Article · Wikipedia archive · Last revised Jun 11, 2026

ST3GAL3

ST3 beta-galactoside alpha-2,3-sialyltransferase 3, also known as ST3GAL3, is a protein which in humans is encoded by the ST3GAL3 gene.

Last revised
Jun 11, 2026
Read time
≈ 4 min
Length
1,034 w
Citations
11
Source
ST3GAL3
Identifiers
AliasesST3GAL3, EIEE15, MRT12, SIAT6, ST3GALII, ST3GalIII, ST3N, ST3 beta-galactoside alpha-2,3-sialyltransferase 3, ST3Gal III, DEE15
External IDsOMIM: 606494; MGI: 1316659; HomoloGene: 7539; GeneCards: ST3GAL3; OMA:ST3GAL3 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001161774
NM_001285520
NM_001285521
NM_009176

RefSeq (protein)

NP_001155246
NP_001272449
NP_001272450
NP_033202

Location (UCSC)Chr 1: 43.71 – 43.93 MbChr 4: 117.79 – 117.99 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

ST3 beta-galactoside alpha-2,3-sialyltransferase 3, also known as ST3GAL3, is a protein which in humans is encoded by the ST3GAL3 gene.56

Function

The protein encoded by this gene is a type II membrane protein that catalyzes the transfer of sialic acid from CMP-sialic acid to galactose-containing substrates. The encoded protein is normally found in the Golgi apparatus but can be proteolytically processed to a soluble form. This protein is a member of glycosyltransferase family 29. Multiple transcript variants encoding several different isoforms have been found for this gene.6

Mutations in the ST3GAL3 gene was recently shown to be the cause of autosomal recessive mental retardation 12. Since the mutations disrupt a glycosylation pathway, this disorder may be considered a congenital disorder of glycosylation.

See also

See also

References

References

  1. GRCh38: Ensembl release 89: ENSG00000126091Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000028538Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Kitagawa H, Paulson JC (Jul 1993). "Cloning and expression of human Gal beta 1,3(4)GlcNAc alpha 2,3-sialyltransferase". Biochemical and Biophysical Research Communications. 194 (1): 375–82. doi:10.1006/bbrc.1993.1830. PMID 8333853.
  6. "Entrez Gene: ST3GAL3 ST3 beta-galactoside alpha-2,3-sialyltransferase 3".
Further reading

Further reading