BMS1 Is Mutated in Aplasia Cutis Congenita

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BMS1 Is Mutated in Aplasia Cutis Congenita

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Title: BMS1 Is Mutated in Aplasia Cutis Congenita
Author: Marneros, Alexander G.
Citation: Marneros, Alexander G. 2013. “BMS1 Is Mutated in Aplasia Cutis Congenita.” PLoS Genetics 9 (6): e1003573. doi:10.1371/journal.pgen.1003573. http://dx.doi.org/10.1371/journal.pgen.1003573.
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Abstract: Aplasia cutis congenita (ACC) manifests with localized skin defects at birth of unknown cause, mostly affecting the scalp vertex. Here, genome-wide linkage analysis and exome sequencing was used to identify the causative mutation in autosomal dominant ACC. A heterozygous Arg-to-His missense mutation (p.R930H) in the ribosomal GTPase BMS1 is identified in ACC that is associated with a delay in 18S rRNA maturation, consistent with a role of BMS1 in processing of pre-rRNAs of the small ribosomal subunit. Mutations that affect ribosomal function can result in a cell cycle defect and ACC skin fibroblasts with the BMS1 p.R930H mutation show a reduced cell proliferation rate due to a p21-mediated G1/S phase transition delay. Unbiased comparative global transcript and proteomic analyses of ACC fibroblasts with this mutation confirm a central role of increased p21 levels for the ACC phenotype, which are associated with downregulation of heterogenous nuclear ribonucleoproteins (hnRNPs) and serine/arginine-rich splicing factors (SRSFs). Functional enrichment analysis of the proteomic data confirmed a defect in RNA post-transcriptional modification as the top-ranked cellular process altered in ACC fibroblasts. The data provide a novel link between BMS1, the cell cycle, and skin morphogenesis.
Published Version: doi:10.1371/journal.pgen.1003573
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3681727/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:11708612
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