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Photosynthetic Reaction Center Mutagenesis via Chimeric Rescue of a Non-functional Rhodobacter capsulatus puf Operon with Sequences from Rhodobacter sphaeroides
photosynthesis recombination bacteria energy transfer antenna
2016/5/23
Photosynthetically active chimeric reaction centers which utilize genetic information from both Rhodobacter capsulatus and Rb. sphaeroides puf operons were isolated using a novel method termed chimeri...
The Effect of Very High Magnetic Fields on the Reaction Dynamics in Bacterial Reaction Centers:Implications for the Reaction Mechanism
Reactioncenter Photosynthesis Bacterialphotosynthesis Delayedfluorescence Magnetic fieldeffect (Rb. sphaeroides)
2016/5/23
Magnetic field effects have proven to be a powerful tool for elucidating the mechanism of the initial charge separation and recombination steps in bacterial photosynthesis. Since the first data were o...
The Effect of Very High Magnetic Fields on the Delayed Fluorescence from Photosynthetic Reaction Centers
Reactioncenter Photosynthesis Bacterialphotosynthesis Delayedfluorescence Magneticfieldeffect (Rb. sphaeroides)
2016/5/23
Delayed fluorescence is observed from quinone-depleted Rhodobacter sphaeroides reaction centers due to re-formation of the excited state of the special pair electron donor from the initially formed ra...
Phosphorescence from the Primary Electron Donor in Rhodobacter sphaeroides and Rhodopseudomonas viridis Reaction Centers
Triplet state donor Phosphorescence Reaction center ( Rb. sphaeroides ) ( Rps. viridis ) BChl bacteriochlorophyll EDTA ethylene-diaminetetracetic acid EPR
2016/5/20
Phosphorescence has been detected from the dimeric primary electron donor in Rhodobacter sphaeroides and Rhodopseudomonas viridis reaction centers. For Rb. sphaeroides the emission maximum occurs at 1...
Stark Effect Spectroscopy of Rhodobacter Sphaeroides and Rhodopseudomonas Viridis Reaction Centers
Biophysics Photosynthesis Electron Transfer Electroabsorption Electrochromism
2016/5/20
The nature of the initially excited state of the primary electron donor or special pair has been investigated by Stark effect spectroscopy for reaction centers from the photosynthetic bacteria Rhodops...
Effects of Nuclear Spin Polarization on Reaction Dynamics in Photosynthetic Bacterial Reaction Centers
Nuclear Spin Polarization Reaction Dynamics Photosynthetic Bacterial Reaction Centers
2016/5/20
Singlet-triplet mixing in the initial radical-pair state, P[unk]I[unk], of photosynthetic bacterial reaction centers is due to the hyperfine mechanism at low magnetic fields and both the hyperfine and...
Magnetic Field Dependence of Radical Pair Decay Kinetics and Molecular Triplet Quantum Yield in Quinone-Depleted Reaction Centers
Photosynthesis Reaction center Radical pair decay Magnetic field Picosecond spectroscopy
2016/5/20
Radical-pair decay kinetics and molecular triplet quantum yields at various magnetic fields are reported for quinone-depleted reaction centers from the photosynthetic bacterium Rhodopseudomonassphaero...
Photosynthesis involves a very large number of photochemical and chemical transformations. This review focuses on the extraordinarily rapid transport of excitation energy in the antenna pigmentprotein...
Picosecond Spectroscopic Study of Chlorophyll-Based Models for the Primary Photochemistry of Photosynthesis
Picosecond Spectroscopic Study Chlorophyll-Based Models Primary Photochemistry Photosynthesis
2016/5/20
A series of covalently linked dimers and trimers of chlorophyllide derivatives was investigated by time-resolved absorption and fluorescence spectroscopy (3-lo4 ps). For these compounds, the freeenerg...
Solution Properties of Synthetic Chlorophyllide-and Bacteriochlorophyllide-apomyoglobin Complexes
Solution Properties Chlorophyllide Bacteriochlorophyllide apomyoglobin Complexes
2016/5/20
Well-defined 1:1 complexes have been formed between apomyoglobin (apoMb) and a number of chlorophyllide derivatives. The chlorophyllides substitute for heme in the pocket of myoglobin. These include m...
车辆侧面和斜碰撞在导致乘员严重损伤的交通事故中占有相当大的比例, 但与正面碰撞事故研究相比仍缺少对车内乘员在侧面和斜碰撞中的胸部损伤生物力学的深入研究. 因此本文采用数值模型来分析这两种碰撞载荷下的人体胸部生物力学响应以及损伤相关的物理参数. 首先, 将自主开发验证的胸部、头颈部和下肢有限元模型相结合, 建立了一个完整的人体坐姿有限元模型;然后, 采用该坐姿模型模拟了文献中的7例尸体胸部侧面碰撞和...
COMPARATIVE PHYLOGEOGRAPHY OF THREE CODISTRIBUTED STOMATOPODS: ORIGINS AND TIMING OF REGIONAL LINEAGE DIVERSIFICATION IN THE CORAL TRIANGLE
Allopatric speciation biodiversity center of origin
2015/12/17
The Indonesian-Australian Archipelago is the center of the world's marine biodiversity. Although many
biogeographers have suggested that this region is a "center of origin," criticism of this theory...
Crystal structures of a group II chaperonin reveal the open and closed states associated with the protein folding cycle
Crystal structures group II chaperonin reveal closed states associated protein folding cycle
2015/12/11
Chaperonins are large protein complexes consisting of two stacked multisubunit rings, which open and close in an ATP-dependent manner to create a protected environment for protein folding. Here, we de...
Parkinson’s Disease Genes VPS35 and EIF4G1 Interact Genetically and Converge on α-Synuclein
Parkinson’s Disease Genes VPS35 EIF4G1 Interact Genetically Converge on α-Synuclein
2015/12/11
Parkinson’s Disease Genes VPS35 and EIF4G1 Interact Genetically and Converge on α-Synuclein.