TY - JOUR ID - discovery1546386 UR - http://dx.doi.org/10.1016/j.ajhg.2017.02.008 N1 - Copyright © 2017 American Society of Human Genetics. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/) JF - American Journal of Human Genetics SN - 1537-6605 N2 - Pre-mRNA splicing factors play a fundamental role in regulating transcript diversity both temporally and spatially. Genetic defects in several spliceosome components have been linked to a set of non-overlapping spliceosomopathy phenotypes in humans, among which skeletal developmental defects and non-syndromic retinitis pigmentosa (RP) are frequent findings. Here we report that defects in spliceosome-associated protein CWC27 are associated with a spectrum of disease phenotypes ranging from isolated RP to severe syndromic forms. By whole-exome sequencing, recessive protein-truncating mutations in CWC27 were found in seven unrelated families that show a range of clinical phenotypes, including retinal degeneration, brachydactyly, craniofacial abnormalities, short stature, and neurological defects. Remarkably, variable expressivity of the human phenotype can be recapitulated in Cwc27 mutant mouse models, with significant embryonic lethality and severe phenotypes in the complete knockout mice while mice with a partial loss-of-function allele mimic the isolated retinal degeneration phenotype. Our study describes a retinal dystrophy-related phenotype spectrum as well as its genetic etiology and highlights the complexity of the spliceosomal gene network. SP - 592 AV - public Y1 - 2017/04/06/ TI - Mutations in the Spliceosome Component CWC27 Cause Retinal Degeneration with or without Additional Developmental Anomalies VL - 100 A1 - Xu, M A1 - Xie, YA A1 - Abouzeid, H A1 - Gordon, CT A1 - Fiorentino, A A1 - Sun, Z A1 - Lehman, A A1 - Osman, IS A1 - Dharmat, R A1 - Riveiro-Alvarez, R A1 - Bapst-Wicht, L A1 - Babino, D A1 - Arno, G A1 - Busetto, V A1 - Zhao, L A1 - Li, H A1 - Lopez-Martinez, MA A1 - Azevedo, LF A1 - Hubert, L A1 - Pontikos, N A1 - Eblimit, A A1 - Lorda-Sanchez, I A1 - Kheir, V A1 - Plagnol, V A1 - Oufadem, M A1 - Soens, ZT A1 - Yang, L A1 - Bole-Feysot, C A1 - Pfundt, R A1 - Allaman-Pillet, N A1 - Nitschké, P A1 - Cheetham, ME A1 - Lyonnet, S A1 - Agrawal, SA A1 - Li, H A1 - Pinton, G A1 - Michaelides, M A1 - Besmond, C A1 - Li, Y A1 - Yuan, Z A1 - von Lintig, J A1 - Webster, AR A1 - Le Hir, H A1 - Stoilov, P A1 - UK Inherited Retinal Dystrophy Consortium, . A1 - Amiel, J A1 - Hardcastle, AJ A1 - Ayuso, C A1 - Sui, R A1 - Chen, R A1 - Allikmets, R A1 - Schorderet, DF KW - CRISPR-Cas9 KW - CWC27 KW - brachydachtyly KW - craniofacial defects KW - neurological defects KW - retinal degeneration KW - short stature KW - spliceosome KW - syndrome EP - 604 IS - 4 ER -