Protocadherin alpha-5 is a protein that in humans is encoded by the PCDHA5 gene. [5] [6] [7]
This gene is a member of the protocadherin alpha gene cluster, one of three related gene clusters tandemly linked on chromosome 5 that demonstrate an unusual genomic organization similar to that of B-cell and T-cell receptor gene clusters.
The alpha gene cluster is composed of 15 cadherin superfamily genes related to the mouse CNR genes and consists of 13 highly similar and 2 more distantly related coding sequences. The tandem array of 15 N-terminal exons, or variable exons, are followed by downstream C-terminal exons, or constant exons, which are shared by all genes in the cluster. The large, uninterrupted N-terminal exons each encode six cadherin ectodomains while the C-terminal exons encode the cytoplasmic domain.
These neural cadherin-like cell adhesion proteins are integral plasma membrane proteins that most likely play a critical role in the establishment and function of specific cell-cell connections in the brain. Alternative splicing has been observed and additional variants have been suggested but their full-length nature has yet to be determined. [7]
Protocadherin-8 is a protein that in humans is encoded by the PCDH8 gene.
Protocadherin beta-16 is a protein that in humans is encoded by the PCDHB16 gene.
Protocadherin beta-13 is a protein that in humans is encoded by the PCDHB13 gene.
Protocadherin beta-14 is a protein that in humans is encoded by the PCDHB14 gene.
Protocadherin alpha-12 is a protein that in humans is encoded by the PCDHA12 gene.
Protocadherin alpha-6 is a protein that in humans is encoded by the PCDHA6 gene.
Protocadherin alpha-4 is a protein that in humans is encoded by the PCDHA4 gene.
Protocadherin alpha-2 is a protein that in humans is encoded by the PCDHA2 gene.
Protocadherin alpha-9 is a protein that in humans is encoded by the PCDHA9 gene.
Protocadherin beta-9 is a protein that in humans is encoded by the PCDHB9 gene.
Protocadherin beta-7 is a protein that in humans is encoded by the PCDHB7 gene.
Protocadherin beta-4 is a protein that in humans is encoded by the PCDHB4 gene.
Protocadherin gamma-B7 is a protein that in humans is encoded by the PCDHGB7 gene.
Protocadherin gamma-A11 is a protein that in humans is encoded by the PCDHGA11 gene.
Protocadherin beta-15 is a protein that in humans is encoded by the PCDHB15 gene.
Protocadherin beta-12 is a protein that in humans is encoded by the PCDHB12 gene.
Protocadherin beta-3 is a protein that in humans is encoded by the PCDHB3 gene.
Protocadherin alpha-C2 is a protein that in humans is encoded by the PCDHAC2 gene.
Protocadherin alpha-3 is a protein that in humans is encoded by the PCDHA3 gene.
Protocadherin alpha-1 is a protein that in humans is encoded by the PCDHA1 gene.