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Article

Structural changes of sensory rhodopsin I and its transducer protein are dependent on the protonated state of Asp76.

Biochemistry - 4 Mar 2008

Furutani Yuji, Takahashi Hazuki, Sasaki Jun, Sudo Yuki, Spudich John L, Kandori Hideki

Abstract excerpt

Sensory rhodopsin I (SRI) functions in both positive and negative phototaxis in complex with halobacterial transducer protein I (HtrI). Orange light activation of SRI results in deprotonation of the retinylidene chromophore of SRI to produce the S 373 photocycle intermediate, the signaling state for positive phototaxis. In this study, we observed pH dependence on structural coupling between the two molecules upon...

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PMID: 18220358
DOI: 10.1021/bi702050c

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SRI

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Structural changes of sensory rhodopsin I and its transducer protein are dependent on the protonated state of Asp76.PMID 18220358Read ↗

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