Skip to main content

Developmental stage

Accumulates steadily during G2 and is abruptly destroyed at mitosis. Not detected during the G1 phase of the cell cycle. It accumulates during the DNA synthesis/S phase and disappears as cells progress into mitosis, between prophase and metaphase (at protein level).

Function

Cyclin which controls both the G1/S and the G2/M transition phases of the cell cycle. Functions through the formation of specific serine/threonine protein kinase holoenzyme complexes with the cyclin-dependent protein kinases CDK1 or CDK2. The cyclin subunit confers the substrate specificity of these complexes and differentially interacts with and activates CDK1 and CDK2 throughout the cell cycle.

Post-translational modifications

Polyubiquitinated via 'Lys-11'-linked ubiquitin by the anaphase-promoting complex (APC/C), leading to its degradation by the proteasome. Deubiquitinated and stabilized by USP37 enables entry into S phase.

Sequence similarities

Belongs to the cyclin family. Cyclin AB subfamily.

Cellular localization

  • Nucleus
  • Cytoplasm
  • Exclusively nuclear during interphase (PubMed:1312467). Detected in the nucleus and the cytoplasm at prophase (PubMed:1312467). Cytoplasmic when associated with SCAPER (PubMed:17698606).

Alternative names

CCN1, CCNA, CCNA2, Cyclin-A2, Cyclin-A, Cyclin A

Target type

Proteins

Primary research area

Oncology

Other research areas

  • Epigenetics

Molecular weight

48551Da

We found 28 products in 2 categories

Proteins & Peptides

Species of origin