SecY-SecY and SecY-SecG contacts revealed by site-specific crosslinking.

Abstract

Protein translocation across the cytoplasmic membrane of Escherichia coli is mediated by the integral membrane complex SecYEG and the peripherally bound ATPase SecA. To probe the environment of the cytoplasmic domains of SecY within the SecYEG complex, we introduced single cysteine residues in each of the six cytoplasmic domains. Neighbouring SecY molecules… (More)

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