Article
Structural interactions between transmembrane helices 4 and 5 of subunit a and the subunit c ring of Escherichia coli ATP synthase.
The Journal of biological chemistry - 14 Nov 2008
Moore Kyle J, Fillingame Robert H
Abstract excerpt
Subunit a plays a key role in promoting H+ transport and the coupled rotary motion of the subunit c ring in F1F0-ATP synthase. H+ binding and release occur at Asp-61 in the middle of the second transmembrane helix (TMH) of F0 subunit c. H+ are thought to reach Asp-61 via aqueous pathways mapping to the surfaces of TMHs 2-5 of subunit a. TMH4 of subunit a is thought to pack close to TMH2 of subunit c based upon...
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