Nature Communications (Jan 2019)

GORAB scaffolds COPI at the trans-Golgi for efficient enzyme recycling and correct protein glycosylation

  • Tomasz M. Witkos,
  • Wing Lee Chan,
  • Merja Joensuu,
  • Manuel Rhiel,
  • Ed Pallister,
  • Jane Thomas-Oates,
  • A. Paul Mould,
  • Alex A. Mironov,
  • Christophe Biot,
  • Yann Guerardel,
  • Willy Morelle,
  • Daniel Ungar,
  • Felix T. Wieland,
  • Eija Jokitalo,
  • May Tassabehji,
  • Uwe Kornak,
  • Martin Lowe

DOI
https://doi.org/10.1038/s41467-018-08044-6
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 18

Abstract

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COPI is recruited to the membrane by binding to Arf GTPases. Here the authors find that GORAB, a trans-Golgi protein, promotes COPI recruitment by forming membrane domains that also contain the COPI-interacting protein Scyl1, which is required for efficient glycosylation of cargo proteins.