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Energetics of Primary Charge Separation in Bacterial Photosynthetic Reaction Center Mutants:Triplet Decay in Large Magnetic Fields
horseradish peroxidase lignin peroxidase enzymatic oxidations N-demethylation methylene blue azure B azure C
2016/5/24
The triplet state of aromatic molecules forms and decays by intersystem crossing, as originally demonstrated by Kasha and Lewis. By contrast, the triplet state of the primary electron donor, 3 P, in p...
The Mechanism of Triplet Energy Transfer from the Special Pair to the Carotenoid in Bacterial Reaction Centers
Triplet Energy Transfer Carotenoid Bacterial Reaction Centers
2016/5/23
The kinetics of triplet energy transfer from the primary electron donor P, a bacteriochlorophyll dimer, to the carotenoid were measured in the M182HL mutant of Rhodobacter sphaeroides photosynthetic r...
Temperature Dependece of the Qy Resonance Raman Spectra of Bacteriochlorophylls,the Primary Electron Donor,and Bacteriopheophytins in the Bacterial Photosynthetic Reaction Center
Bacteriochlorophylls chemistry Electron Transport Infrared Rays Light-Harvesting Protein Complexes Pheophytins chemistry Photosynthetic Reaction Center Complex Proteins chemistry Research Support, U.S. Gov't, Non-P.H.S. Research Support,U.S. Gov't,P.H.S. Rhodobacter sphaeroides chemistry Spectrophotometry
2016/5/23
Qy-excited resonance Raman spectra of the accessory bacteriochlorophylls (B), the bacteriopheophytins (H), and the primary electron donor (P) in the bacterial photosynthetic reaction center (RC) of Rh...
Mg Coordination by Amino Acid Side Chains is Not Required for Assembly and Function of the Special Pair in Bacterial Photosynthetic Reaction Centers
Amino Acids Fourier Analysis Light-Harvesting Protein Complexes Magnesium xidation-Reduction Photosynthetic Reaction Center Complex Proteins Spectrometry,Fluorescence Spectrum Analysis, Raman
2016/5/23
A conserved histidine serves as the axial ligand to the Mg of bacteriochlorophylls in the photosynthetic reaction center (RC) and many other photosynthetic systems. The histidine axial ligands to each...
Excited States,Electron Transfer Reactions,and Intermediates in Bacterial Photosynthetic Reaction Centers
inorganic, organic, physical and analytical chemistry basic biological sciences photosynthetic reaction centers electron transfer excited states bacteria crystal structure data analysis photosynthesis reaction intermediates
2016/5/23
The three-dimensional structure of a photosynthetic reaction center has recently been obtained at atomic resolution using x-ray crystallography by Deisenhofer, Epp, Miki, Huber, and Michel (J. Mol. Bi...
Energetics of Initial Charge Separation in Bacterial Photosynthesis:The Triplet Decay Rate in Very High Magnetic Fields
Photosynthesis Electron transfer Reaction center Magnetic field effect primary electron acceptor primary electron donor quinone
2016/5/20
The triplet state of the primary electron donor is formed in bacterial reaction centers when electron transfer to the quinone is blocked. The relative quantum yield of formation and the rate of decay ...
Seeking the primary sense: A biochemical and biophysical study of the signaling mechanism of bacterial chemotaxis
Genetics biochemistry biophysics membrane cytoplasmic proteins bacteria and chemical serine receptors e. coli
2014/12/11
Genetic, biochemical, and biophysical methods have been adopted to characterize the interactions between ligand and transmembrane receptor, between receptor and cytoplasmic proteins, and between cytop...
Structural changes between signaling states of bacterial chemoreceptors probed by solid -state NMR and hydrogen exchange
Structure of membrane protein lipid environment membrane signals bacteria chemical sensors membrane domains solid-state nuclear magnetic resonance (NMR)
2014/12/11
The limitations of structural studies of membrane proteins imposed by the lipid environment has made it difficult to determine the molecular mechanism of transmembrane signaling. For the bacterial che...
Receptor clusters and dynamics in kinase regulation in bacterial chemotaxis
Signal transduction bacterial chemotaxis systems membrane membrane protein cytoplasmic form complex signaling proteins
2014/12/11
Signal transduction in bacterial chemotaxis system is mediated by a family of transmembrane proteins that are clustered in the membrane and form noncovalent complexes with cytoplasmic signaling protei...