TY - JOUR
T1 - Loss-of-function variants in SRRM2 cause a neurodevelopmental disorder
AU - Cuinat, Silvestre
AU - Nizon, Mathilde
AU - Isidor, Bertrand
AU - Stegmann, Alexander
AU - van Jaarsveld, Richard H
AU - van Gassen, Koen L
AU - van der Smagt, Jasper J
AU - Volker-Touw, Catharina M L
AU - Holwerda, Sjoerd J B
AU - Terhal, Paulien A
AU - Schuhmann, Sarah
AU - Vasileiou, Georgia
AU - Khalifa, Mohamed
AU - Nugud, Alaa A
AU - Yasaei, Hemad
AU - Ousager, Lilian Bomme
AU - Andersen, Charlotte B.
AU - Deb, Wallid
AU - Besnard, Thomas
AU - Simon, Marleen E H
AU - Amsterdam, Karin Huijsdens-van
AU - Verbeek, Nienke E
AU - Matalon, Dena
AU - Dykzeul, Natalie
AU - White, Shana
AU - Spiteri, Elizabeth
AU - Devriendt, Koen
AU - Boogaerts, Anneleen
AU - Willemsen, Marjolein
AU - Brunner, Han G
AU - Sinnema, Margje
AU - De Vries, Bert B A
AU - Gerkes, Erica H
AU - Pfundt, Rolph
AU - Izumi, Kosuke
AU - Krantz, Ian D
AU - Xu, Zhou L
AU - Murrell, Jill R
AU - Valenzuela, Irene
AU - Cusco, Ivon
AU - Rovira-Moreno, Eulàlia
AU - Yang, Yaping
AU - Bizaoui, Varoona
AU - Patat, Olivier
AU - Faivre, Laurence
AU - Tran-Mau-Them, Frederic
AU - Vitobello, Antonio
AU - Denommé-Pichon, Anne-Sophie
AU - Philippe, Christophe
AU - Bezieau, Stéphane
AU - Cogné, Benjamin
N1 - Copyright © 2022 American College of Medical Genetics and Genomics. Published by Elsevier Inc. All rights reserved.
PY - 2022/8
Y1 - 2022/8
N2 - PURPOSE: SRRM2 encodes the SRm300 protein, a splicing factor of the SR-related protein family characterized by its serine- and arginine-enriched domains. It promotes interactions between messenger RNA and the spliceosome catalytic machinery. This gene, predicted to be highly intolerant to loss of function (LoF) and very conserved through evolution, has not been previously reported in constitutive human disease.METHODS: Among the 1000 probands studied with developmental delay and intellectual disability in our database, we found 2 patients with de novo LoF variants in SRRM2. Additional families were identified through GeneMatcher.RESULTS: Here, we report on 22 patients with LoF variants in SRRM2 and provide a description of the phenotype. Molecular analysis identified 12 frameshift variants, 8 nonsense variants, and 2 microdeletions of 66 kb and 270 kb. The patients presented with a mild developmental delay, predominant speech delay, autistic or attention-deficit/hyperactivity disorder features, overfriendliness, generalized hypotonia, overweight, and dysmorphic facial features. Intellectual disability was variable and mild when present.CONCLUSION: We established SRRM2 as a gene responsible for a rare neurodevelopmental disease.
AB - PURPOSE: SRRM2 encodes the SRm300 protein, a splicing factor of the SR-related protein family characterized by its serine- and arginine-enriched domains. It promotes interactions between messenger RNA and the spliceosome catalytic machinery. This gene, predicted to be highly intolerant to loss of function (LoF) and very conserved through evolution, has not been previously reported in constitutive human disease.METHODS: Among the 1000 probands studied with developmental delay and intellectual disability in our database, we found 2 patients with de novo LoF variants in SRRM2. Additional families were identified through GeneMatcher.RESULTS: Here, we report on 22 patients with LoF variants in SRRM2 and provide a description of the phenotype. Molecular analysis identified 12 frameshift variants, 8 nonsense variants, and 2 microdeletions of 66 kb and 270 kb. The patients presented with a mild developmental delay, predominant speech delay, autistic or attention-deficit/hyperactivity disorder features, overfriendliness, generalized hypotonia, overweight, and dysmorphic facial features. Intellectual disability was variable and mild when present.CONCLUSION: We established SRRM2 as a gene responsible for a rare neurodevelopmental disease.
KW - Child
KW - Developmental Disabilities/genetics
KW - Humans
KW - Intellectual Disability/genetics
KW - Muscle Hypotonia/genetics
KW - Neurodevelopmental Disorders/genetics
KW - Phenotype
KW - RNA-Binding Proteins/genetics
U2 - 10.1016/j.gim.2022.04.011
DO - 10.1016/j.gim.2022.04.011
M3 - Journal article
C2 - 35567594
SN - 1098-3600
VL - 24
SP - 1774
EP - 1780
JO - Genetics in Medicine
JF - Genetics in Medicine
IS - 8
ER -