Protocadherin gamma-B7 is a protein that in humans is encoded by the PCDHGB7gene.[1][2]
This gene is a member of the protocadherin gamma gene cluster, one of three related clusters tandemly linked on chromosome five. These gene clusters have an immunoglobulin-like organization, suggesting that a novel mechanism may be involved in their regulation and expression. The gamma gene cluster includes 22 genes divided into 3 subfamilies. Subfamily A contains 12 genes, subfamily B contains 7 genes and 2 pseudogenes, and the more distantly related subfamily C contains 3 genes. The tandem array of 22 large, variable region exons are followed by a constant region, containing 3 exons shared by all genes in the cluster. Each variable region exon encodes the extracellular region, which includes 6 cadherin ectodomains and a transmembrane region. The constant region exons encode the common cytoplasmic region. These neural cadherin-like cell adhesion proteins most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been described for the gamma cluster genes.[2]
References
↑Wu Q, Maniatis T (Jul 1999). "A striking organization of a large family of human neural cadherin-like cell adhesion genes". Cell. 97 (6): 779–90. doi:10.1016/S0092-8674(00)80789-8. PMID10380929.
Nollet F, Kools P, van Roy F (2000). "Phylogenetic analysis of the cadherin superfamily allows identification of six major subfamilies besides several solitary members". J. Mol. Biol. 299 (3): 551–72. doi:10.1006/jmbi.2000.3777. PMID10835267.
Matsuyoshi N, Tanaka T, Toda K, Imamura S (1997). "Identification of novel cadherins expressed in human melanoma cells". J. Invest. Dermatol. 108 (6): 908–13. doi:10.1111/1523-1747.ep12292703. PMID9182820.
