CDKN1A

GENE INFORMATION

? »

Gene name

CDKN1A (HGNC Symbol)

Synonyms

CAP20, CDKN1, CIP1, P21, p21CIP1, p21Cip1/Waf1, SDI1, WAF1

Description

Cyclin-dependent kinase inhibitor 1A (p21, Cip1) (HGNC Symbol)

Entrez gene 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]

Chromosome

6

Cytoband

p21.2

Chromosome location (bp)

36676460 - 36687339

Protein evidence

Evidence at protein level (all genes)

Ensembl

ENSG00000124762 (version 78.38)

Entrez gene

1026

UniProt

P38936 (UniProt - Evidence at protein level)

neXtProt

NX_P38936

Antibodypedia

CDKN1A antibodies
 

PROTEIN VIEW

? »
 
 
 
CDKN1A-001
 
CDKN1A-002
 
CDKN1A-201
 
CDKN1A-202
 
CDKN1A-203
 
 
 
 
 

PROTEIN INFORMATION

? »

Splice variant

Ensembl

UniProt

Protein class

Gene ontology

Length
(aa)

Molecular mass
(kDa)

Signal peptide
(predicted)

Transmembrane regions
(predicted)

CDKN1A-001 ENSP00000244741
ENST00000244741
P38936
Show all »
Show » Show » 164 18.1 No 0
CDKN1A-002 ENSP00000362815
ENST00000373711
P38936
Show all »
Show » Show » 164 18.1 No 0
CDKN1A-201 ENSP00000384849
ENST00000405375
P38936
Show all »
Show » Show » 164 18.1 No 0
CDKN1A-202 ENSP00000409259
ENST00000448526
P38936
Show all »
Show » Show » 164 18.1 No 0
CDKN1A-203 ENSP00000482768
ENST00000615513
P38936
Show all »
Show » Show » 164 18.1 No 0