Single-Molecule Studies on the Protein Translocon

Anne-Bart Seinen, Arnold J M Driessen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Single-molecule studies provide unprecedented details about processes that are difficult to grasp by bulk biochemical assays that yield ensemble-averaged results. One of these processes is the translocation and insertion of proteins across and into the bacterial cytoplasmic membrane. This process is facilitated by the universally conserved secretion (Sec) system, a multi-subunit membrane protein complex that consists of dissociable cytoplasmic targeting components, a molecular motor, a protein-conducting membrane pore, and accessory membrane proteins. Here, we review recent insights into the mechanisms of protein translocation and membrane protein insertion from single-molecule studies.

Original languageEnglish
Pages (from-to)185-207
Number of pages23
JournalAnnual Review of Biophysics
Volume48
DOIs
Publication statusPublished - 2019

Keywords

  • SIGNAL-RECOGNITION PARTICLE
  • INDEPENDENT GENE DUPLICATIONS
  • INTEGRAL MEMBRANE-PROTEIN
  • PROTON-MOTIVE-FORCE
  • X-RAY-STRUCTURE
  • ESCHERICHIA-COLI
  • CRYSTAL-STRUCTURE
  • DIMERIC SECA
  • PREPROTEIN TRANSLOCATION
  • CONFORMATIONAL-CHANGES

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