CDKN1A


Name

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

Synonyms

p21Cip1/Waf1, MDA6, CIP1, WAF1, SDI1, PIC1, CAP20, CDKN1, p21CIP1, MDA-6, P21 [provided by Ensembl, GRCh37]

Location

chr6:36,644,305-36,655,116 (forward strand)

Summary

This gene encodes a potent cyclin-dependent kinase inhibitor. The encoded protein binds to and inhibits the activity of cyclin-cyclin-dependent kinase2 or -cyclin-dependent kinase4 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, 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 cyclin-dependent kinase2, and may be instrumental in the execution of apoptosis following caspase activation. Mice that lack this gene have the ability to regenerate damaged or missing tissue. Multiple alternatively spliced variants have been found for this gene. [provided by RefSeq, Sep 2015]

Ensembl gene ID

ENSG00000124762

Biotype

Protein coding

NCBI gene ID

1026

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Gene Networks

Gene regulatory network (GRN) of the gene in two interaction steps distance for the selected cell types. The network depth can be varied by updating the number in the box of Network Settings. The GRN is based on C3NET algorithm [1]. Each links are the highest association scores for one of the genes of gene pairs. The numbers near the checked boxes refer to the numbers of links contributed by each of the cell types. One can uncheck and remove the links of any of the cell types from the network. The network topology is dynamic and can be re-arranged by pulling a node with a mouse. The solid and dashed lines refer to positive and negative correlations, respectively. Right clicking a node will bring up a menu with additional options. The arrows show the most likely direction of regulation between gene pairs.


[1] [2]





Source Gene Ensembl ID Biotype Corr. Sign Corr. Magnitude (r)