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Article
Open AccessAn evolutionarily conserved iron-sulfur cluster underlies redox sensory function of the Chloroplast Sensor Kinase
Photosynthetic efficiency depends on equal light energy conversion by two spectrally distinct, serially-connected photosystems. The redox state of the plastoquinone pool, located between the two photosystems, ...
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Article
Structure–function of the cytochrome b6f lipoprotein complex: a scientific odyssey and personal perspective
Structure–function studies of the cytochrome b6f complex, the central hetero-oligomeric membrane protein complex in the electron transport chain of oxygenic photosynthesis, which formed the basis for a high-resol...
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Living Reference Work Entry In depth
Cytochrome b6f Complex
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Article
David W. Krogmann, 1931–2016
We provide here reflections on the life and career of David W. Krogmann (1931–2016), a great scientist, a mentor and an outstanding teacher, who had a remarkable impact on anyone who came in contact with him. ...
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Article
Structural insight into the role of the Ton complex in energy transduction
In Gram-negative bacteria, outer membrane transporters import nutrients by coupling to an inner membrane protein complex called the Ton complex. The Ton complex consists of TonB, ExbB, and ExbD, and uses the p...
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Book
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Chapter
Structure-Function of the Cytochrome b 6 f Lipoprotein Complex
The cytochrome b 6 f complex (f, derived from “leaf” in Latin, “folium,” or French, “feuille”, see D. S. Bendall, this volume) is responsible for the proton-coupled electron transfer reactions that link the two l...
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Chapter
Mechanisms of Superoxide Generation and Signaling in Cytochrome bc Complexes
The mechanisms of action of reactive oxygen species (ROS) in plant and animal cells, in chloroplasts, mitochondria, and other sub-cellular compartments such as the endoplasmic reticulum and nucleus, which resu...
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Reference Work Entry In depth
Cytochrome b 6 f Complex
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Protocol
Purification and Crystallization of the Cyanobacterial Cytochrome b 6 f Complex
The cytochrome b 6 f complex from the filamentous cyanobacteria (Mastigocladus laminosus, Nostoc sp. PCC 7120) and spinach chloroplasts has been purified as a homo-dimer. Electrospray ...
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Chapter
Chapter 6 The Enigmatic Chlorophyll a Molecule in the Cytochrome b 6 f Complex
The structure of the cytochrome b 6 f complex, which functions in the “dark” reactions of oxygenic photosynthesis contains two pigment molecules, one molecule of chlorophyll a and β-ca...
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Chapter and Conference Paper
Structure of the Cytochrome b 6 f Complex: n-Side Donor Pathway to the Plastoquinone Pool
Three Prosthetic Groups, Heme CN, Chl A, And β-Carotene Were Identified In Crystal Structures Of The Cytochrome B 6 F Complex In The Thermophilic Cyanobacterium, M. Laminosus (Kurisu Et Al. 2003) An...
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Chapter and Conference Paper
Ultrafast Optical Studies of the Cytochrome b 6 f Complex in Solution and Crystalline States
The cytochrome b 6 f complex of oxygenic photosynthesis contains a single chlorophyll a molecule. The singlet excited state of the Chl a. molecule is quenched by the surrounding protei...
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Article
Problems in Obtaining Diffraction-quality Crystals of Hetero-oligomeric Integral Membrane Proteins
The major barrier responsible for the slow pace of structure determination of integral membrane proteins is the difficulty of crystallizing detergent-solubilized hydrophobic proteins, particularly hetero-oligo...
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Article
Structure of the cytochrome b6f complex: new prosthetic groups, Q-space, and the ‘hors d’oeuvres hypothesis’ for assembly of the complex
3-Å crystal structures of the cytochrome b6f complex have provided a structural framework for the photosynthetic electron transport chain. The structures of the 220,000 molecular weight dimeric cytochrome b6f com...
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Chapter
Ironies in photosynthetic electron transport: a personal perspective
In this brief personal perspective, studies, mainly in my laboratory, directed toward understanding of the structure and function of the Fe-metalloprotein electron transport carriers of oxygenic photosynthesis...
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Article
Ironies in Photosynthetic Electron Transport: A Personal Perspective
In this brief personal perspective, studies, mainly in my laboratory, directed toward understanding of the structure and function of the Fe-metalloprotein electron transport carriers of oxygenic photosynthesis...
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Protocol
Purification and Crystallization of the Cytochrome b 6 f Complex in Oxygenic Photosynthesis
The cytochrome b 6 f complex from the thermophilic cyanobacterium Mastigocladus laminosus and spinach chloroplasts has been purified as a dimeric species. It was found by electrospray ...
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Article
The structure of BtuB with bound colicin E3 R-domain implies a translocon
Cellular import of colicin E3 is initiated by the Escherichia coli outer membrane cobalamin transporter, BtuB. The 135-residue 100-Å coiled-coil receptor-binding domain (R135) of colicin E3 forms a 1:1 complex wi...
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Article
The best offense is a good defense
How does a cell employ a lethal toxin against neighboring cells of the same species, yet provide nearly perfect protection for itself? Two new structures offer insights into the nature of interactions between ...