TY - JOUR
T1 - Mutations in U4atac snRNA, a component of the minor spliceosome, in the developmental disorder MOPD i
AU - He, Huiling
AU - Liyanarachchi, Sandya
AU - Akagi, Keiko
AU - Nagy, Rebecca
AU - Li, Jingfeng
AU - Dietrich, Rosemary
AU - Li, Wei
AU - Sebastian, Nikhil
AU - Wen, Bernard
AU - Xin, Baozhong
AU - Singh, Jarnail
AU - Yan, Pearlly
AU - Alder, Hansjuerg
AU - Haan, Eric
AU - Wieczorek, Dagmar
AU - Albrecht, Beate
AU - Puffenberger, Erik
AU - Wang, Heng
AU - Westman, Judith
AU - Padgett, Richard
AU - Symer, David
AU - de la Chapelle, Albert
N1 - Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.
PY - 2011/4/8
Y1 - 2011/4/8
N2 - Small nuclear RNAs (snRNAs) are essential factors in messenger RNA splicing. By means of homozygosity mapping and deep sequencing, we show that a gene encoding U4atac snRNA, a component of the minor U12-dependent spliceosome, is mutated in individuals with microcephalic osteodysplastic primordial dwarfism type I (MOPD I), a severe developmental disorder characterized by extreme intrauterine growth retardation and multiple organ abnormalities. Functional assays showed that mutations (30G>A, 51G>A, 55G>A, and 111G>A) associated with MOPD I cause defective U12-dependent splicing. Endogenous U12-dependent but not U2-dependent introns were found to be poorly spliced in MOPD I patient fibroblast cells. The introduction of wild-type U4atac snRNA into MOPD I cells enhanced U12-dependent splicing. These results illustrate the critical role of minor intron splicing in human development.
AB - Small nuclear RNAs (snRNAs) are essential factors in messenger RNA splicing. By means of homozygosity mapping and deep sequencing, we show that a gene encoding U4atac snRNA, a component of the minor U12-dependent spliceosome, is mutated in individuals with microcephalic osteodysplastic primordial dwarfism type I (MOPD I), a severe developmental disorder characterized by extreme intrauterine growth retardation and multiple organ abnormalities. Functional assays showed that mutations (30G>A, 51G>A, 55G>A, and 111G>A) associated with MOPD I cause defective U12-dependent splicing. Endogenous U12-dependent but not U2-dependent introns were found to be poorly spliced in MOPD I patient fibroblast cells. The introduction of wild-type U4atac snRNA into MOPD I cells enhanced U12-dependent splicing. These results illustrate the critical role of minor intron splicing in human development.
UR - http://www.scopus.com/inward/record.url?scp=79953824569&partnerID=8YFLogxK
U2 - 10.1126/science.1200587
DO - 10.1126/science.1200587
M3 - Article
SN - 0036-8075
VL - 332
SP - 238
EP - 240
JO - Science
JF - Science
IS - 6026
ER -