Cdk5
entrez
12568
canonical
uniprot
P49615
canonical
ensembl
ENSMUSG00000028969
resolver
ensp
ENSMUSP00000030814
resolver
ensp
ENSMUSP00000173811
resolver
enst
ENSMUST00000030814
resolver
genesymbol
Cdk5
resolver
genesymbol_syn
Cdkn5
resolver
genesymbol_syn
Crk6
resolver
genesymbol_syn
PSSALRE
resolver
uniprot
Q543F6
resolver
uniprot_entry
CDK5_MOUSE
resolver
uniprot_entry
Q543F6_MOUSE
resolver
activity_regulation
ACTIVITY REGULATION: Inhibited by 2-(1-ethyl-2-hydroxyethylamino)-6-benzylamino-9-isopropylpurine (roscovitine), 1-isopropyl-4-aminobenzyl-6-ether-linked benzimidazoles, resveratrol, AT-7519 and olomoucine. Activated by CDK5R1 (p35) and CDK5R2 (p39) during the development of the nervous system; degradation of CDK5R1 (p35) and CDK5R2 (p39) by proteasome result in down regulation of kinase activity, during this process, CDK5 phosphorylates p35 and induces its ubiquitination and subsequent degradation. Kinase activity is mainly determined by the amount of p35 available and subcellular location; reversible association to plasma membrane inhibits activity. Long-term inactivation as well as CDK5R1 (p25)-mediated hyperactivation of CDK5 triggers cell death. The pro-death activity of hyperactivated CDK5 is suppressed by membrane association of CDK5, via myristoylation of p35. Brain-derived neurotrophic factor, glial-derived neurotrophic factor, nerve growth factor (NGF), retinoic acid, laminin and neuregulin promote activity. Neurotoxicity enhances nuclear activity, thus leading to MEF2 phosphorylation and inhibition prior to apoptosis of cortical neurons. Repression by GSTP1 via p25/p35 translocation prevents neurodegeneration (By similarity). {ECO:0000250}.
uniprot
proteins
amino_acid_sequence
MQKYEKLEKIGEGTYGTVFKAKNRETHEIVALKRVRLDDDDEGVPSSALREICLLKELKHKNIVRLHDVLHSDKKLTLVFEFCDQDLKKYFDSCNGDLDPEIVKSFLFQLLKGLGFCHSRNVLHRDLKPQNLLINRNGELKLADFGLARAFGIPVRCYSAEVVTLWYRPPDVLFGAKLYSTSIDMWSAGCIFAELANAGRPLFPGNDVDDQLKRIFRLLGTPTEEQWPAMTKLPDYKPYPMYPATTSLVNVVPKLNATGRDLLQNLLKCNPVQRISAEEALQHPYFSDFCPP
uniprot
proteins
ec_number
2.7.11.1
uniprot
proteins
function
FUNCTION: Proline-directed serine/threonine-protein kinase essential for neuronal cell cycle arrest and differentiation and may be involved in apoptotic cell death in neuronal diseases by triggering abortive cell cycle re-entry. Interacts with D1 and D3-type G1 cyclins. Phosphorylates SRC, NOS3, VIM/vimentin, p35/CDK5R1, MEF2A, SIPA1L1, SH3GLB1, PXN, PAK1, MCAM/MUC18, SEPT5, SYN1, DNM1, AMPH, SYNJ1, CDK16, RAC1, RHOA, CDC42, TONEBP/NFAT5, MAPT/TAU, MAP1B, histone H1, p53/TP53, HDAC1, APEX1, PTK2/FAK1, huntingtin/HTT, ATM, MAP2, NEFH and NEFM. Regulates several neuronal development and physiological processes including neuronal survival, migration and differentiation, axonal and neurite growth, synaptogenesis, oligodendrocyte differentiation, synaptic plasticity and neurotransmission, by phosphorylating key proteins. Negatively regulates the CACNA1B/CAV2.2 -mediated Ca(2+) release probability at hippocampal neuronal soma and synaptic terminals (By similarity). Activated by interaction with CDK5R1 (p35) and CDK5R2 (p39), especially in postmitotic neurons, and promotes CDK5R1 (p35) expression in an autostimulation loop. Phosphorylates many downstream substrates such as Rho and Ras family small GTPases (e.g. PAK1, RAC1, RHOA, CDC42) or microtubule-binding proteins (e.g. MAPT/TAU, MAP2, MAP1B), and modulates actin dynamics to regulate neurite growth and/or spine morphogenesis. Also phosphorylates exocytosis associated proteins such as MCAM/MUC18, SEPT5, SYN1, and CDK16/PCTAIRE1 as well as endocytosis associated proteins such as DNM1, AMPH and SYNJ1 at synaptic terminals. In the mature central nervous system (CNS), regulates neurotransmitter movements by phosphorylating substrates associated with neurotransmitter release and synapse plasticity; synaptic vesicle exocytosis, vesicles fusion with the presynaptic membrane, and endocytosis. Promotes cell survival by activating anti-apoptotic proteins BCL2 and STAT3, and negatively regulating of JNK3/MAPK10 activity. Phosphorylation of p53/TP53 in response to genotoxic and oxidative stresses enhances its stabilization by preventing ubiquitin ligase-mediated proteasomal degradation, and induces transactivation of p53/TP53 target genes, thus regulating apoptosis. Phosphorylation of p35/CDK5R1 enhances its stabilization by preventing calpain-mediated proteolysis producing p25/CDK5R1 and avoiding ubiquitin ligase-mediated proteasomal degradation. During aberrant cell-cycle activity and DNA damage, p25/CDK5 activity elicits cell-cycle activity and double-strand DNA breaks that precedes neuronal death by deregulating HDAC1. DNA damage triggered phosphorylation of huntingtin/HTT in nuclei of neurons protects neurons against polyglutamine expansion as well as DNA damage mediated toxicity. Phosphorylation of PXN reduces its interaction with PTK2/FAK1 in matrix-cell focal adhesions (MCFA) during oligodendrocytes (OLs) differentiation. Negative regulator of Wnt/beta-catenin signaling pathway. Activator of the GAIT (IFN-gamma-activated inhibitor of translation) pathway, which suppresses expression of a post-transcriptional regulon of proinflammatory genes in myeloid cells; phosphorylates the linker domain of glutamyl-prolyl tRNA synthetase (EPRS) in a IFN-gamma-dependent manner, the initial event in assembly of the GAIT complex. Phosphorylation of SH3GLB1 is required for autophagy induction in starved neurons. Phosphorylation of TONEBP/NFAT5 in response to osmotic stress mediates its rapid nuclear localization. MEF2 is inactivated by phosphorylation in nucleus in response to neurotoxin, thus leading to neuronal apoptosis. APEX1 AP-endodeoxyribonuclease is repressed by phosphorylation, resulting in accumulation of DNA damage and contributing to neuronal death. NOS3 phosphorylation down regulates NOS3-derived nitrite (NO) levels. SRC phosphorylation mediates its ubiquitin-dependent degradation and thus leads to cytoskeletal reorganization. May regulate endothelial cell migration and angiogenesis via the modulation of lamellipodia formation. Involved in dendritic spine morphogenesis by mediating the EFNA1-EPHA4 signaling. 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-BMAL1 heterodimer in association with altered stability and subcellular distribution. {ECO:0000250|UniProtKB:Q03114, ECO:0000269|PubMed:12941275, ECO:0000269|PubMed:17143272, ECO:0000269|PubMed:20473298, ECO:0000269|PubMed:21210220, ECO:0000269|PubMed:24235147}.
uniprot
proteins
mass_dalton
33288
uniprot
proteins
mutagenesis
MUTAGEN 15; /note="Y->F: Loss of tyrosine phosphorylations by CABLES1 and ABL1; decreased activity."; /evidence="ECO:0000269|PubMed:10896159
uniprot
proteins
post_translational_modification
PTM: Phosphorylation on Tyr-15 by ABL1 and FYN, and on Ser-159 by casein kinase 1 promotes kinase activity. By contrast, phosphorylation at Thr-14 inhibits activity (By similarity). {ECO:0000250}.; PTM: Phosphorylation at Ser-159 is essential for maximal catalytic activity. {ECO:0000250}.
uniprot
proteins
protein_family
CDC2/CDKX subfamily
uniprot
proteins
protein_family
CMGC Ser/Thr protein kinase family
uniprot
proteins
protein_family
Protein kinase superfamily
uniprot
proteins
pubmed
10896159
uniprot
proteins
pubmed
11226314
uniprot
proteins
pubmed
11517264
uniprot
proteins
pubmed
11955625
uniprot
proteins
pubmed
12941275
uniprot
proteins
pubmed
15489334
uniprot
proteins
pubmed
16203963
uniprot
proteins
pubmed
16452087
uniprot
proteins
pubmed
17143272
uniprot
proteins
pubmed
20473298
uniprot
proteins
pubmed
21183079
uniprot
proteins
pubmed
21210220
uniprot
proteins
pubmed
23806337
uniprot
proteins
pubmed
24235147
uniprot
proteins
pubmed
25078650
uniprot
proteins
pubmed
7490100
uniprot
proteins
pubmed
7834371
uniprot
proteins
pubmed
8444355
uniprot
proteins
sequence_length
292
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Nucleus {ECO:0000250|UniProtKB:Q00535}. Cytoplasm {ECO:0000269|PubMed:11517264}. Cell membrane {ECO:0000250|UniProtKB:Q00535}; Peripheral membrane protein {ECO:0000250}. Perikaryon {ECO:0000250}. Cell projection, lamellipodium {ECO:0000269|PubMed:11517264}. Cell projection, growth cone {ECO:0000269|PubMed:11517264}. Postsynaptic density {ECO:0000250|UniProtKB:Q03114}. Synapse {ECO:0000250|UniProtKB:Q03114}. Note=In axonal growth cone with extension to the peripheral lamellipodia. Under neurotoxic stress and neuronal injury conditions, CDK5R1 (p35) is cleaved by calpain to generate CDK5R1 (p25) in response to increased intracellular calcium. The elevated level of p25, when in complex with CDK5, leads to its subcellular misallocation as well as its hyperactivation. Colocalizes with CTNND2 in the cell body of neuronal cells, and with CTNNB1 in the cell-cell contacts and plasma membrane of undifferentiated and differentiated neuroblastoma cells. Reversibly attached to the plasma membrane in an inactive form when complexed to dephosphorylated p35 or CDK5R2 (p39), p35 phosphorylation releases this attachment and activates CDK5 (By similarity). {ECO:0000250}.
uniprot
proteins