Abstract:The selective transport of specific substrates across the membrane is an essential part of biology.Organisms have evolved a basic mechanism for the transport of ions and small molecule such as sugars across the membrane. This mechanism is termed 'alternating access' and involves the alternating exposure of a substrate-binding site to either side of the membrane. While the molecular details of 'alternating access' have been revealed for a number of different transporters, this scheme seems infeasible for the tr… Show more
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