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EIF2S3

Chr Xp22.11

eukaryotic translation initiation factor 2 subunit gamma

Aliases:
EIF2gamma, EIF2
MANE:
ENST00000253039.9

Annotations refreshed 10 hours ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Clefting

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • DDG2P

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Early onset or syndromic epilepsy

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Fetal anomalies

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Intellectual disability

    X-LINKED: hemizygous mutation in males, monoallelic mutations in females may cause disease (may be less severe, later onset than males)
  • Neonatal diabetes

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Severe microcephaly

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Pituitary hormone deficiency

    X-LINKED: hemizygous mutation in males, biallelic mutations in females

Disease associations (Open Targets)

  • MEHMO syndrome

    0.80
  • X-linked syndromic intellectual disability

    0.46
  • diabetes mellitus

    0.37
  • male reproductive organ cancer

    0.27
  • benign prostatic hyperplasia

    0.27
  • hypopituitarism

    0.19
  • hereditary disease

    0.19
  • Glucose intolerance

    0.19
  • non-syndromic male infertility due to sperm motility disorder

    0.09
  • spermatogenic failure

    0.09

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

Protein function (UniProt)

Eukaryotic translation initiation factor 2 subunit 3

Member of the eIF2 complex that functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA (PubMed:31836389). This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form the 43S pre-initiation complex (43S PIC) (By similarity). Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF2 and release of an eIF2-GDP binary complex (By similarity). In order for eIF2 to recycle and catalyze another round of initiation, the GDP bound to eIF2 must exchange with GTP by way of a reaction catalyzed by eIF-2B (By similarity)

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.