YidC-mediated membrane insertion of assembly mutants of subunit C of the F1F0 ATPase

Stefan Kol, Bryony R. Turrell, Jeanine de Keyzer, Martin van der Laan, Nico Nouwen, Arnold J. M. Driessen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

32 Citations (Scopus)
302 Downloads (Pure)

Abstract

YidC is a member of the OxaI family of membrane proteins that has been implicated in the membrane insertion of inner membrane proteins in Escherichia coli. We have recently demonstrated that proteoliposomes containing only YidC support both the stable membrane insertion and the oligomerization of the c subunit of the F1F0 ATP synthase (F(0)c). Here we have shown that two mutants of F(0)c unable to form a functional F1F0 ATPase interact with YidC, require YidC for membrane insertion, but fail to oligomerize. These data show that oligomerization is not essential for the stable YidC- dependent membrane insertion of F(0)c consistent with a function of YidC as a membrane protein insertase.

Original languageEnglish
Pages (from-to)29762-29768
Number of pages7
JournalThe Journal of Biological Chemistry
Volume281
Issue number40
DOIs
Publication statusPublished - 6-Oct-2006

Keywords

  • COLI INNER MEMBRANE
  • ESCHERICHIA-COLI
  • PROTEIN INSERTION
  • ADENOSINE-TRIPHOSPHATASE
  • SACCHAROMYCES-CEREVISIAE
  • F-0 COMPLEX
  • SYNTHASE
  • BIOGENESIS
  • SECYEG
  • REQUIREMENTS

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