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Q32KY4

- CDK4_BOVIN

UniProt

Q32KY4 - CDK4_BOVIN

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Protein

Cyclin-dependent kinase 4

Gene

CDK4

Organism
Bos taurus (Bovine)
Status
Reviewed - Annotation score: 5 out of 5- Experimental evidence at transcript leveli

Functioni

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 G1/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 G1 phase. Hypophosphorylates RB1 in early G1 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).By similarity

Catalytic activityi

ATP + a protein = ADP + a phosphoprotein.

Enzyme regulationi

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 subsequennt activation.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei35 – 351ATPPROSITE-ProRule annotation
Active sitei140 – 1401Proton acceptorPROSITE-ProRule annotation

Regions

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Nucleotide bindingi12 – 209ATPPROSITE-ProRule annotation

GO - Molecular functioni

  1. ATP binding Source: UniProtKB-KW
  2. cyclin-dependent protein serine/threonine kinase activity Source: UniProtKB-EC

GO - Biological processi

  1. cell cycle Source: UniProtKB-KW
  2. cell division Source: UniProtKB-KW
  3. negative regulation of cell cycle arrest Source: UniProtKB
  4. positive regulation of G2/M transition of mitotic cell cycle Source: UniProtKB
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Serine/threonine-protein kinase, Transferase

Keywords - Biological processi

Cell cycle, Cell division

Keywords - Ligandi

ATP-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Cyclin-dependent kinase 4 (EC:2.7.11.22)
Alternative name(s):
Cell division protein kinase 4
Gene namesi
Name:CDK4
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
ProteomesiUP000009136: Chromosome 5

Subcellular locationi

Cytoplasm By similarity. Nucleus By similarity. Membrane By similarity
Note: Cytoplasmic when non-complexed. Forms a cyclin D-CDK4 complex in the cytoplasm as cells progress through G1 phase. The complex accumulates on the nuclear membrane and enters the nucleus on transition from G1 to S phase. Also present in nucleoli and heterochromatin lumps. Colocalizes with RB1 after release into the nucleus (By similarity).By similarity

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-KW
  2. membrane Source: UniProtKB-KW
  3. nucleus Source: UniProtKB-KW
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Membrane, Nucleus

Pathology & Biotechi

Keywords - Diseasei

Proto-oncogene

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 303302Cyclin-dependent kinase 4PRO_0000282334Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Modified residuei2 – 21N-acetylalanineBy similarity
Modified residuei172 – 1721Phosphothreonine; by CAKBy similarity

Post-translational modificationi

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).By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Interactioni

Subunit structurei

Component of the D-CDK4 complex, composed of CDK4 and some D-type G1 cyclin (CCND1, CCND2 or CCND3). Interacts directly in the complex with CCND1, CCND2 or CCND3. Interacts with SEI1 and ZNF655. Forms a ternary complex, cyclin D-CDK4-CDKN1B, involved in modulating CDK4 enzymatic activity. Interacts directly with CDKN1B (phosphorylated on 'Tyr-88' and 'Tyr-89'); the interaction allows assembly of the cyclin D-CDK4 complex, Thr-172 phosphorylation, nuclear translocation and enhances the cyclin D-CDK4 complex activity. CDK4 activity is either inhibited or enhanced depending on stoichiometry of complex. The non-tyrosine-phosphorylated form of CDKN1B prevents T-loop phosphorylation of CDK4 producing inactive CDK4. Interacts (unphosphorylated form) with CDK2. Also forms ternary complexes with CDKN1A or CDKN2A. Interacts directly with CDKN1A (via its N-terminal); the interaction promotes the assembly of the cyclin D-CDK4 complex, its nuclear translocation and promotes the cyclin D-dependent enzyme activity of CDK4. Interacts with CCND1; the interaction is prevented with the binding of CCND1 to INSM1 during cell cycle progression (By similarity).By similarity

Protein-protein interaction databases

BioGridi167251. 1 interaction.
STRINGi9913.ENSBTAP00000009420.

Structurei

3D structure databases

ProteinModelPortaliQ32KY4.
SMRiQ32KY4. Positions 2-299.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Domaini6 – 295290Protein kinasePROSITE-ProRule annotationAdd
BLAST

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni50 – 567Required for binding D-type cyclinsBy similarity

Compositional bias

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Compositional biasi42 – 487Poly-Gly

Sequence similaritiesi

Contains 1 protein kinase domain.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiCOG0515.
GeneTreeiENSGT00760000119154.
HOGENOMiHOG000233024.
HOVERGENiHBG014652.
InParanoidiQ32KY4.
KOiK02089.
OMAiIDQDLRT.
OrthoDBiEOG73JKVV.
TreeFamiTF101022.

Family and domain databases

InterProiIPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR002290. Ser/Thr_dual-sp_kinase.
IPR008271. Ser/Thr_kinase_AS.
[Graphical view]
PfamiPF00069. Pkinase. 1 hit.
[Graphical view]
SMARTiSM00220. S_TKc. 1 hit.
[Graphical view]
SUPFAMiSSF56112. SSF56112. 1 hit.
PROSITEiPS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q32KY4-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MATSRYEPVA EIGVGAYGTV YKARDPHSGH FVALKSVRVP NGGGAGGGLP
60 70 80 90 100
ISTVREVALL RRLEAFEHPN VVRLMDVCAT ARTDRETKVT LVFEHVDQDL
110 120 130 140 150
RTYLDKAPPP GLPVETIKDL MRQFLRGLDF LHANCIVHRD LKPENILVTS
160 170 180 190 200
GGTVKLADFG LARIYSYQMA LTPVVVTLWY RAPEVLLQST YATPVDMWSV
210 220 230 240 250
GCIFAEMFRR KPLFCGNSEA DQLGKIFDLI GLPPEDDWPR DVSLPRGAFS
260 270 280 290 300
PRGPRPVQSV VPELEESGAQ LLLEMLTFNP HKRISAFRAL QHSYLHKAEG

DAE
Length:303
Mass (Da):33,647
Last modified:December 6, 2005 - v1
Checksum:i3623FDD0B25EF20A
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BC109858 mRNA. Translation: AAI09859.1.
RefSeqiNP_001032683.1. NM_001037594.2.
XP_005206610.1. XM_005206553.1.
UniGeneiBt.4661.

Genome annotation databases

EnsembliENSBTAT00000009420; ENSBTAP00000009420; ENSBTAG00000007160.
GeneIDi510618.
KEGGibta:510618.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
BC109858 mRNA. Translation: AAI09859.1 .
RefSeqi NP_001032683.1. NM_001037594.2.
XP_005206610.1. XM_005206553.1.
UniGenei Bt.4661.

3D structure databases

ProteinModelPortali Q32KY4.
SMRi Q32KY4. Positions 2-299.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

BioGridi 167251. 1 interaction.
STRINGi 9913.ENSBTAP00000009420.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

Ensembli ENSBTAT00000009420 ; ENSBTAP00000009420 ; ENSBTAG00000007160 .
GeneIDi 510618.
KEGGi bta:510618.

Organism-specific databases

CTDi 1019.

Phylogenomic databases

eggNOGi COG0515.
GeneTreei ENSGT00760000119154.
HOGENOMi HOG000233024.
HOVERGENi HBG014652.
InParanoidi Q32KY4.
KOi K02089.
OMAi IDQDLRT.
OrthoDBi EOG73JKVV.
TreeFami TF101022.

Miscellaneous databases

NextBioi 20869536.

Family and domain databases

InterProi IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR017441. Protein_kinase_ATP_BS.
IPR002290. Ser/Thr_dual-sp_kinase.
IPR008271. Ser/Thr_kinase_AS.
[Graphical view ]
Pfami PF00069. Pkinase. 1 hit.
[Graphical view ]
SMARTi SM00220. S_TKc. 1 hit.
[Graphical view ]
SUPFAMi SSF56112. SSF56112. 1 hit.
PROSITEi PS00107. PROTEIN_KINASE_ATP. 1 hit.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00108. PROTEIN_KINASE_ST. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. NIH - Mammalian Gene Collection (MGC) project
    Submitted (NOV-2005) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Strain: Crossbred X Angus.
    Tissue: Liver.

Entry informationi

Entry nameiCDK4_BOVIN
AccessioniPrimary (citable) accession number: Q32KY4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 3, 2007
Last sequence update: December 6, 2005
Last modified: October 29, 2014
This is version 79 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3