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23-024-M

Sigma-Aldrich

p27 Protein complex, activated, 10 µg

Activated complex of three (3) full length, recombinant human proteins: p27, Cyclin E1, & CDK2. Phosphorylated in vitro using CDK2/Cyclin E1. For use in Enzyme Assays. Behaves as a substrate in ubiquitin assays.

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Synonym(s):
p27 kip1, Cyclin-dependent kinase inhibitor 1B, Kip1
eCl@ss:
32160405
NACRES:
NA.41

biological source

human

Quality Level

recombinant

expressed in baculovirus infected Sf21 cells

manufacturer/tradename

Upstate®

technique(s)

activity assay: suitable

GenBank® accession no.

Gene Information

General description

p27 is an important regulator of cell cycle progression, involved in G1 arrest. It is a potent inhibitor of cyclin E1- and cyclin A-CDK2 complexes and a positive regulator of cyclin D-dependent kinases such as CDK4. The degradation of this protein, which is triggered by its CDK-dependent phosphorylation and subsequent ubiquitination by SCF complexes, is required for the cellular transition from quiescence to the proliferative state. Decreased levels of p27 are found in various epithelial tumours originating from lung, breast, colon, ovary, oesophagus, thyroid and prostate. Defects in the gene encoding p27 (CDKN1B) are the cause of multiple endocrine neoplasia type 4 (MEN4) an inherited cancer of the thyroid.

Other Notes

For Specific Activity data, refer to the Certificate of Analysis for individual lots of this enzyme.

Legal Information

GenBank is a registered trademark of United States Department of Health and Human Services
UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

12 - Non Combustible Liquids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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