Skip to content
GenoLensGenoLens

TCN2

Chr 22q12.2

transcobalamin 2

Aliases:
D22S676, D22S750, TC2
MANE:
ENST00000215838.8

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • COVID-19 research

    BIALLELIC, autosomal or pseudoautosomal
  • Cytopenias and congenital anaemias

    BIALLELIC, autosomal or pseudoautosomal
  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Primary immunodeficiency or monogenic inflammatory bowel disease

    BIALLELIC, autosomal or pseudoautosomal
  • Rare anaemia

    BIALLELIC, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

    BIALLELIC, autosomal or pseudoautosomal

+3 more panels — install the extension to see the full list inline on any page.

Disease associations (Open Targets)

  • transcobalamin II deficiency

    0.81
  • Transcobalamin deficiency

    0.79
  • Pancytopenia

    0.63
  • agammaglobulinemia

    0.54
  • Decreased total neutrophil count

    0.50
  • neutropenia

    0.50
  • Failure to thrive

    0.50
  • Thrombocytopenia

    0.50
  • vitamin B12 deficiency

    0.49
  • megaloblastic anemia

    0.48

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

Protein function (UniProt)

Transcobalamin-2

Primary vitamin B12-binding and transport protein. Delivers cobalamin to cells

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.