Abstract:
:Roifman Syndrome is a rare congenital disorder characterized by growth retardation, cognitive delay, spondyloepiphyseal dysplasia and antibody deficiency. Here we utilize whole-genome sequencing of Roifman Syndrome patients to reveal compound heterozygous rare variants that disrupt highly conserved positions of the RNU4ATAC small nuclear RNA gene, a minor spliceosome component that is essential for minor intron splicing. Targeted sequencing confirms allele segregation in six cases from four unrelated families. RNU4ATAC rare variants have been recently reported to cause microcephalic osteodysplastic primordial dwarfism, type I (MOPD1), whose phenotype is distinct from Roifman Syndrome. Strikingly, all six of the Roifman Syndrome cases have one variant that overlaps MOPD1-implicated structural elements, while the other variant overlaps a highly conserved structural element not previously implicated in disease. RNA-seq analysis confirms extensive and specific defects of minor intron splicing. Available allele frequency data suggest that recessive genetic disorders caused by RNU4ATAC rare variants may be more prevalent than previously reported.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Merico D,Roifman M,Braunschweig U,Yuen RK,Alexandrova R,Bates A,Reid B,Nalpathamkalam T,Wang Z,Thiruvahindrapuram B,Gray P,Kakakios A,Peake J,Hogarth S,Manson D,Buncic R,Pereira SL,Herbrick JA,Blencowe BJ,Roifman CMdoi
10.1038/ncomms9718subject
Has Abstractpub_date
2015-11-02 00:00:00pages
8718issn
2041-1723pii
ncomms9718journal_volume
6pub_type
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