Evidence for proton transfer from Glu-46 to the chromophore during the photocycle of photoactive yellow protein.

Abstract

Photoactive yellow protein (PYP) belongs to the novel group of eubacterial photoreceptor proteins. To fully understand its light signal transduction mechanisms, elucidation of the intramolecular pathway of the internal proton is indispensable because it closely correlates with the changes in the hydrogen-bonding network, which is likely to induce the… (More)

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