Covalently Linked Trimers of RND (Resistance-Nodulation-Division) Efflux Transporters to Study Their Mechanism of Action: Escherichia coli AcrB Multidrug Exporter as an Example.

Abstract excerpt

Transporters undergo large conformational changes in their functional cycle. RND (Resistance-Nodulation-Division) family efflux transporters usually exist as homotrimers, and each protomer was proposed to undergo a cycle of conformational changes in succession so that at any given time the trimer would contain three protomers of different conformations, the functionally rotating mechanism of transport. This...

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