Cdk4
entrez
12567
canonical
uniprot
P30285
canonical
ensembl
ENSMUSG00000006728
resolver
ensp
ENSMUSP00000006911
resolver
enst
ENSMUST00000006911
resolver
genesymbol
Cdk4
resolver
genesymbol_syn
Crk3
resolver
uniprot
Q545C3
resolver
uniprot_entry
CDK4_MOUSE
resolver
uniprot_entry
Q545C3_MOUSE
resolver
activity_regulation
ACTIVITY REGULATION: Both phosphorylation at Thr-172 and binding of a D-type cyclin are necessary for enzymatic activity. Full activation of the cyclin-D-CDK4 complex appears to require other factors such as recruitment of the substrate via a substrate recruitment motif, and/or formation of the CDKN1B ternary complex. Inhibited by INK4 family members. In resting cells, the non-tyrosine-phosphorylated form of CDKN1B prevents phosphorylation at Thr-172 and inactivation, while, in proliferating cells, tyrosine phosphorylation of CDKN1B allows phosphorylation of Thr-172 of CDK4 and subsequent activation. {ECO:0000250|UniProtKB:P11802}.
uniprot
proteins
amino_acid_sequence
MAATRYEPVAEIGVGAYGTVYKARDPHSGHFVALKSVRVPNGGAAGGGLPVSTVREVALLRRLEAFEHPNVVRLMDVCATSRTDRDIKVTLVFEHIDQDLRTYLDKAPPPGLPVETIKDLMRQFLSGLDFLHANCIVHRDLKPENILVTSNGTVKLADFGLARIYSYQMALTPVVVTLWYRAPEVLLQSTYATPVDMWSVGCIFAEMFRRKPLFCGNSEADQLGKIFDLIGLPPEDDWPREVSLPRGAFAPRGPRPVQSVVPEMEESGAQLLLEMLTFNPHKRISAFRALQHSYLHKEESDAE
uniprot
proteins
ec_number
2.7.11.22
uniprot
proteins
function
FUNCTION: Ser/Thr-kinase component of cyclin D-CDK4 (DC) complexes that phosphorylate and inhibit members of the retinoblastoma (RB) protein family including RB1 and regulate the cell-cycle during G(1)/S transition. Phosphorylation of RB1 allows dissociation of the transcription factor E2F from the RB/E2F complexes and the subsequent transcription of E2F target genes which are responsible for the progression through the G(1) phase. Hypophosphorylates RB1 in early G(1) phase. Cyclin D-CDK4 complexes are major integrators of various mitogenenic and antimitogenic signals. Also phosphorylates SMAD3 in a cell-cycle-dependent manner and represses its transcriptional activity. Component of the ternary complex, cyclin D/CDK4/CDKN1B, required for nuclear translocation and activity of the cyclin D-CDK4 complex (By similarity). {ECO:0000250}.
uniprot
proteins
mass_dalton
33751
uniprot
proteins
post_translational_modification
PTM: Phosphorylation at Thr-172 is required for enzymatic activity. Phosphorylated, in vitro, at this site by CCNH-CDK7, but, in vivo, appears to be phosphorylated by a proline-directed kinase. In the cyclin D-CDK4-CDKN1B complex, this phosphorylation and consequent CDK4 enzyme activity, is dependent on the tyrosine phosphorylation state of CDKN1B. Thus, in proliferating cells, CDK4 within the complex is phosphorylated on Thr-172 in the T-loop. In resting cells, phosphorylation on Thr-172 is prevented by the non-tyrosine-phosphorylated form of CDKN1B (By similarity). {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
10580009
uniprot
proteins
pubmed
1281307
uniprot
proteins
pubmed
1423597
uniprot
proteins
pubmed
15107404
uniprot
proteins
pubmed
15489334
uniprot
proteins
pubmed
19767775
uniprot
proteins
pubmed
21183079
uniprot
proteins
pubmed
8139570
uniprot
proteins
pubmed
8444355
uniprot
proteins
sequence_length
303
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250|UniProtKB:P11802}. Nucleus {ECO:0000250|UniProtKB:P11802}. Nucleus membrane {ECO:0000250|UniProtKB:P11802}. Note=Cytoplasmic when non-complexed. Forms a cyclin D-CDK4 complex in the cytoplasm as cells progress through G(1) phase. The complex accumulates on the nuclear membrane and enters the nucleus on transition from G(1) to S phase. Also present in nucleoli and heterochromatin lumps. Colocalizes with RB1 after release into the nucleus (By similarity). {ECO:0000250|UniProtKB:P11802}.
uniprot
proteins