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TOMM20

Function

Central component of the receptor complex responsible for the recognition and translocation of cytosolically synthesized mitochondrial preproteins. Together with TOM22 functions as the transit peptide receptor at the surface of the mitochondrion outer membrane and facilitates the movement of preproteins into the TOM40 translocation pore (By similarity). Required for the translocation across the mitochondrial outer membrane of cytochrome P450 monooxygenases.

Post-translational modifications

Ubiquitinated by PRKN during mitophagy, leading to its degradation and enhancement of mitophagy. Deubiquitinated by USP30.

Sequence similarities

Belongs to the Tom20 family.

Cellular localization

  • Mitochondrion outer membrane
  • Single-pass membrane protein

Alternative names

  • Mitochondrial import receptor subunit TOM20 homolog
  • Mitochondrial 20 kDa outer membrane protein
  • Outer mitochondrial membrane receptor Tom20
  • TOMM20
  • KIAA0016

Target type

Proteins

Primary research area

Neuroscience

Molecular weight

16298Da