Cyclin-dependent kinase 2

"CDK2" redirects here. For the airport with the Transport Canada identifier CDK2, see Diavik Airport.
CDK2
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
Aliases CDK2, cyclin-dependent kinase 2, A630093N05Rik, CDKN2, p33(CDK2), cyclin dependent kinase 2
External IDs MGI: 104772 HomoloGene: 74409 GeneCards: CDK2
Targeted by Drug
alvocidib, dinaciclib, seliciclib[1]
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez

1017

12566

Ensembl

ENSG00000123374

ENSMUSG00000025358

UniProt

P24941

P97377

RefSeq (mRNA)

NM_001290230
NM_001798
NM_052827

NM_016756
NM_183417

RefSeq (protein)

NP_001277159.1
NP_001789.2
NP_439892.2

NP_058036.1
NP_904326.1

Location (UCSC) Chr 12: 55.97 – 55.97 Mb Chr 10: 128.7 – 128.71 Mb
PubMed search [2] [3]
Wikidata
View/Edit HumanView/Edit Mouse

Cyclin-dependent kinase 2, also known as cell division protein kinase 2, is an enzyme that in humans is encoded by the CDK2 gene.[4][5]

Function

The protein encoded by this gene is a member of the cyclin-dependent kinase family of Ser/Thr protein kinases. This protein kinase is highly similar to the gene products of S. cerevisiae cdc28, and S. pombe cdc2, also known as Cdk1 in humans. It is a catalytic subunit of the cyclin-dependent kinase complex, whose activity is restricted to the G1-S phase of the cell cycle, and is essential for the G1/S transition. This protein associates with and is regulated by the regulatory subunits of the complex including cyclin E or A. Cyclin E binds G1 phase Cdk2, which is required for the transition from G1 to S phase while binding with Cyclin A is required to progress through the S phase. Its activity is also regulated by phosphorylation. Two alternatively spliced variants and multiple transcription initiation sites of this gene have been reported.[5]

The role of this protein in G1-S transition has been recently questioned as cells lacking Cdk2 are reported to have no problem during this transition.[6]

Inhibitors

Known CDK inhibitors are p21Cip1 (CDKN1A) and p27Kip1 (CDKN1B).[7] Drugs that inhibit Cdk2 and arrest the cell cycle, such as GW8510 and the experimental cancer drug seliciclib, may reduce the sensitivity of the epithelium to many cell cycle-active antitumor agents and, therefore, represent a strategy for prevention of chemotherapy-induced alopecia.[8]

Gene regulation

In melanocytic cell types, expression of the CDK2 gene is regulated by the Microphthalmia-associated transcription factor.[9][10]

Interactions

Cyclin-dependent kinase 2 has been shown to interact with:

Overview of signal transduction pathways involved in apoptosis.

References

  1. "Drugs that physically interact with Cyclin-dependent kinase 2 view/edit references on wikidata".
  2. "Human PubMed Reference:".
  3. "Mouse PubMed Reference:".
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  5. 1 2 "Entrez Gene: CDK2 cyclin-dependent kinase 2".
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Further reading

External links

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