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Gene

COL21A1

collagen type XXI alpha 1 chain

Summary

Cytogenetic location
6p12.1
Coordinates
Chromosome 6: 56,056,590–56,247,580 (GRCh38)
Exons
30 exons across 191 kb
Protein
957 amino acids
MANE Select transcript
ENST00000244728.10NM_030820.4
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 COL21A1 yet. The test sequences your whole genome, so your data includes it all the same.

How COL21A1 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 6, with a bracket where COL21A1 sits. COL21A1 and 2 genes near it on chromosome 6, from 55,652,085 to 56,652,084.Chromosome 66p12.1p25.3p25.2p25.1p24.3p24.2p24.1p23p22.3p22.2p22.1p21.33p21.32p21.31p21.2p21.1p12.3p12.2p12.1p11.2p11.1q11.1q11.2q12q13q14.1q14.2q14.3q15q16.1q16.2q16.3q21q22.1q22.2q22.31q22.32q22.33q23.1q23.2q23.3q24.1q24.2q24.3q25.1q25.2q25.3q26q2755.8 Mb56 Mb56.2 Mb56.4 Mb56.6 MbBMP5: 55,753,619–55,875,601, reverse strandBMP5COL21A1: 56,056,590–56,247,580, reverse strandCOL21A1DST: 56,457,981–56,955,274, reverse strandDSTDiagram of COL21A1: 30 exons on the reverse strand of chromosome 6Exon 30: 56,056,590–56,057,844, 1,255 basesExon 29: 56,059,165–56,059,242, 78 basesExon 28: 56,060,018–56,060,218, 201 basesExon 27: 56,060,741–56,060,795, 55 basesExon 26: 56,060,891–56,061,037, 147 basesExon 25: 56,061,649–56,061,681, 33 basesExon 24: 56,064,578–56,064,622, 45 basesExon 23: 56,067,295–56,067,330, 36 basesExon 22: 56,069,046–56,069,117, 72 basesExon 21: 56,070,745–56,070,798, 54 basesExon 20: 56,074,232–56,074,285, 54 basesExon 19: 56,075,479–56,075,532, 54 basesExon 18: 56,077,529–56,077,573, 45 basesExon 17: 56,101,472–56,101,525, 54 basesExon 16: 56,124,062–56,124,115, 54 basesExon 15: 56,124,239–56,124,292, 54 basesExon 14: 56,125,567–56,125,620, 54 basesExon 13: 56,126,096–56,126,149, 54 basesExon 12: 56,141,785–56,141,838, 54 basesExon 11: 56,141,930–56,141,983, 54 basesExon 10: 56,156,887–56,156,949, 63 basesExon 9: 56,164,423–56,164,506, 84 basesExon 8: 56,164,814–56,164,822, 9 basesExon 7: 56,166,906–56,166,983, 78 basesExon 6: 56,168,124–56,168,297, 174 basesExon 5: 56,170,649–56,170,865, 217 basesExon 4: 56,170,960–56,171,128, 169 basesExon 3: 56,179,578–56,180,129, 552 basesExon 2: 56,182,531–56,182,656, 126 basesExon 1: 56,247,387–56,247,580, 194 bases3025201510515′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 191 kb; 2,874 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.). COL21A1 gene: collagen type XXI alpha 1 chain. Retrieved 17 October 2026, from https://dantelabs.com/genes/col21a1

Vancouver

Dante Labs. COL21A1 gene: collagen type XXI alpha 1 chain [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/col21a1

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