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GCK

Chr 7p13

glucokinase

Aliases:
HK4, HKIV
MANE:
ENST00000403799.8

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Congenital hyperinsulinism

    MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
  • Diabetes with additional phenotypes suggestive of a monogenic aetiology

    BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
  • Familial diabetes

    BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
  • Glucokinase-related fasting hyperglycaemia

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
  • Monogenic diabetes

    BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
  • Neonatal diabetes

    BOTH monoallelic and biallelic, autosomal or pseudoautosomal
  • Intellectual disability

  • Multi-organ autoimmune diabetes

    MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown

Disease associations (Open Targets)

  • MODY

    0.86
  • type 2 diabetes mellitus

    0.86
  • permanent neonatal diabetes mellitus 1

    0.81
  • hyperinsulinism due to glucokinase deficiency

    0.80
  • diabetes mellitus

    0.78
  • maturity-onset diabetes of the young type 2

    0.74
  • maturity-onset diabetes of the young

    0.70
  • monogenic diabetes

    0.69
  • permanent neonatal diabetes mellitus

    0.68
  • transient neonatal diabetes, dominant/recessive

    0.51

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

Protein function (UniProt)

Mitogen-activated protein kinase kinase kinase kinase 2

Serine/threonine-protein kinase which acts as an essential component of the MAP kinase signal transduction pathway. Acts as a MAPK kinase kinase kinase (MAP4K) and is an upstream activator of the stress-activated protein kinase/c-Jun N-terminal kinase (SAP/JNK) signaling pathway and to a lesser extent of the p38 MAPKs signaling pathway. Required for the efficient activation of JNKs by TRAF6-dependent stimuli, including pathogen-associated molecular patterns (PAMPs) such as polyinosine-polycytidine (poly(IC)), lipopolysaccharides (LPS), lipid A, peptidoglycan (PGN), or bacterial flagellin. To a lesser degree, IL-1 and engagement of CD40 also stimulate MAP4K2-mediated JNKs activation. The requirement for MAP4K2/GCK is most pronounced for LPS signaling, and extends to LPS stimulation of c-Jun phosphorylation and induction of IL-8. Enhances MAP3K1 oligomerization, which may relieve N-terminal mediated MAP3K1 autoinhibition and lead to activation following autophosphorylation. Also mediates the SAP/JNK signaling pathway and the p38 MAPKs signaling pathway through activation of the MAP3Ks MAP3K10/MLK2 and MAP3K11/MLK3. May play a role in the regulation of vesicle targeting or fusion. regulation of vesicle targeting or fusion. Activator of the Hippo signaling pathway which plays a pivotal role in organ size control and tumor suppression by restricting proliferation and promoting apoptosis. MAP4Ks act in parallel to and are partially redundant with STK3/MST2 and STK4/MST2 in the phosphorylation and activation of LATS1/2, and establish MAP4Ks as components of the expanded Hippo pathway (PubMed:26437443)

Curated MONDO disease pages that list GCK 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.