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Gene

CDKN1A

cyclin dependent kinase inhibitor 1A

Summary

Cytogenetic location
6p21.2
Coordinates
Chromosome 6: 36,678,714–36,687,332 (GRCh38)
Exons
3 exons across 8.6 kb
Protein
164 amino acids
Also known as
P21, CIP1, WAF1, SDI1, CAP20, p21CIP1, p21Cip1/Waf1, p21
Previous symbols
CDKN1
MANE Select transcript
ENST00000244741.10NM_000389.5
Locus type
Protein-coding
  • Very high
  • Confident
  • Low
  • Very low

Curated reports relevant to this gene

No Genome Test report reads CDKN1A yet. The test sequences your whole genome, so your data includes it all the same.

How CDKN1A is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 6, with a bracket where CDKN1A sits. CDKN1A and 16 genes near it on chromosome 6, from 36,183,023 to 37,183,022.Chromosome 66p21.2p25.3p25.2p25.1p24.3p24.2p24.1p23p22.3p22.2p22.1p21.33p21.32p21.31p21.2p21.1p12.3p12.2p12.1p11.2p11.1q11.1q11.2q12q13q14.1q14.2q14.3q15q16.1q16.2q16.3q21q22.1q22.2q22.31q22.32q22.33q23.1q23.2q23.3q24.1q24.2q24.3q25.1q25.2q25.3q26q2736.2 Mb36.4 Mb36.6 Mb36.8 Mb37 MbBRPF3: 36,196,006–36,232,790, forward strandBRPF3PNPLA1: 36,243,203–36,313,955, forward strandPNPLA1BNIP5: 36,315,757–36,337,010, reverse strandBNIP5ETV7: 36,352,630–36,387,801, reverse strandETV7PXT1: 36,390,551–36,442,854, reverse strandPXT1KCTD20: 36,442,767–36,493,886, forward strandKCTD20STK38: 36,493,880–36,547,516, reverse strandSTK38SRSF3: 36,593,777–36,641,535, forward strandSRSF3CDKN1A: 36,678,714–36,687,332, forward strandCDKN1ARAB44: 36,697,826–36,733,184, forward strandRAB44CPNE5: 36,738,448–36,840,052, reverse strandCPNE5C6orf89: 36,834,931–36,928,964, forward strandC6orf89PPIL1: 36,852,061–36,885,868, reverse strandPPIL1PI16: 36,948,258–36,965,993, forward strandPI16MTCH1: 36,965,807–36,986,298, reverse strandMTCH1FGD2: 37,005,637–37,030,923, forward strandFGD2PIM1: 37,170,152–37,175,428, forward strandPIM1Diagram of CDKN1A: 3 exons on the forward strand of chromosome 6Exon 1: 36,678,714–36,678,798, 85 basesExon 2: 36,684,097–36,684,546, 450 basesExon 3: 36,685,751–36,687,332, 1,582 bases1235′3′

Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.

Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).

Nearby genes from Ensembl release 116, on GRCh38.

Exons make up 2.1 kb of the gene's 8.6 kb; 495 of those bases code for the protein.

Sequencing CDKN1A

2Low

How hard CDKN1A is to sequence with short reads, out of 100

  • Mappability0%
  • Homology0%
  • Repeats1%
  • GC content21%
  • Reference coverage0%

External links

Where this comes from

  • HGNC: the gene's symbol, name, other symbols and location.
  • MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
  • The Genome in a Bottle genome stratifications, from NIST: the sequencing difficulty score.

Cite this page

APA

Dante Labs. (n.d.). CDKN1A gene: cyclin dependent kinase inhibitor 1A. Retrieved 18 October 2026, from https://dantelabs.com/genes/cdkn1a

Vancouver

Dante Labs. CDKN1A gene: cyclin dependent kinase inhibitor 1A [Internet]. [cited 18 October 2026]. Available from: https://dantelabs.com/genes/cdkn1a

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