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Gene

C1orf21

chromosome 1 open reading frame 21

Summary

Cytogenetic location
1q25.3
Coordinates
Chromosome 1: 184,387,029–184,629,019 (GRCh38)
Exons
6 exons across 242 kb
Protein
121 amino acids
Also known as
PIG13
MANE Select transcript
ENST00000235307.7NM_030806.4
Locus type
gene with protein product
  • Very high
  • Confident
  • Low
  • Very low

Curated reports relevant to this gene

No Genome Test report reads C1orf21 yet. The test sequences your whole genome, so your data includes it all the same.

How C1orf21 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 1, with a bracket where C1orf21 sits. C1orf21 and 4 genes near it on chromosome 1, from 184,008,024 to 185,008,023.Chromosome 11q25.3p36.33p36.32p36.31p36.23p36.22p36.21p36.13p36.12p36.11p35.3p35.2p35.1p34.3p34.2p34.1p33p32.3p32.2p32.1p31.3p31.2p31.1p22.3p22.2p22.1p21.3p21.2p21.1p13.3p13.2p13.1p12p11.2p11.1q11q12q21.1q21.2q21.3q22q23.1q23.2q23.3q24.1q24.2q24.3q25.1q25.2q25.3q31.1q31.2q31.3q32.1q32.2q32.3q41q42.11q42.12q42.13q42.2q42.3q43q44184.2 Mb184.4 Mb184.6 Mb184.8 Mb185 MbCOLGALT2: 183,929,854–184,037,777, reverse strandCOLGALT2TSEN15: 184,051,629–184,123,978, forward strandTSEN15C1orf21: 184,387,029–184,629,019, forward strandC1orf21EDEM3: 184,690,237–184,754,907, reverse strandEDEM3NIBAN1: 184,790,724–184,974,660, reverse strandNIBAN1Diagram of C1orf21: 6 exons on the forward strand of chromosome 1Exon 1: 184,387,029–184,387,368, 340 basesExon 2: 184,477,386–184,477,603, 218 basesExon 3: 184,507,588–184,507,682, 95 basesExon 4: 184,590,739–184,590,815, 77 basesExon 5: 184,598,401–184,598,461, 61 basesExon 6: 184,619,518–184,629,019, 9,502 bases1234565′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 10.3 kb of the gene's 242 kb; 366 of those bases code for the protein.

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.

Cite this page

APA

Dante Labs. (n.d.). C1orf21 gene: chromosome 1 open reading frame 21. Retrieved 17 October 2026, from https://dantelabs.com/genes/c1orf21

Vancouver

Dante Labs. C1orf21 gene: chromosome 1 open reading frame 21 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/c1orf21

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