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FUT2

Chr 19q13.33

fucosyltransferase 2 (H blood group)

Aliases:
sej, Se2, SEC2
MANE:
ENST00000425340.3

Annotations refreshed 9 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Moderate Evidence (Amber)

  • COVID-19 research

    BIALLELIC, autosomal or pseudoautosomal
  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Rare anaemia

    BIALLELIC, autosomal or pseudoautosomal

Disease associations (Open Targets)

  • cholelithiasis

    0.53
  • hypertensive disorder

    0.52
  • COVID-19

    0.52
  • peptic ulcer disease

    0.51
  • Hypercholesterolemia

    0.51
  • vitamin B deficiency

    0.49
  • vitamin B12 deficiency

    0.48
  • essential hypertension

    0.48
  • type 1 diabetes mellitus

    0.48
  • substance-related disorder

    0.47

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

Protein function (UniProt)

Galactoside alpha-(1,2)-fucosyltransferase 2

Catalyzes the transfer of L-fucose, from a guanosine diphosphate-beta-L-fucose, to the terminal galactose on both O- and N-linked glycans chains of cell surface glycoproteins and glycolipids and the resulting epitope regulates several processes such as cell-cell interaction including host-microbe interaction, cell surface expression and cell proliferation (PubMed:12692541, PubMed:7876235, PubMed:8018146). Preferentially fucosylates gangliosides GA1 and GM1 in the antrum, cecum and colon and in the female reproductive organs (By similarity). Fucosylated host glycoproteins or glycolipids mediate interaction with intestinal microbiota influencing its composition (PubMed:21625510, PubMed:22068912, PubMed:24733310). Creates a soluble precursor oligosaccharide FuC-alpha ((1,2)Galbeta-) called the H antigen which is an essential substrate for the final step in the soluble ABO blood group antigen synthesis pathway (PubMed:7876235)

Curated MONDO disease pages that list FUT2 among their top associated genes.

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.