Journal of bioenergetics

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The α/β Interfaces of α1β1, α3β3, and F1: Domain Motions and Elastic Energy Stored during γ Rotation
Journal of bioenergetics - Tập 32 - Trang 471-484 - 2000
Yasuo Kagawa, Toshiro Hamamoto, Hitoshi Endo
ATP synthase (FoF1) consists of F1 (ATP-driven motor) and Fo (H+-driven motor). F1 is a complex of α3β3γδε subunits, and γ is the rotating cam in α3β3. Thermophilic F1 (TF1) is exceptional in that it can be crystallized as a β monomer and an α3β3 oligomer, and it is sufficiently stable to allow αβ refolding and reassembly of hybrid complexes containing 1, 2, and 3 modified α or β. The nucleotide-d...... hiện toàn bộ
Glutamate Interacts with VDAC and Modulates Opening of the Mitochondrial Permeability Transition Pore
Journal of bioenergetics - Tập 36 - Trang 179-186 - 2004
Dan Gincel, Varda Shoshan-Barmatz
The amino acid glutamate, synthesized in the mitochondria, serves multiple functions, including acting as a neurotransmitter and participating in degradative and synthetic pathways. We have previously shown that glutamate modulates the channel activity of bilayer-reconstituted voltage-dependent anion channel (VDAC). In this study, we demonstrate that glutamate also modulates the opening of the mit...... hiện toàn bộ
The inhibitors of antioxidant cell enzymes induce permeability transition in yeast mitochondria
Journal of bioenergetics - Tập 45 - Trang 491-504 - 2013
Yulia Deryabina, Elena Isakova, Alexey Antipov, Nils-Erik L. Saris
In this study we investigated the effects of exogenous and endogenous oxidative stress on mitochondrial membrane permeability transition in yeast cells. E. magnusii yeast was used in the study as it is the only yeast strain possessing a natural high-capacity Са2+ transport system. The key reactive oxygen species (ROS) detoxifying enzymes in the yeast cells - catalases (CATs) and superoxide dismuta...... hiện toàn bộ
The mechanism of lead-induced mitochondrial Ca2+ efflux
Journal of bioenergetics - Tập 19 - Trang 285-295 - 1987
Edmundo Chávez, David Jay, Concepción Bravo
Addition of Pb2+ to rat kidney mitochondria is followed by induction of several reactions: inhibition of Ca2+ uptake, collapse of the transmembrane potential, oxidation of pyridine nucleotides, and a fast release of accumulated Ca2+. When the incubation media are supplemented with ruthenium red, the effect of Pb2+ on NAD(P)H oxidation, membrane ΔΨ, and Ca2+ release are not prevented if malate-glut...... hiện toàn bộ
Electron transfer in ruthenium-modified proteins
Journal of bioenergetics - Tập 27 - Trang 295-302 - 1995
Morten J. Bjerrum, Danilo R. Casimiro, I. -Jy. Chang, Angel J. Di Bilio, Harry B. Gray, Michael G. Hill, Ralf Langen, Gary A. Mines, Lars K. Skov, Jay R. Winkler, Deborah S. Wuttke
Photochemical techniques have been used to measure the kinetics of intramolecular electron transfer in Ru(bpy)2(im)(His)2+-modified (bpy = 2,2′-bipyridine; im = imidazole) cytochromec and azurin. A driving-force study with the His33 derivatives of cytochromec indicates that the reorganization energy (γ) for Fe2+→Ru3+ ET reactions is 0.8 eV. Reductions of the ferriheme by either an excited complex,...... hiện toàn bộ
Nhiệt độ thấp làm thay đổi thành phần lipid màng plasma và hoạt động ATPase của trái dứa trong quá trình phát triển bệnh đen lòng Dịch bởi AI
Journal of bioenergetics - Tập 46 - Trang 59-69 - 2014
Yuchan Zhou, Xiaoping Pan, Hongxia Qu, Steven J. R. Underhill
Màng plasma (PM) đóng vai trò trung tâm trong việc kích hoạt các phản ứng ban đầu với tổn thương do lạnh và duy trì sự cân bằng tế bào. Việc đặc trưng phản ứng của lipid màng đối với nhiệt độ thấp có thể cung cấp thông tin quan trọng để xác định các yếu tố nguyên nhân sớm góp phần gây ra tổn thương do lạnh. Để làm điều này, thành phần lipid màng PM và hoạt động ATPase được đánh giá trong trái dứa ...... hiện toàn bộ
#màng plasma #lipid #hoạt động ATPase #dứa #bệnh đen lòng #nhiệt độ thấp
HIF-1 mediates the Warburg effect in clear cell renal carcinoma
Journal of bioenergetics - - 2007
Gregg L. Semenza
Electron transport chain dysfunction by H2O2 is linked to increased reactive oxygen species production and iron mobilization by lipoperoxidation: studies using Saccharomyces cerevisiae mitochondria
Journal of bioenergetics - Tập 43 - Trang 135-147 - 2011
Christian Cortés-Rojo, Mirella Estrada-Villagómez, Elizabeth Calderón-Cortés, Mónica Clemente-Guerrero, Ricardo Mejía-Zepeda, Istvan Boldogh, Alfredo Saavedra-Molina
The mitochondrial electron transport chain (ETC) contains thiol groups (−SH) which are reversibly oxidized to modulate ETC function during H2O2 overproduction. Since deleterious effects of H2O2 are not limited to –SH oxidation, due to the formation of other H2O2-derived species, some processes like lipoperoxidation could enhance the effects of H2O2 over ETC enzymes, disrupt their modulation by –SH...... hiện toàn bộ
Effect of membrane potential on equilibrium poise between cytochromea and cytochromec in rat liver mitochondria
Journal of bioenergetics - - 1970
Peter Hinkle, Peter Mitchell
The object of this work was to test the suggestion that the equilibrium poise between cytochromea and cytochromec in mitochondria might be influenced by the membrane potential. ...... hiện toàn bộ
Erratum to: Linking alpha-synuclein properties with oxidation: a hypothesis on a mechanism underling cellular aggregation
Journal of bioenergetics - Tập 46 - Trang 157-157 - 2014
Suzanne Scarlata, Urszula Golebiewska
Tổng số: 1,745   
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