Article
The titrations of Asp-85 and of the cation binding residues in bacteriorhodopsin are not coupled.
FEBS letters - 26 Mar 1999
Eliash T, Ottolenghi M, Sheves M
Abstract excerpt
An outstanding problem relating to the structure and function of bacteriorhodopsin (bR), which is the only protein in the purple membrane of the photosynthetic microorganism Halobacterium salinarium, is the relation between the titration of Asp-85 and the binding/unbinding of metal cations. An extensively accepted working hypothesis has been that the two titrations are coupled, namely, protonation of Asp-85...
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