Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1979414 | Current Opinion in Structural Biology | 2010 | 8 Pages |
Abstract
Members of the mitochondrial carrier family are involved in transporting keto acids, amino acids, nucleotides, inorganic ions and co-factors across the mitochondrial inner membrane. The transporters are thought to share the same structural fold, which consists of six trans-membrane α-helices and three matrix helices, arranged with threefold pseudo-symmetry. During the transport cycle two salt bridge networks on either side of the central cavity might regulate access to a single substrate binding site in an alternating fashion. In the case of proton-substrate symporters the substrate binding sites contain also negatively charged residues that are proposed to be involved in proton transport.
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Authors
Edmund RS Kunji, Alan J Robinson,