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TIMM8A

Chr Xq22.1

translocase of inner mitochondrial membrane 8A

Aliases:
DDP, MTS
MANE:
ENST00000372902.4

Annotations refreshed 1 month ago.

Predicted protein structure

Clinical relevance (Genomics England PanelApp)

Diagnostic Grade (Green)

  • Adult onset dystonia, chorea or related movement disorder

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Childhood onset dystonia, chorea or related movement disorder

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

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Likely inborn error of metabolism

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

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Monogenic hearing loss

    X-LINKED: hemizygous mutation in males, biallelic mutations in females
  • Possible mitochondrial disorder - nuclear genes

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

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

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Disease associations (Open Targets)

  • deafness dystonia syndrome

    0.77
  • Mohr-Tranebjaerg syndrome

    0.76
  • hearing loss disorder

    0.37
  • eye disorder

    0.37
  • hereditary disease

    0.30
  • auditory neuropathy

    0.27
  • breast carcinoma

    0.10
  • breast cancer

    0.10
  • osteoarthritis, knee

    0.09
  • essential tremor

    0.08

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

Protein function (UniProt)

Mitochondrial import inner membrane translocase subunit Tim8 A

Mitochondrial intermembrane chaperone that participates in the import and insertion of some multi-pass transmembrane proteins into the mitochondrial inner membrane. Also required for the transfer of beta-barrel precursors from the TOM complex to the sorting and assembly machinery (SAM complex) of the outer membrane. Acts as a chaperone-like protein that protects the hydrophobic precursors from aggregation and guide them through the mitochondrial intermembrane space. The TIMM8-TIMM13 complex mediates the import of proteins such as TIMM23, SLC25A12/ARALAR1 and SLC25A13/ARALAR2, while the predominant TIMM9-TIMM10 70 kDa complex mediates the import of much more proteins. Probably necessary for normal neurologic development

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.