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Developmental perspectives on copy number abnormalities of the 22q11.2 region
Author(s) -
Tan TY,
Gordon CT,
Amor DJ,
Farlie PG
Publication year - 2010
Publication title -
clinical genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.543
H-Index - 102
eISSN - 1399-0004
pISSN - 0009-9163
DOI - 10.1111/j.1399-0004.2010.01456.x
Subject(s) - copy number variation , phenotype , biology , genetics , comparative genomic hybridization , locus (genetics) , gene , digeorge syndrome , gene duplication , tbx1 , gene dosage , genome , gene expression , promoter
Tan TY, Gordon CT, Amor DJ, Farlie PG. Developmental perspectives on copy number abnormalities of the 22q11.2 region. The 22q11.2 chromosomal landscape predisposes to genomic rearrangements that are associated with a variety of clinical phenotypes. The most well known of these include the 22q11.2 deletion and Cat‐eye syndromes (CES), but more recently other copy number abnormalities have been recognised, especially with increased use of microarrays in the investigation of patients with congenital malformations or cognitive impairment. In addition, mutations in the TBX1 gene have been found in patients with phenotypes reminiscent of 22q11.2 syndromes. Recent advances in our understanding of 22q11.2 genes and their interactions provide insight into the mechanisms underlying the phenotypic variability of the 22q11.2 syndromes, and suggest a possible common developmental pathway perturbed by copy number abnormalities of this locus.