Skip to content
GenoLensGenoLens

SMG8

Chr 17q22

SMG8 nonsense mediated mRNA decay factor

Aliases:
FLJ10587, FLJ23205
MANE:
ENST00000300917.10

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • DDG2P

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Severe microcephaly

    BIALLELIC, autosomal or pseudoautosomal
  • Structural eye disease

    BIALLELIC, autosomal or pseudoautosomal
  • Bilateral congenital or childhood onset cataracts

    BIALLELIC, autosomal or pseudoautosomal

Disease associations (Open Targets)

  • Alzahrani-Kuwahara syndrome

    0.73
  • microcephaly

    0.48
  • Abnormal facial shape

    0.48
  • short stature due to GHSR deficiency

    0.48
  • Intellectual disability

    0.48
  • Short stature

    0.48
  • neurodegenerative disease

    0.48
  • Parkinson disease

    0.45
  • lysosomal storage disease

    0.45
  • Alzheimer disease

    0.45

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

Protein function (UniProt)

Nonsense-mediated mRNA decay factor SMG8

Involved in nonsense-mediated decay (NMD) of mRNAs containing premature stop codons. Is recruited by release factors to stalled ribosomes together with SMG1 and SMG9 (forming the SMG1C protein kinase complex) and, in the SMG1C complex, is required to mediate the recruitment of SMG1 to the ribosome:SURF complex and to suppress SMG1 kinase activity until the ribosome:SURF complex locates the exon junction complex (EJC). Acts as a regulator of kinase activity

Curated MONDO disease pages that list SMG8 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.