Abstract:
:Bardet-Biedl syndrome (BBS, MIM 209900) is a heterogeneous autosomal recessive disorder characterized by obesity, pigmentary retinopathy, polydactyly, renal malformations, mental retardation, and hypogenitalism. The disorder is also associated with diabetes mellitus, hypertension, and congenital heart disease. Six distinct BBS loci map to 11q13 (BBS1), 16q21 (BBS2), 3p13-p12 (BBS3), 15q22.3-q23 (BBS4), 2q31 (BBS5), and 20p12 (BBS6). Although BBS is rare in the general population (<1/100,000), there is considerable interest in identifying the genes causing BBS because components of the phenotype, such as obesity and diabetes, are common. We and others have demonstrated that BBS6 is caused by mutations in the gene MKKS (refs. 12,13), mutation of which also causes McKusick-Kaufman syndrome (hydrometrocolpos, post-axial polydactyly, and congenital heart defects). MKKS has sequence homology to the alpha subunit of a prokaryotic chaperonin in the thermosome Thermoplasma acidophilum. We recently identified a novel gene that causes BBS2. The BBS2 protein has no significant similarity to other chaperonins or known proteins. Here we report the positional cloning and identification of mutations in BBS patients in a novel gene designated BBS4.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Mykytyn K,Braun T,Carmi R,Haider NB,Searby CC,Shastri M,Beck G,Wright AF,Iannaccone A,Elbedour K,Riise R,Baldi A,Raas-Rothschild A,Gorman SW,Duhl DM,Jacobson SG,Casavant T,Stone EM,Sheffield VCdoi
10.1038/88925keywords:
subject
Has Abstractpub_date
2001-06-01 00:00:00pages
188-91issue
2eissn
1061-4036issn
1546-1718pii
88925journal_volume
28pub_type
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