Progression of the mammalian cell cycle is regulated by phosphorylation of many key proteins. Several classes of cyclins (A-E) act as regulatory subunits for cyclin-dependent kinases (cdks). These cyclin-cdk holoenzymes are essential for proper control of cell cycle progression. They phosphorylate and regulate a variety of substrates whose activity is required for cell cycle transitions. The temporal expression of cyclins is tightly regulated throughout the cell cycle by synthesis and degradation. Such regulation plays a critical role in controlling the enzymatic activity of the cdks. Cyclin A, one of the mitotic cyclins, activates Cdk2 near the start of S phase and is necessary for the initiation of DNA replication. In mammalian somatic cells, Cyclin A is required during S phase and passage through G2. The D and E type cyclins regulate passage through G1, while Cyclin B is a critical regulator of mitosis. It has been shown in a number of species that mutation or disruption of normal Cyclin A expression causes cells to arrest at G2. Cyclin A binds both the cdc2 (Cdk1) and Cdk2 kinases and may also have a role in mitotic dependence on S phase completion.
Host Species: Mouse
Species Reactivity: Human
Immunogen: Human Cyclin A aa. 26-144
Formula Weight [Chemical]: 60kDa
Bioimaging, Immunofluorescence, Western Blotting
|Human Cyclin A aa. 26-144|
|Store undiluted at -20°C.|
|Aqueous buffered solution containing BSA, glycerol, and ≤0.09% sodium azide.|
For Research Use Only.
We continue to work to improve your shopping experience and your feedback regarding this content is very important to us. Please use the form below to provide feedback related to the content on this product.
Your feedback has been submitted. Fisher Scientific is always working to improve our content for you. We appreciate your feedback.Ok