PCDHA5 (Protocadherin alpha 5) is a member of the protocadherin family, a subgroup of the cadherin superfamily. Protocadherins are neural cadherin like cell surface proteins which are present at synaptic junctions. Their specific functions are unknown but they most likely play a critical role in the establishment and function of specific neuronal connections in the brain. PCDHA5 is one of fifteen tandemly arranged genes within the alpha cluster of protocadherin genes on 5q31.
Cell membrane; Single pass type I membrane protein.