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Gene

C21orf91

chromosome 21 open reading frame 91

Summary

Cytogenetic location
21q21.1
Coordinates
Chromosome 21: 17,788,974–17,819,356 (GRCh38)
Exons
5 exons across 30.4 kb
Protein
297 amino acids
Also known as
YG81, EURL, CSSG1, BTG3-7:1
Previous symbols
C21orf38, C21orf14
MANE Select transcript
ENST00000284881.9NM_001100420.2
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 C21orf91 yet. The test sequences your whole genome, so your data includes it all the same.

How C21orf91 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 21, with a bracket where C21orf91 sits. C21orf91 and 4 genes near it on chromosome 21, from 17,304,165 to 18,304,164.Chromosome 2121q21.1p13p12p11.2p11.1q11.1q11.2q21.1q21.2q21.3q22.11q22.12q22.13q22.2q22.317.4 Mb17.6 Mb17.8 Mb18 Mb18.2 MbCXADR: 17,512,707–17,623,373, forward strandCXADRBTG3: 17,593,225–17,613,014, reverse strandBTG3C21orf91: 17,788,974–17,819,356, reverse strandC21orf91CHODL: 17,901,263–18,270,231, forward strandCHODLTMPRSS15: 18,269,116–18,485,879, reverse strandTMPRSS15Diagram of C21orf91: 5 exons on the reverse strand of chromosome 21Exon 5: 17,788,974–17,793,581, 4,608 basesExon 4: 17,795,208–17,795,270, 63 basesExon 3: 17,796,582–17,797,118, 537 basesExon 2: 17,818,192–17,818,325, 134 basesExon 1: 17,819,303–17,819,356, 54 bases543215′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 5.4 kb of the gene's 30.4 kb; 894 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.). C21orf91 gene: chromosome 21 open reading frame 91. Retrieved 17 October 2026, from https://dantelabs.com/genes/c21orf91

Vancouver

Dante Labs. C21orf91 gene: chromosome 21 open reading frame 91 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/c21orf91

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