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Gene

GALNT3

polypeptide N-acetylgalactosaminyltransferase 3

Summary

Cytogenetic location
2q24.3
Coordinates
Chromosome 2: 165,747,588–165,794,247 (GRCh38)
Exons
11 exons across 46.7 kb
Protein
633 amino acids
Also known as
GalNAc-T3, HHS, HFTC
MANE Select transcript
ENST00000392701.8NM_004482.4
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 GALNT3 yet. The test sequences your whole genome, so your data includes it all the same.

How GALNT3 is laid out

  • Coding sequence
  • Untranslated region
  • Intron
  • Direction of transcription
  • Known disease-causing sites
  • Stretches short reads find hard
Chromosome 2, with a bracket where GALNT3 sits. GALNT3 and 5 genes near it on chromosome 2, from 165,270,918 to 166,270,917.Chromosome 22q24.3p25.3p25.2p25.1p24.3p24.2p24.1p23.3p23.2p23.1p22.3p22.2p22.1p21p16.3p16.2p16.1p15p14p13.3p13.2p13.1p12p11.2p11.1q11.1q11.2q12.1q12.2q12.3q13q14.1q14.2q14.3q21.1q21.2q21.3q22.1q22.2q22.3q23.1q23.2q23.3q24.1q24.2q24.3q31.1q31.2q31.3q32.1q32.2q32.3q33.1q33.2q33.3q34q35q36.1q36.2q36.3q37.1q37.2q37.3165.4 Mb165.6 Mb165.8 Mb166 Mb166.2 MbSCN2A: 165,194,993–165,392,310, forward strandSCN2ACSRNP3: 165,469,647–165,689,407, forward strandCSRNP3GALNT3: 165,747,588–165,794,247, reverse strandGALNT3TTC21B: 165,857,475–165,953,851, reverse strandTTC21BSCN1A: 165,984,641–166,182,806, reverse strandSCN1ASCN9A: 166,195,185–166,376,001, reverse strandSCN9ADiagram of GALNT3: 11 exons on the reverse strand of chromosome 2Exon 10: 4 known disease-causing sitesExon 7: 3 known disease-causing sitesExon 6: 2 known disease-causing sitesExon 5: 2 known disease-causing sitesExon 4: 4 known disease-causing sitesExon 2: 6 known disease-causing sitesExon 11: 165,747,588–165,748,903, 1,316 basesExon 10: 165,749,742–165,749,894, 153 basesExon 9: 165,754,627–165,754,728, 102 basesExon 8: 165,754,932–165,755,063, 132 basesExon 7: 165,757,047–165,757,247, 201 basesExon 6: 165,758,747–165,758,864, 118 basesExon 5: 165,759,336–165,759,570, 235 basesExon 4: 165,761,905–165,762,054, 150 basesExon 3: 165,764,884–165,765,056, 173 basesExon 2: 165,770,186–165,770,808, 623 basesExon 1: 165,794,015–165,794,247, 233 bases1110864215′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 3.4 kb of the gene's 46.7 kb; 1,902 of those bases code for the protein.

How a genome test reads GALNT3

28

positions in GALNT3 where ClinVar classes a change as pathogenic or likely pathogenic

None of them falls in a region short reads find hard.

A whole genome covers all 46.7 kb of GALNT3, introns included, not only the 3.4 kb of exons.

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.
  • ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
  • The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
  • Data release 2026.10.16-c6eea6bf.

Cite this page

APA

Dante Labs. (n.d.). GALNT3 gene: polypeptide N-acetylgalactosaminyltransferase 3. Retrieved 16 October 2026, from https://dantelabs.com/genes/galnt3

Vancouver

Dante Labs. GALNT3 gene: polypeptide N-acetylgalactosaminyltransferase 3 [Internet]. [cited 16 October 2026]. Available from: https://dantelabs.com/genes/galnt3

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