Making your (Dsb) connection: the redox pathway bringing reducing equivalents from bacterial cytoplasm, across the inner membrane, to the three reductive Dsb pathways in the otherwise oxidizing periplasm (see scheme; TR=thioredoxin reductase, Trx=thioredoxin) is reconstituted from purified components. Transfer of reducing equivalents across the membrane is demonstrated and underlying mechanistic details are revealed.
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