Alternative titles and symbols : WMS; Chromosome 7q11.23 deletion syndrome, 1.5- to 1.8-mb; Williams syndrome; WS;
Description : Williams-Beuren syndrome is a multisystem disorder caused by hemizygous deletion of
1.5 to 1.8 Mb on chromosome 7q11.23, which contains approximately 28 genes. Pober
(2010) reviewed the clinical features of Williams-Beuren syndrome as well as the genomic
and genetic basis and clinical management. See also the distal chromosome 7q11.23
deletion syndrome (613729), which occurs between the WBS region and the MAGI2 gene
(606382).;
Inheritance : Autosomal dominant;
Molecular basis : Contiguous gene syndrome resulting from hemizygous deletion 1.5 - 1.8 Mb on 7q11.2;
Laboratory abnormalities : Hemizygous deletion at 7q11.23;