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EARS2

Chr 16p12.2

glutamyl-tRNA synthetase 2, mitochondrial

Aliases:
KIAA1970, MSE1, mtGlnRS
MANE:
ENST00000449606.7

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Early onset or syndromic epilepsy

    BIALLELIC, autosomal or pseudoautosomal
  • Fetal anomalies

    BIALLELIC, autosomal or pseudoautosomal
  • Inherited white matter disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Intellectual disability

    BIALLELIC, autosomal or pseudoautosomal
  • Likely inborn error of metabolism

    BIALLELIC, autosomal or pseudoautosomal
  • Mitochondrial disorders

    BIALLELIC, autosomal or pseudoautosomal
  • Possible mitochondrial disorder - nuclear genes

    BIALLELIC, autosomal or pseudoautosomal
  • Undiagnosed metabolic disorders

    BIALLELIC, autosomal or pseudoautosomal

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Disease associations (Open Targets)

  • Leukoencephalopathy - thalamus and brainstem anomalies - high lactate

    0.83
  • leukoencephalopathy-thalamus and brainstem anomalies-high lactate syndrome

    0.75
  • hereditary disease

    0.47
  • mitochondrial disease

    0.41
  • inborn mitochondrial metabolism disorder

    0.37
  • Leigh syndrome

    0.37
  • epilepsy

    0.37
  • Global developmental delay

    0.34
  • Limb tremor

    0.34
  • Abnormal facial shape

    0.34

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

Protein function (UniProt)

Nondiscriminating glutamyl-tRNA synthetase EARS2, mitochondrial

Non-discriminating glutamyl-tRNA synthetase that catalyzes aminoacylation of both mitochondrial tRNA(Glu) and tRNA(Gln) and participates in RNA aminoacylation for mitochondrial protein translation (PubMed:19805282). Attachs glutamate to tRNA(Glu) or tRNA(Gln) in a two-step reaction: glutamate is first activated by ATP to form Glu-AMP and then transferred to the acceptor end of tRNA(Glu) or tRNA(Gln) (PubMed:19805282). In vitro, cytoplasmic tRNA(Gln) is slightly glutamylated, but with low activity (PubMed:19805282)

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.