Rabbit anti-Human CDK5R1 Polyclonal Antibody

Uniprot Id

Q15078

Target Species

Human

Target Name

CDK5R1

Target Full Name

Cyclin-dependent kinase 5 activator 1

Target Function

p35 is a neuron specific activator of CDK5. The complex p35/CDK5 is required for neurite outgrowth and cortical lamination. Involved in dendritic spine morphogenesis by mediating the EFNA1-EPHA4 signaling. Activator of TPKII. The complex p35/CDK5 participates in the regulation of the circadian clock by modulating the function of CLOCK protein: phosphorylates CLOCK at 'Thr-451' and 'Thr-461' and regulates the transcriptional activity of the CLOCK-ARNTL/BMAL1 heterodimer in association with altered stability and subcellular distribution.

Target Subcellular Location

[Cyclin-dependent kinase 5 activator 1, p35]: Cell membrane; Lipid-anchor; Cytoplasmic side. Cell projection, neuron projection.; [Cyclin-dependent kinase 5 activator 1, p25]: Nucleus. Cytoplasm, perinuclear region. Perikaryon.

Target Protein Families

Cyclin-dependent kinase 5 activator family

Target Tissue Specificity

Brain and neuron specific.

Target Research Area

Cell Biology

Target Synonyms

CD5R1_HUMAN; CDK5 activator 1; CDK5P35; CDK5R; CDK5R1; Cyclin dependent kinase 5 regulatory subunit 1; Cyclin-dependent kinase 5 activator 1; Cyclin-dependent kinase 5 regulatory subunit 1; NCK 5A; Neuronal CDK5 activator; p23; p25; p35; Regulatory partner for CDK5 kinase; Tau protein kinase II 23 kDa subunit; TPKII regulatory subunit

Target Background

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.