest

الإتاحة: https://doi.org/10.1038/s41467-021-22627-wTest
http://hdl.handle.net/10852/92987Test
http://urn.nb.no/URN:NBN:no-95561Test

المؤلفون: Brunet, Theresa, McWalter, Kirsty, Mayerhanser, Katharina, Anbouba, Grace M., Armstrong-Javors, Amy, Bader, Ingrid, Baugh, Evan, Begtrup, Amber, Bupp, Caleb P., Callewaert, Bert, Cereda, Anna, Cousin, Margot A., Jimenez, Juan C. Del Rey, Demmer, Laurie, Dsouza, Nikita R., Fleischer, Nicole, Gavrilova, Ralitza H., Ghate, Sumedha, Graf, Elisabeth, Green, Andrew, Green, Sarah R., Iascone, Maria, Kdissa, Ameni, Klee, Dirk, Klee, Eric W., Lancaster, Emily, Lindstrom, Kristin, Mayr, Johannes A., McEntagart, Meriel, Meeks, Naomi J. L., Mittag, Dana, Moore, Harrison, Olsen, Anne K., Ortiz, Damara, Parsons, Gretchen, Pena, Loren D. M., Person, Richard E., Punj, Sumit, Ramos-Rivera, Gonzalo Alonso, Sacoto, Maria J. Guillen, Bradley Schaefer, G., Schnur, Rhonda E., Scott, Tiana M., Scott, Daryl A., Serbinski, Carolyn R., Shashi, Vandana, Siu, Victoria M., Stadheim, Barbro Fossoy, Sullivan, Jennifer A., Svantnerova, Jana, Velsher, Lea, Wargowski, David S., Wentzensen, Ingrid M., Wieczorek, Dagmar, Winkelmann, Juliane, Yap, Patrick, Zech, Michael, Zimmermann, Michael T., Meitinger, Thomas, Distelmaier, Felix, Wagner, Matias

المصدر: GENETICS IN MEDICINE ; ISSN: 1098-3600 ; ISSN: 1530-0366

مصطلحات موضوعية: Medicine and Health Sciences, DOSAGE COMPENSATION, TRANSCRIPTIONAL REGULATION, MSL COMPLEX, ACETYLATION, MUTATIONS, DOMAIN, DECAY, MOF, autism, developmental delay, histone acetylation, MSL3, X-linked

الوصف: Purpose We sought to delineate the genotypic and phenotypic spectrum of female and male individuals with X-linked, MSL3-related disorder (Basilicata-Akhtar syndrome). Methods Twenty-five individuals (15 males, 10 females) with causative variants in MSL3 were ascertained through exome or genome sequencing at ten different sequencing centers. Results We identified multiple variant types in MSL3 (ten nonsense, six frameshift, four splice site, three missense, one in-frame-deletion, one multi-exon deletion), most proven to be de novo, and clustering in the terminal eight exons suggesting that truncating variants in the first five exons might be compensated by an alternative MSL3 transcript. Three-dimensional modeling of missense and splice variants indicated that these have a deleterious effect. The main clinical findings comprised developmental delay and intellectual disability ranging from mild to severe. Autism spectrum disorder, muscle tone abnormalities, and macrocephaly were common as well as hearing impairment and gastrointestinal problems. Hypoplasia of the cerebellar vermis emerged as a consistent magnetic resonance image (MRI) finding. Females and males were equally affected. Using facial analysis technology, a recognizable facial gestalt was determined. Conclusion Our aggregated data illustrate the genotypic and phenotypic spectrum of X-linked, MSL3-related disorder (Basilicata-Akhtar syndrome). Our cohort improves the understanding of disease related morbidity and allows us to propose detailed surveillance guidelines for affected individuals.

وصف الملف: application/pdf

العلاقة: https://biblio.ugent.be/publication/8687772Test; http://hdl.handle.net/1854/LU-8687772Test; http://dx.doi.org/10.1038/s41436-020-00993-yTest; https://biblio.ugent.be/publication/8687772/file/8692632Test

الإتاحة: https://doi.org/10.1038/s41436-020-00993-yTest
https://biblio.ugent.be/publication/8687772Test
http://hdl.handle.net/1854/LU-8687772Test
https://biblio.ugent.be/publication/8687772/file/8692632Test

المؤلفون: Hüffmeier, Ulrike, Kraus, Cornelia, Reuter, Miriam S, Uebe, Steffen, Abbott, Mary-Alice, Ahmed, Syed A, Rawson, Kristyn L, Barr, Eileen, Li, Hong, Bruel, Ange-Line, Faivre, Laurence, Tran Mau-Them, Frédéric, Botti, Christina, Brooks, Susan, Burns, Kaitlyn, Ward, D Isum, Dutra-Clarke, Marina, Martinez-Agosto, Julian A, Lee, Hane, Nelson, Stanley F, Zacher, Pia, Abou Jamra, Rami, Klöckner, Chiara, McGaughran, Julie, Kohlhase, Jürgen, Schuhmann, Sarah, Moran, Ellen, Pappas, John, Raas-Rothschild, Annick, Sacoto, Maria J Guillen, Henderson, Lindsay B, Palculict, Timothy Blake, Mullegama, Sureni V, Zghal Elloumi, Houda, Reich, Adi, Schrier Vergano, Samantha A, Wahl, Erica, Reis, André, Zweier, Christiane

المصدر: Hüffmeier, Ulrike; Kraus, Cornelia; Reuter, Miriam S; Uebe, Steffen; Abbott, Mary-Alice; Ahmed, Syed A; Rawson, Kristyn L; Barr, Eileen; Li, Hong; Bruel, Ange-Line; Faivre, Laurence; Tran Mau-Them, Frédéric; Botti, Christina; Brooks, Susan; Burns, Kaitlyn; Ward, D Isum; Dutra-Clarke, Marina; Martinez-Agosto, Julian A; Lee, Hane; Nelson, Stanley F; . (2021). EIF3F-related neurodevelopmental disorder: refining the phenotypic and expanding the molecular spectrum. Orphanet journal of rare diseases, 16(1), p. 136. BioMed Central 10.1186/s13023-021-01744-1

مصطلحات موضوعية: 610 Medicine & health

الوصف: BACKGROUND An identical homozygous missense variant in EIF3F, identified through a large-scale genome-wide sequencing approach, was reported as causative in nine individuals with a neurodevelopmental disorder, characterized by variable intellectual disability, epilepsy, behavioral problems and sensorineural hearing-loss. To refine the phenotypic and molecular spectrum of EIF3F-related neurodevelopmental disorder, we examined independent patients. RESULTS 21 patients were homozygous and one compound heterozygous for c.694T>G/p.(Phe232Val) in EIF3F. Haplotype analyses in 15 families suggested that c.694T>G/p.(Phe232Val) was a founder variant. All affected individuals had developmental delays including delayed speech development. About half of the affected individuals had behavioral problems, altered muscular tone, hearing loss, and short stature. Moreover, this study suggests that microcephaly, reduced sensitivity to pain, cleft lip/palate, gastrointestinal symptoms and ophthalmological symptoms are part of the phenotypic spectrum. Minor dysmorphic features were observed, although neither the individuals' facial nor general appearance were obviously distinctive. Symptoms in the compound heterozygous individual with an additional truncating variant were at the severe end of the spectrum in regard to motor milestones, speech delay, organic problems and pre- and postnatal growth of body and head, suggesting some genotype-phenotype correlation. CONCLUSIONS Our study refines the phenotypic and expands the molecular spectrum of EIF3F-related syndromic neurodevelopmental disorder.

وصف الملف: application/pdf

العلاقة: https://boris.unibe.ch/162638Test/

الإتاحة: https://doi.org/10.1186/s13023-021-01744-1Test
https://boris.unibe.ch/162638/1/s13023-021-01744-1.pdfTest
https://boris.unibe.ch/162638Test/

المؤلفون: Kour, Sukhleen, Rajan, Deepa S., Fortuna, Tyler R., Anderson, Eric N., Ward, Caroline, Lee, Youngha, Lee, Sangmoon, Shin, Yong Beom, Chae, Jong-Hee, Choi, Murim, Siquier, Karine, Cantagrel, Vincent, Amiel, Jeanne, Stolerman, Elliot S., Barnett, Sarah S., Cousin, Margot A., Castro, Diana, McDonald, Kimberly, Kirmse, Brian, Nemeth, Andrea H., Rajasundaram, Dhivyaa, Innes, A. Micheil, Lynch, Danielle, Frosk, Patrick, Collins, Abigail, Gibbons, Melissa, Yang, Michele, Desguerre, Isabelle, Boddaert, Nathalie, Gitiaux, Cyril, Rydning, Siri Lynne, Selmer, Kaja K., Urreizti, Roser, Garcia-Oguiza, Alberto, Osorio, Andrés Nascimento, Verdura, Edgard, Pujol, Aurora, McCurry, Hannah R., Landers, John E., Agnihotri, Sameer, Andriescu, E. Corina, Moody, Shade B., Phornphutkul, Chanika, Sacoto, Maria J. Guillen, Begtrup, Amber, Houlden, Henry, Kirschner, Janbernd, Schorling, David, Rudnik-Schöneborn, Sabine, Strom, Tim M.

المصدر: Nature Communications ; volume 12, issue 1 ; ISSN 2041-1723

مصطلحات موضوعية: General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry, Multidisciplinary

الوصف: GEMIN5, an RNA-binding protein is essential for assembly of the survival motor neuron (SMN) protein complex and facilitates the formation of small nuclear ribonucleoproteins (snRNPs), the building blocks of spliceosomes. Here, we have identified 30 affected individuals from 22 unrelated families presenting with developmental delay, hypotonia, and cerebellar ataxia harboring biallelic variants in the GEMIN5 gene. Mutations in GEMIN5 perturb the subcellular distribution, stability, and expression of GEMIN5 protein and its interacting partners in patient iPSC-derived neurons, suggesting a potential loss-of-function mechanism. GEMIN5 mutations result in disruption of snRNP complex assembly formation in patient iPSC neurons. Furthermore, knock down of rigor mortis , the fly homolog of human GEMIN5 , leads to developmental defects, motor dysfunction, and a reduced lifespan. Interestingly, we observed that GEMIN5 variants disrupt a distinct set of transcripts and pathways as compared to SMA patient neurons, suggesting different molecular pathomechanisms. These findings collectively provide evidence that pathogenic variants in GEMIN5 perturb physiological functions and result in a neurodevelopmental delay and ataxia syndrome.

الإتاحة: https://doi.org/10.1038/s41467-021-22627-wTest
https://www.nature.com/articles/s41467-021-22627-w.pdfTest
https://www.nature.com/articles/s41467-021-22627-wTest

المؤلفون: Zarate, Yuri A., Uehara, Tomoko, Abe, Kota, Oginuma, Masayuki, Harako, Sora, Ishitani, Shizuka, Lehesjoki, Anna-Elina, Bierhals, Tatjana, Kloth, Katja, Ehmke, Nadja, Horn, Denise, Holtgrewe, Manuel, Anderson, Katherine, Viskochil, David, Edgar-Zarate, Courtney L., Sacoto, Maria J. Guillen, Schnur, Rhonda E., Morrow, Michelle M., Sanchez-Valle, Amarilis, Pappas, John, Rabin, Rachel, Muona, Mikko, Anttonen, Anna-Kaisa, Platzer, Konrad, Luppe, Johannes, Gburek-Augustat, Janina, Kaname, Tadashi, Okamoto, Nobuhiko, Mizuno, Seiji, Kaido, Yusaku, Ohkuma, Yoshiaki, Hirose, Yutaka, Ishitani, Tohru, Kosaki, Kenjiro

المساهمون: Ministry of Education, Culture, Sports, Science and Technology, Japan Society for the Promotion of Science

المصدر: Genetics in Medicine ; volume 23, issue 6, page 1050-1057 ; ISSN 1098-3600

مصطلحات موضوعية: Genetics (clinical)

الإتاحة: https://doi.org/10.1038/s41436-020-01091-9Test
https://www.nature.com/articles/s41436-020-01091-9.pdfTest
https://www.nature.com/articles/s41436-020-01091-9Test
https://api.elsevier.com/content/article/PII:S1098360021052059?httpAccept=text/xmlTest
https://api.elsevier.com/content/article/PII:S1098360021052059?httpAccept=text/plainTest