PCDHGA12

Protocadherin gamma subfamily A, 12
Identifiers
Symbols	PCDHGA12 ; CDH21; FIB3; PCDH-GAMMA-A12
External IDs	OMIM: 603059 MGI: 1935229 HomoloGene: 134588 GeneCards: PCDHGA12 Gene
Gene ontology Molecular function • calcium ion binding Cellular component • plasma membrane • cell-cell junction • integral component of membrane Biological process • homophilic cell adhesion via plasma membrane adhesion molecules Sources: Amigo / QuickGO
Orthologs
Species	Human	Mouse
Entrez	26025	93724
Ensembl	ENSG00000253159	ENSMUSG00000102428
UniProt	O60330	Q91XY7
RefSeq (mRNA)	NM_003735	NM_033595
RefSeq (protein)	NP_003726	NP_291073
Location (UCSC)	Chr 5: 141.43 – 141.51 Mb	Chr 18: 37.77 – 37.84 Mb
PubMed search

Protocadherin gamma-A12 is a protein that in humans is encoded by the PCDHGA12 gene.^[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

1. 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. PMID 10380929.
2. "Entrez Gene: PCDHGA12 protocadherin gamma subfamily A, 12".

Further reading

• 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. PMID 10835267.
• Yagi T, Takeichi M (2000). "Cadherin superfamily genes: functions, genomic organization, and neurologic diversity". Genes Dev. 14 (10): 1169–80. doi:10.1101/gad.14.10.1169. PMID 10817752.
• Clark HF, Gurney AL, Abaya E, et al. (2003). "The Secreted Protein Discovery Initiative (SPDI), a Large-Scale Effort to Identify Novel Human Secreted and Transmembrane Proteins: A Bioinformatics Assessment". Genome Res. 13 (10): 2265–70. doi:10.1101/gr.1293003. PMC 403697. PMID 12975309.
• Wu Q, Zhang T, Cheng JF, et al. (2001). "Comparative DNA Sequence Analysis of Mouse and Human Protocadherin Gene Clusters". Genome Res. 11 (3): 389–404. doi:10.1101/gr.167301. PMC 311048. PMID 11230163.
• Wu Q, Maniatis T (2000). "Large exons encoding multiple ectodomains are a characteristic feature of protocadherin genes". Proc. Natl. Acad. Sci. U.S.A. 97 (7): 3124–9. doi:10.1073/pnas.060027397. PMC 16203. PMID 10716726.
• Nagase T, Ishikawa K, Miyajima N, et al. (1998). "Prediction of the coding sequences of unidentified human genes. IX. The complete sequences of 100 new cDNA clones from brain which can code for large proteins in vitro". DNA Res. 5 (1): 31–9. doi:10.1093/dnares/5.1.31. PMID 9628581.
• Matsuyoshi N, Imamura S (1997). "Multiple cadherins are expressed in human fibroblasts". Biochem. Biophys. Res. Commun. 235 (2): 355–8. doi:10.1006/bbrc.1997.6707. PMID 9199196.