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Merck

CDKN1A

cyclin-dependent kinase inhibitor 1A (p21, Cip1)

Synonyms:
CAP20, CDKN1, CIP1, MDA-6, P21, SDI1, WAF1, p21CIP1
Species:
UniProtKB ID:
Gene ID:
  • Human(1026) Summary: This gene encodes a potent cyclin-dependent kinase inhibitor. The encoded protein binds to and inhibits the activity of cyclin-CDK2 or -CDK4 complexes, and thus functions as a regulator of cell cycle progression at G1. The expression of this gene is tightly controlled by the tumor suppressor protein p53, through which this protein mediates the p53-dependent cell cycle G1 phase arrest in response to a variety of stress stimuli. This protein can interact with proliferating cell nuclear antigen (PCNA), a DNA polymerase accessory factor, and plays a regulatory role in S phase DNA replication and DNA damage repair. This protein was reported to be specifically cleaved by CASP3-like caspases, which thus leads to a dramatic activation of CDK2, and may be instrumental in the execution of apoptosis following caspase activation. Multiple alternatively spliced variants have been found for this gene. [provided by RefSeq, Nov 2010]
  • Mouse(12575) cyclin-dependent kinase inhibitor 1A (P21)
  • Rat(114851) cyclin-dependent kinase inhibitor 1A
  • Zebrafish(100151416) cyclin-dependent kinase inhibitor 1A
  • domestic guinea pig(100720449) cyclin-dependent kinase inhibitor 1A (p21, Cip1)
  • cow(513497) cyclin-dependent kinase inhibitor 1A (p21, Cip1)
  • sheep(100302083) cyclin-dependent kinase inhibitor 1A (p21, Cip1)
  • dog(474890) cyclin-dependent kinase inhibitor 1A (p21, Cip1)
  • domestic cat(493943) cyclin-dependent kinase inhibitor 1A (p21, Cip1)
  • naked mole-rat(101710552) cyclin-dependent kinase inhibitor 1A (p21, Cip1)

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Antibodies

Product Number
Description
Species Reactivity
Application
Anti-p21 CIP1 antibody produced in rabbit, affinity isolated antibody,
Species Reactivity
human, mouse, rat
Application
ELISA
western blot
Anti-phospho-p21 Cip1 (pThr145) antibody produced in rabbit, affinity isolated antibody,
Species Reactivity
human, mouse, rat
Application
ELISA
immunohistochemistry

western blot
Anti-CDKN1A (Ab-145) antibody produced in rabbit, affinity isolated antibody,
Species Reactivity
human
Application
western blot
Anti-p21WAF1 (Ab-1) Mouse mAb (EA10), liquid, clone EA10, Calbiochem®,
Species Reactivity
human
Application
ANTI-P21CIP1 antibody produced in rabbit, affinity isolated antibody, buffered aqueous solution,
Species Reactivity
human
Application
immunofluorescence
western blot

Small Molecule - Inhibitor

Product Number
Description
Species
Roscovitine, ≥98% (TLC),
Species
human, mouse, rat
Olomoucine, ≥98% (HPLC),
Species
human, rat

Proteins

Product Number
Description
Species
p21CIP1, GST tagged human, recombinant, expressed in E. coli, ≥70% (SDS-PAGE), buffered aqueous glycerol solution,
Species
human