Basic information

Full name
cyclin dependent kinase inhibitor 2A
Ensembl
ENSG00000147889.17
Summary
This gene generates several transcript variants which differ in their first exons. At least three alternatively spliced variants encoding distinct proteins have been reported, two of which encode structurally related isoforms known to function as inhibitors of CDK4 kinase. The remaining transcript includes an alternate first exon located 20 Kb upstream of the remainder of the gene; this transcript contains an alternate open reading frame (ARF) that specifies a protein which is structurally unrelated to the products of the other variants. This ARF product functions as a stabilizer of the tumor suppressor protein p53 as it can interact with, and sequester, the E3 ubiquitin-protein ligase MDM2, a protein responsible for the degradation of p53. In spite of the structural and functional differences, the CDK inhibitor isoforms and the ARF product encoded by this gene, through the regulatory roles of CDK4 and p53 in cell cycle G1 progression, share a common functionality in cell cycle G1 control. This gene is frequently mutated or deleted in a wide variety of tumors, and is known to be an important tumor suppressor gene. [provided by RefSeq, Sep 2012]
Annotation
Cancer driver (TSG)

Protein product

  • ENST00000304494.9 Primary ENSP00000307101.5 (1 phosphosite)
  • ENST00000579755.1 Secondary (UniProt, MANE clinical) ENSP00000462950.1 (0 phosphosite)
  • ENST00000530628.2
  • ENST00000498124.1
  • ENST00000579122.1
  • ENST00000479692.2
  • ENST00000494262.5
  • ENST00000498628.6
  • ENST00000578845.2
  • ENST00000497750.1
Phosphosites on the primary protein product
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Tumor and normal comparison

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Signed p-values
Data type
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
RNA1.3e-34-2.5e-29--0.444.3e-72e-16-0.031-
protein3.9e-4-0.61--0.323.9e-40.827.7e-3--

* P-values are from Wilcoxon rank sum test and can be clicked to show the box plots. Positive values mean higher abundance in tumor. BRCA and GBM do not have normal samples.

mRNA expression at gene level
BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC01234567891011121314log2(RSEM+1)tumornormal
Protein expression
BRCACCRCCGBMHNSCCLSCCLUADOVPDACUCEC1819202122232425262728log2(MS1 intensity)tumornormal

* Mild outlier: filled circle; Extreme outlier: empty circle.

Phenotype and mutation association

Manhattan plot summarizing associations of phenotypes and mutations across all cohorts and omics data types

BRCACCRCCCOADGBMHNSCCLSCCLUADOVPDACUCEC01234567890-1-2-3-4-5-6-7-8-9Pan-cancer012345678910111213140-1-2-3-4-5-6-7-8-9-10-11-12-13-14proteinRNASCNVclinicalpathwaycell typegenomicmutation-log10 of P-value

* Data points of significant associations above and below the dotted lines can be hovered to show the phenotype.

Associations of the protein abundance of CDKN2A with phenotypes and mutations

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Signed p-values
Phenotype
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
PROGENy: TNFa6e-70.0010.32-0.0229.5e-3-0.260.110.329.4e-30.083
PROGENy: NFkB9.4e-78.0e-40.33-0.0150.011-0.340.180.190.0360.11
KINASE-PSP_Chk1/CHEK12.0e-5---1.4e-40.410.15-0.780.0430.140.045
HALLMARK_TNFA_SIGNALING_VIA_NFKB5.3e-55.3e-30.24-0.0247.4e-3-0.760.830.120.170.7
TP53 mutation8.5e-50.45--1.4e-3--0.084--0.029
HALLMARK_INFLAMMATORY_RESPONSE1.9e-40.0180.54-4.5e-30.025-0.63-0.810.470.150.086
HALLMARK_IL6_JAK_STAT3_SIGNALING7.3e-40.0330.41-3.3e-30.17-0.91-0.930.650.350.099
HALLMARK_ALLOGRAFT_REJECTION2.4e-30.0410.84-2.2e-40.240.86-0.310.720.30.15
RB1 mutation2.7e-3---2.7e-3------
KINASE-PSP_RSK2/RPS6KA32.8e-3---2.8e-3------
Showing 1 to 10 of 256 rows

* P-values could be from test for Spearman correlation, Wilcoxon rank sum test, Jonckheere-Terpstra trend test or Cox regression depending on the data type. P-values for individual cohorts can be clicked to show the data plots. The matrix icons in each row can be clicked to show a heatmap summary of associations across all cohorts and omics. The rows in the table can be expanded to show results from other omics.

Cis-association

Associations between omics data of CDKN2A

BRCA0.470.210.29proteinmRNASCNVmethylationCCRCC-0.04-0.080.06-0.32-0.02-0.15proteinmRNASCNVmethylationCOAD0.06proteinmRNASCNVmethylationGBM0.76-0.170.71-0.170.83-0.19proteinmRNASCNVmethylationHNSCC0.66-0.150.33-0.090.48-0.09proteinmRNASCNVmethylationLSCC0.740.020.370.150.500.05proteinmRNASCNVmethylationLUAD0.66-0.350.34-0.070.41-0.17proteinmRNASCNVmethylationOV0.740.420.42proteinmRNASCNVmethylationPDAC0.81-0.750.57-0.260.42-0.20proteinmRNASCNVmethylationUCEC0.740.08-0.05-0.03-0.05-0.21proteinmRNASCNVmethylation

* The numbers are Spearman correlation coefficients and can be clicked to show the scatter plots. The color and size of the circles correlate with the coefficients.

Trans-association

Associations of the protein abundance of CDKN2A and the protein abundance of other genes

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Signed p-values
Gene
Meta P
BRCA
CCRCC
COAD
GBM
HNSCC
LSCC
LUAD
OV
PDAC
UCEC
No matching records found

* P-values are from test for Spearman correlation. P-values for individual cohorts can be clicked to show the data plots. The matrix icons in each row can be clicked to show a heatmap summary of associations across all cohorts and omics. The rows in the table can be expanded to show results from other omics.

Gene set enrichment analysis

Submit genes and the common logarithm of the p-values of their association with to WebGestalt.