Understanding structure and function in the light-driven proton pump bacteriorhodopsin.

Abstract

The atomic structure of bacteriorhodopsin and the outlines of its proton transport mechanism are now available. Photoisomerization of the retinal in the chromophore creates a steric and electrostatic conflict at the retinal binding site. The free energy gain sets off a sequence of reactions in which directed proton transfers take place between the… (More)

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