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Gene

CD28

CD28 molecule

Summary

Cytogenetic location
2q33.2
Coordinates
Chromosome 2: 203,706,639–203,738,912 (GRCh38)
Exons
4 exons across 32.3 kb
Protein
220 amino acids
MANE Select transcript
ENST00000324106.9NM_006139.4
Locus type
gene with protein product
  • Very high
  • Confident
  • Low
  • Very low

Reference genomeGRCh38

Positions on gene and variant pages follow this choice, in this browser.

Curated reports relevant to this gene

No Genome Test report reads CD28 yet. The test sequences your whole genome, so your data includes it all the same.

How CD28 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 2, with a bracket where CD28 sits. CD28 and 6 genes near it on chromosome 2, from 203,222,776 to 204,222,775.Chromosome 22q33.2p25.3p25.2p25.1p24.3p24.2p24.1p23.3p23.2p23.1p22.3p22.2p22.1p21p16.3p16.2p16.1p15p14p13.3p13.2p13.1p12p11.2p11.1q11.1q11.2q12.1q12.2q12.3q13q14.1q14.2q14.3q21.1q21.2q21.3q22.1q22.2q22.3q23.1q23.2q23.3q24.1q24.2q24.3q31.1q31.2q31.3q32.1q32.2q32.3q33.1q33.2q33.3q34q35q36.1q36.2q36.3q37.1q37.2q37.3203.4 Mb203.6 Mb203.8 Mb204 Mb204.2 MbNBEAL1: 203,014,608–203,226,378, forward strandNBEAL1CYP20A1: 203,238,952–203,306,026, forward strandCYP20A1ABI2: 203,328,213–203,447,728, forward strandABI2RAPH1: 203,394,345–203,535,478, reverse strandRAPH1CD28: 203,706,639–203,738,912, forward strandCD28CTLA4: 203,853,888–203,873,965, forward strandCTLA4ICOS: 203,936,757–203,961,577, forward strandICOSDiagram of CD28: 4 exons on the forward strand of chromosome 2Exon 1: 203,706,639–203,706,748, 110 basesExon 2: 203,726,633–203,726,989, 357 basesExon 3: 203,729,648–203,729,772, 125 basesExon 4: 203,734,784–203,738,912, 4,129 bases12345′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 4.7 kb of the gene's 32.3 kb; 663 of those bases code for the protein.

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 Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.

Cite this page

APA

Dante Labs. (n.d.). CD28 gene: CD28 molecule. Retrieved 17 October 2026, from https://dantelabs.com/genes/cd28

Vancouver

Dante Labs. CD28 gene: CD28 molecule [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/cd28

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