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Gene

CMAS

cytidine monophosphate N-acetylneuraminic acid synthetase

Summary

Cytogenetic location
12p12.1
Coordinates
Chromosome 12: 22,046,218–22,065,668 (GRCh38)
Exons
8 exons across 19.5 kb
Protein
434 amino acids
MANE Select transcript
ENST00000229329.7NM_018686.6
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 CMAS yet. The test sequences your whole genome, so your data includes it all the same.

How CMAS is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Stretches short reads find hard
Chromosome 12, with a bracket where CMAS sits. CMAS and 7 genes near it on chromosome 12, from 21,555,943 to 22,555,942.Chromosome 1212p12.1p13.33p13.32p13.31p13.2p13.1p12.3p12.2p12.1p11.23p11.22p11.21p11.1q11q12q13.11q13.12q13.13q13.2q13.3q14.1q14.2q14.3q15q21.1q21.2q21.31q21.32q21.33q22q23.1q23.2q23.3q24.11q24.12q24.13q24.21q24.22q24.23q24.31q24.32q24.3321.6 Mb21.8 Mb22 Mb22.2 Mb22.4 MbGYS2: 21,531,545–21,604,951, reverse strandGYS2: 21,536,203–21,657,798, reverse strandLDHB: 21,635,339–21,757,890, reverse strandLDHBKCNJ8: 21,763,939–21,775,615, reverse strandKCNJ8ABCC9: 21,797,389–21,942,543, reverse strandABCC9CMAS: 22,046,218–22,065,668, forward strandCMASST8SIA1: 22,063,773–22,437,041, reverse strandST8SIA1C2CD5: 22,448,567–22,544,574, reverse strandC2CD5Diagram of CMAS: 8 exons on the forward strand of chromosome 12Exon 1: 22,046,218–22,046,563, 346 basesExon 2: 22,055,149–22,055,291, 143 basesExon 3: 22,055,455–22,055,610, 156 basesExon 4: 22,058,567–22,058,700, 134 basesExon 5: 22,060,832–22,060,926, 95 basesExon 6: 22,061,281–22,061,452, 172 basesExon 7: 22,062,281–22,062,434, 154 basesExon 8: 22,065,121–22,065,668, 548 bases123456785′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 1.7 kb of the gene's 19.5 kb; 1,305 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.). CMAS gene: cytidine monophosphate N-acetylneuraminic acid synthetase. Retrieved 17 October 2026, from https://dantelabs.com/genes/cmas

Vancouver

Dante Labs. CMAS gene: cytidine monophosphate N-acetylneuraminic acid synthetase [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/cmas

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