Results 131 to 140 of about 5,688 (181)

Microsecond Time-Resolved Cryo-EM Based on Jet Vitrification

Haubner M, Williams HM, Hruby J, Straub MS, Guskov A, Kovalev K, Drabbels M, Lorenz UJ.   +7 more
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Photocyclization

ChemInform, 2003
AbstractFor Abstract see ChemInform Abstract in Full Text.
Steven A. Fleming, Susan C. Ward, Can Mao, Ephraim E. Parent   +3 more
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Reorientations in the Bacteriorhodopsin Photocycle

Biochemistry, 1994
Reversible photoinduced reorientations of bacteriorhodopsin have been detected in suspensions of the purple membrane of Halobacterium salinarium. The anisotropy in bacteriorhodopsin during the nanosecond through millisecond stages of the photocycle was measured by time-resolved linear dichroism and transient absorption measurements.
Q, Song, G S, Harms, C, Wan, C K, Johnson   +3 more
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Crystallography of a Photocycle Intermediate

Science, 1998
In their report “Energy transduction on the nanosecond time scale: Early structural events in a xanthopsin photocycle” (20 Mar., p. 1946), Benjamin Perman et al . discuss how proteins change when light energy is converted into a chemical signal in a halophilic phototrophic bacterium ([1][1 ...
T E, Meyer, G, Tollin, M A, Cusanovich
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The Photocycles of Bacteriorhodopsin

Israel Journal of Chemistry, 1995
AbstractThe photoisomerization of all‐trans‐retinal of bacteriorhodopsin to 13‐cisgives rise to a series of unstable states that thermally interconvert on the picosecond to millisecond timescale, and ultimately decay back to the initial state. Since this “photocycle” drives the translocation of a proton from the cytoplasmic to the extracellular side of
Janos K. Lanyi, György Váró
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Photocyclization of cinnamylnaphthols

Tetrahedron, 1998
Abstract The naphtholic chromophore is responsible for the photophysical and photochemical properties of cinnamylnaphthols 13, f. Both fluorescence emission and photocyclization occur from the naphtholic singlet excited states. The formation of five- and six- membered ring products (2e and 3e, f) is shown to involve a proton transfer mechanism.
M. Consuelo Jiménez, Pablo Leal, Miguel A. Miranda, Juan C. Scaiano, Rosa Tormos   +4 more
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Photocyclization of terthiophenes

The Journal of Organic Chemistry, 1989
Obtention de benzo [1,2-b:3,4-b':5,6-b″]- et -[1,2-b:4,3-b':5,6-b″] trithiophene.
Nimal Jayasuriya, Jacques Kagan, John E. Owens, Eugene P. Kornak, Daniel M. Perrine   +4 more
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On the Role of Tyrosine in the Photocycle of Bacteriorhodopsin

BioScience, 1982
Abstract ‐The rate of formation of the M intermediate (kM) in the photocycles of bacteriorhodopsin (bR570) and of nitrated bacteriorhodopsin (bR532n), is measured over the range between pH 6.5 and 11.5. In the case of bR570, kM is markedly pH dependent, exhibiting a titration‐like curve with pK? 10.3.
V. Rosenbach, R. Goldberg, C. Gilon, M. Ottolenghi   +3 more
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On the photocycle of 4-ketobacteriorhodopsin

Biochemistry (Moscow), 2012
The artificial pigment 4-ketobacteriorhodopsin is an interesting analog of bacteriorhodopsin. Arguments concerning the scheme of the photocycle of 4-ketobacteriorhodopsin are discussed.
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Evolution of the Channelrhodopsin Photocycle Model

ChemPhysChem, 2010
AbstractMany processes in green algae are under control of rhodopsin‐type photoreceptors, but only a few have been studied at least in some detail in the past. Up to now, functionally and biochemically only the channelrhodpsins ChR1 and ChR2 are characterized.
Katja, Stehfest, Peter, Hegemann
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