ArticleBiophysical journal1998
The transducer protein HtrII modulates the lifetimes of sensory rhodopsin II photointermediates.
Article in Biophysical journal, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed, 42 citations in OpenAlex.
- Surface Density-Dependent Interactions between Photoactivated Sensory Rhodopsin 2 and Its Transducer.ACS omega · 2026Article
- Low pH structure of heliorhodopsin reveals chloride binding site and intramolecular signaling pathway.Scientific reports · 2022Article
- Lipid Dynamics in Diisobutylene-Maleic Acid (DIBMA) Lipid Particles in Presence of Sensory Rhodopsin II.International journal of molecular sciences · 2021Article
- Overexpression of Different Types of Microbial Rhodopsins with a Highly Expressible Bacteriorhodopsin from Haloarcula marismortui as a Single Protein in E. coli.Scientific reports · 2018Article
- Opposite displacement of helix F in attractant and repellent signaling by sensory rhodopsin-Htr complexes.The Journal of biological chemistry · 2011Article
- The photochemical reaction cycle and photoinduced proton transfer of sensory rhodopsin II (Phoborhodopsin) from Halobacterium salinarum.Biophysical journal · 2010Article
- Laser-induced transient grating analysis of dynamics of interaction between sensory rhodopsin II D75N and the HtrII transducer.Biophysical journal · 2007Article
- New insights into metabolic properties of marine bacteria encoding proteorhodopsins.PLoS biology · 2005Article
- Time-resolved detection of sensory rhodopsin II-transducer interaction.Biophysical journal · 2004Article
- An archaeal photosignal-transducing module mediates phototaxis in Escherichia coli.Journal of bacteriology · 2001Article
- Photo-induced proton transport of pharaonis phoborhodopsin (sensory rhodopsin II) is ceased by association with the transducer.Biophysical journal · 2001Article
- The M intermediate of Pharaonis phoborhodopsin is photoactive.Biophysical journal · 2000Article
- Sensory rhodopsin II from the haloalkaliphilic natronobacterium pharaonis: light-activated proton transfer reactions.Biophysical journal · 2000Article
- Time-resolved absorption and photothermal measurements with recombinant sensory rhodopsin II from Natronobacterium pharaonis.Biophysical journal · 1999Article
- Proton circulation during the photocycle of sensory rhodopsin II.Biophysical journal · 1999Article
- Bioenergetics of the Archaea.Microbiology and molecular biology reviews : MMBR · 1999Review
- The specificity of interaction of archaeal transducers with their cognate sensory rhodopsins is determined by their transmembrane helices.Proceedings of the National Academy of Sciences of the United States of America · 1999Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
We studied the photochemical reaction cycle of sensory rhodopsin II (SRII) by flash photolysis of Halobacterium salinarum membranes genetically engineered to contain or to lack its transducer protein HtrII. Flash photolysis data from membranes containing HtrII were fit well in the 10 micros-10 s range by three rate constants and a linear unbranched pathway from the unphotolyzed state with 487 nm absorption maximum to a species with absorption maximum near 350 nm (M) followed by a species with maximum near 520 nm (O), as has been found in previous studies of wild-type membranes. Data from membranes devoid of HtrII exhibited similar M and O intermediates but with altered kinetics, and a third intermediate absorbing maximally near 470 nm (N) was present in an equilibrium mixture with O. The modulation of SRII photoreactions by HtrII indicates that SRII and HtrII are physically associated in a molecular complex. Arrhenius analysis shows that the largest effect of HtrII, the acceleration of O decay, is attributable to a large decrease in activation enthalpy. Based on comparison of SRII photoreactions to those of sensory rhodopsin I and bacteriorhodopsin, we interpret this kinetic effect to indicate that HtrII interacts with SRII so that it alters the reaction process involving deprotonation of Asp73, the proton acceptor from the Schiff base.
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