Catalogue

Background
p34cdk4 is a major catalytic subunit of mammalian D-type cyclins which is expressed by a gene found in human chromosome 12q13. The cdk4 protein is constitutively expressed throughout the cell cycle and it is the assembly and accumulation of functional cdk4/cyclin D complexes which is rate limiting for the progression through the G1 phase of the cell cycle. Once the complex is formed it must be activated by the phosphorylation of threonine 172 on the cdk4 subunit, a reaction mediated by a cdk-activating kinase (CAK). Complex formation and phosphorylation are independently regulated events. The phosphorylation of the cdk4 subunit is subject to regulation of both stimulatory and inhibitory cytokine signals, thereby allowing cdk4 to function as a mid G1 checkpoint. Independent of phosphorylation, cdk4 is also regulated by the binding of p16Ink4/mts1 while in complex with cyclin D.

Source

Immunogen: TrpE-fusion protein containing the C-terminal 164 amino acids of human Cdk4

Product

Product Form: Unconjugated

Formulation: Provided as solution in phosphate buffered saline with 0.08% sodium azide

Purification Method: Ammonium Sulfate Precipitation

Concentration: See vial for concentration

Applications
Detects Cdk4 by Western blot in HeLa cell lysates. Can also be used for immunoprecipitation. Optimal concentration should be evaluated by serial dilutions.

Functional Analysis: Western Blotting

Positive Control: HeLa cell lysate

Storage
Product should be stored at -20°C. Aliquot to avoid freeze/thaw cycles

Product Stability: See expiration date on vial

Shipping Conditions: Ship at ambient temperature, freeze upon arrival

Caution
This product is intended FOR RESEARCH USE ONLY, and FOR TESTS IN VITRO, not for use in diagnostic or therapeutic procedures involving humans or animals. It may contain hazardous ingredients. Please refer to the Safety Data Sheets (SDS) for additional information and proper handling procedures. Dispose product remainders according to local regulations.This datasheet is as accurate as reasonably achievable, but our company accepts no liability for any inaccuracies or omissions in this information.

References
1. Ando, K. and Griffin, J.D. Cdk4 integrates growth stimulatory and inhibitory signals during G1 phase of hematopoietic cells. Oncogene 1995, 10, 751-755. 2. Tam, S.W., et al. Differential expression and cell cycle regulation of the cyclin-dependent kinase 4 inhibitor p16Ink4. Cancer Res. 1994, 54, 5816-5820 3. Khatib, Z.A., et al. Coamplification of the CDK4 gene with MDM2 and GLI in human sarcomas. Cancer Res. 1993, 53, 5535-5541

Protein Reference(s)

Database Name: SwissProt

Accession Number: P11802

Species Accession: Human

Safety Datasheet(s) for this product: