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SEC62

Function

Mediates post-translational transport of precursor polypeptides across endoplasmic reticulum (ER). Proposed to act as a targeting receptor for small presecretory proteins containing short and apolar signal peptides. Targets and properly positions newly synthesized presecretory proteins into the SEC61 channel-forming translocon complex, triggering channel opening for polypeptide translocation to the ER lumen.

Sequence similarities

Belongs to the SEC62 family.

Cellular localization

  • Endoplasmic reticulum membrane
  • Multi-pass membrane protein

Alternative names

  • Translocation protein SEC62
  • Translocation protein 1
  • TP-1
  • hTP-1
  • SEC62
  • TLOC1

Target type

Proteins

Molecular weight

45862Da