CDK5R1

The protein encoded by this gene (p35) is a neuron-specific activator of cyclin-dependent kinase 5 (CDK5); the activation of CDK5 is required for proper development of the central nervous system. The p35 form of this protein is proteolytically cleaved by calpain, generating a p25 form. The cleavage of p35 into p25 results in relocalization of the protein from the cell periphery to nuclear and perinuclear regions. P25 deregulates CDK5 activity by prolonging its activation and changing its cellular location. The p25 form accumulates in the brain neurons of patients with Alzheimer's disease. This accumulation correlates with an increase in CDK5 kinase activity, and may lead to aberrantly phosphorylated forms of the microtubule-associated protein tau, which contributes to Alzheimer's disease. [provided by RefSeq, Jul 2008]

Description

Cyclin dependent kinase 5 regulatory subunit 1

Tissue specificity

Tissue enriched (brain)

Subcell location

Nucleoplasm, Vesicles

Predicted location

Intracellular

Protein family

Mapped to neXtProt
Mapped to UniProt SWISS-PROT
Predicted intracellular proteins
Protein evidence (Kim et al 2014)

Chromosome

17 (32486993 - 32491253)

Ensembl ID

ENSG00000176749  (ver. 103.38)

Orthologs

Mouse Cdk5r1: ENSMUSG00000048895

UniProt

Q15078

neXtProt

NX_Q15078

Human splice variants
Mouse splice variants

Protein structure