| Literature DB >> 23579497 |
Alexandre Bolze1, Nizar Mahlaoui, Minji Byun, Bridget Turner, Nikolaus Trede, Steven R Ellis, Avinash Abhyankar, Yuval Itan, Etienne Patin, Samuel Brebner, Paul Sackstein, Anne Puel, Capucine Picard, Laurent Abel, Lluis Quintana-Murci, Saul N Faust, Anthony P Williams, Richard Baretto, Michael Duddridge, Usha Kini, Andrew J Pollard, Catherine Gaud, Pierre Frange, Daniel Orbach, Jean-Francois Emile, Jean-Louis Stephan, Ricardo Sorensen, Alessandro Plebani, Lennart Hammarstrom, Mary Ellen Conley, Licia Selleri, Jean-Laurent Casanova.
Abstract
Isolated congenital asplenia (ICA) is characterized by the absence of a spleen at birth in individuals with no other developmental defects. The patients are prone to life-threatening bacterial infections. The unbiased analysis of exomes revealed heterozygous mutations in RPSA in 18 patients from eight kindreds, corresponding to more than half the patients and over one-third of the kindreds studied. The clinical penetrance in these kindreds is complete. Expression studies indicated that the mutations carried by the patients-a nonsense mutation, a frameshift duplication, and five different missense mutations-cause autosomal dominant ICA by haploinsufficiency. RPSA encodes ribosomal protein SA, a component of the small subunit of the ribosome. This discovery establishes an essential role for RPSA in human spleen development.Entities:
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Year: 2013 PMID： 23579497 PMCID： PMC3677541 DOI： 10.1126/science.1234864
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728