CDK5R2, Official Symbol CDK5R2provided by HGNC Official Full Name cyclin dependent kinase 5 regulatory subunit 2provided by HGNC Primary source HGNC:HGNC:1776 See related Ensembl:ENSG00000171450 MIM:603764; AllianceGenome:HGNC:1776 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as P39; NCK5AI; p39nck5ai Summary The protein encoded by this gene is a neuron-specific activator of CDK5 kinase. It associates with CDK5 to form an active kinase. This protein and neuron-specific CDK5 activator CDK5R1/p39NCK5A both share limited similarity to cyclins, and thus may define a distinct family of cyclin-dependent kinase activating proteins. [provided by RefSeq, Jul 2008] Orthologs mouse all