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ST3GAL3

Chr 1p34.1

ST3 beta-galactoside alpha-2,3-sialyltransferase 3

MANE:
ENST00000347631.8

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Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Congenital disorders of glycosylation

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Childhood onset dystonia, chorea or related movement disorder

Disease associations (Open Targets)

  • infantile spasms

    0.71
  • autosomal recessive non-syndromic intellectual disability

    0.67
  • genetic developmental and epileptic encephalopathy

    0.52
  • early-infantile DEE

    0.52
  • COVID-19

    0.46
  • neurodegenerative disease

    0.44
  • hereditary disease

    0.41
  • developmental and epileptic encephalopathy

    0.38
  • attention deficit-hyperactivity disorder

    0.38
  • severe acute respiratory syndrome

    0.37

Score is the Open Targets composite evidence score (0-1). Higher = stronger gene-disease association.

Protein function (UniProt)

CMP-N-acetylneuraminate-beta-1,4-galactoside alpha-2,3-sialyltransferase

Catalyzes the formation of the NeuAc-alpha-2,3-Gal-beta-1,4-GlcNAc-, NeuAc-alpha-2,3-Gal-beta-1,3-GlcNAc- and NeuAc-alpha-2,3-Gal-beta-1,3-GalNAc- sequences found in terminal carbohydrate groups of glycoproteins and glycolipids. The highest activity is toward Gal-beta-1,3-GlcNAc and the lowest toward Gal-beta-1,3-GalNAc

Data sources: HGNC (CC BY 4.0), AlphaFold (CC BY 4.0, Jumper et al. Nature 2021), Genomics England PanelApp (CC BY 4.0), ClinGen, Open Targets (CC0), UniProt.

Not for sole clinical decision-making. Always verify against primary sources.