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Gene

ARPP21

cAMP regulated phosphoprotein 21

Summary

Cytogenetic location
3p22.3
Coordinates
Chromosome 3: 35,639,525–35,794,486 (GRCh38)
Exons
21 exons across 155 kb
Protein
847 amino acids
Also known as
ARPP-21, TARPP, R3HDM3
MANE Select transcript
ENST00000684406.1NM_001385562.1
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 ARPP21 yet. The test sequences your whole genome, so your data includes it all the same.

How ARPP21 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 3, with a bracket where ARPP21 sits. ARPP21 and 0 genes near it on chromosome 3, from 35,217,006 to 36,217,005.Chromosome 33p22.3p26.3p26.2p26.1p25.3p25.2p25.1p24.3p24.2p24.1p23p22.3p22.2p22.1p21.33p21.32p21.31p21.2p21.1p14.3p14.2p14.1p13p12.3p12.2p12.1p11.2p11.1q11.1q11.2q12.1q12.2q12.3q13.11q13.12q13.13q13.2q13.31q13.32q13.33q21.1q21.2q21.3q22.1q22.2q22.3q23q24q25.1q25.2q25.31q25.32q25.33q26.1q26.2q26.31q26.32q26.33q27.1q27.2q27.3q28q2935.4 Mb35.6 Mb35.8 Mb36 Mb36.2 MbARPP21: 35,639,525–35,794,486, forward strandARPP21Diagram of ARPP21: 21 exons on the forward strand of chromosome 3Exon 1: 35,639,525–35,640,398, 874 basesExon 2: 35,679,787–35,679,960, 174 basesExon 3: 35,681,714–35,681,880, 167 basesExon 4: 35,682,848–35,682,889, 42 basesExon 5: 35,683,726–35,683,815, 90 basesExon 6: 35,687,739–35,687,883, 145 basesExon 7: 35,689,307–35,689,385, 79 basesExon 8: 35,690,081–35,690,140, 60 basesExon 9: 35,690,865–35,691,005, 141 basesExon 10: 35,706,974–35,707,082, 109 basesExon 11: 35,708,969–35,709,070, 102 basesExon 12: 35,715,439–35,715,476, 38 basesExon 13: 35,717,298–35,717,357, 60 basesExon 14: 35,721,605–35,721,834, 230 basesExon 15: 35,729,303–35,729,536, 234 basesExon 16: 35,737,178–35,737,362, 185 basesExon 17: 35,738,214–35,738,318, 105 basesExon 18: 35,739,317–35,739,577, 261 basesExon 19: 35,743,839–35,743,965, 127 basesExon 20: 35,792,382–35,792,530, 149 basesExon 21: 35,793,701–35,794,486, 786 bases1215′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 4.2 kb of the gene's 155 kb; 2,544 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.

Cite this page

APA

Dante Labs. (n.d.). ARPP21 gene: cAMP regulated phosphoprotein 21. Retrieved 17 October 2026, from https://dantelabs.com/genes/arpp21

Vancouver

Dante Labs. ARPP21 gene: cAMP regulated phosphoprotein 21 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/arpp21

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