Plant uncoupling mitochondrial protein activity in mitochondria isolated from tomatoes at different stages of ripening.

abstract：:The iron-sulfur protein of the cytochrome bc1 complex oxidizes ubiquinol at center P in the protonmotive Q cycle mechanism, transferring one electron to cytochrome c1 and generating a low-potential ubisemiquinone anion which reduces the low-potential cytochrome b-566 heme group. In order to catalyze this divergent tra...

journal_title：Journal of bioenergetics and biomembranes

authors： Graham LA,Brandt U,Sargent JS,Trumpower BL

更新日期：1993-06-01 00:00:00

abstract：:Thirteen different polypeptide subunits, each in one copy, five phosphatidyl ethanolamines and three phosphatidyl glycerols, two hemes A, three Cu ions, one Mg ion, and one Zn ion are detectable in the crystal structure of bovine heart cytochrome c oxidase in the fully oxidized form at 2.8 A resolution. A propionate o...

journal_title：Journal of bioenergetics and biomembranes

authors： Yoshikawa S,Shinzawa-Itoh K,Tsukihara T

更新日期：1998-02-01 00:00:00

abstract：:The F1F0 complex of Paracoccus denitrificans (PdF1F0) is the fastest ATP synthase but the slowest ATPase. Sulfite exerts maximal activation of the PdF1F0-ATPase (Pacheco-Moisés, F., García, J. J., Rodríguez-Zavala, J. S., and Moreno-Sánchez, R. (2000). Eur J. Biochem. 267, 993-1000) but its effect on the PdF1F0-ATP sy...

journal_title：Journal of bioenergetics and biomembranes

authors： Pacheco-Moisés F,Minauro-Sanmiguel F,Bravo C,García JJ

更新日期：2002-08-01 00:00:00

abstract：:Plasma membrane vesicles of HeLa cells are characterized by a drug-responsive oxidation of NADH. The NADH oxidation takes place in an argon or nitrogen atmosphere and in samples purged of oxygen. Direct assay of protein thiols by reaction with 5,5'-dithiobis-(2-nitrobenzoic acid) (DTNB; Ellman's reagent), suggests tha...

journal_title：Journal of bioenergetics and biomembranes

authors： Morré DJ,Chueh PJ,Lawler J,Morré DM

更新日期：1998-10-01 00:00:00

abstract：:At present there is a poor understanding of the events that lead up to neuronal apoptosis that occurs in neurodegenerative diseases and following acute ischemic episodes. Apoptosis is critical for the elimination of unwanted neurons within the developing nervous system. The Bcl-2 family of proteins contains pro- and a...

journal_title：Journal of bioenergetics and biomembranes

authors： Ward MW,Kögel D,Prehn JH

更新日期：2004-08-01 00:00:00

abstract：:Specific molecular interactions that determine many of the functions of a biomembrane have a high probability of occurring at the surface of that membrane. However, unlike their hydrophobic core, the polar-apolar interface of biomembranes has been somewhat neglected experimentally. Reasons for this are that the chemic...

journal_title：Journal of bioenergetics and biomembranes

authors： Watts A

更新日期：1987-12-01 00:00:00

abstract：:The 8-kDa subunit c of the E. coli F0 ATP-synthase proton channel was tested for Ca++ binding activity using a 45Ca++ ligand blot assay after transferring the protein from SDS-PAGE gels onto polyvinyl difluoride membranes. The purified subunit c binds 45Ca++ strongly with Ca++ binding properties very similar to those ...

journal_title：Journal of bioenergetics and biomembranes

authors： Zakharov SD,Li X,Red'ko TP,Dilley RA

更新日期：1996-12-01 00:00:00

abstract：:Succinate-driven reverse electron transport (RET) is one of the main sources of mitochondrial reactive oxygen species (mtROS) in ischemia-reperfusion injury. RET is dependent on mitochondrial membrane potential (Δψm) and transmembrane pH difference (ΔpH), components of the proton motive force (pmf); a decrease in Δψm ...

journal_title：Journal of bioenergetics and biomembranes

authors： Komlódi T,Geibl FF,Sassani M,Ambrus A,Tretter L

更新日期：2018-10-01 00:00:00

abstract：:We have studied changes in plasma membrane NAD(P)H:quinone oxidoreductases of HL-60 cells under serum withdrawal conditions, as a model to analyze cell responses to oxidative stress. Highly enriched plasma membrane fractions were obtained from cell homogenates. A major part of NADH-quinone oxidoreductase in the plasma...

journal_title：Journal of bioenergetics and biomembranes

authors： Forthoffer N,Gómez-Díaz C,Bello RI,Burón MI,Martín SF,Rodríguez-Aguilera JC,Navas P,Villalba JM

更新日期：2002-06-01 00:00:00

abstract：:N- and P/Q-type calcium channels are localized in high density in presynaptic nerve terminals and are crucial elements in neuronal excitation-secretion coupling. In addition to mediating Ca2+ entry to initiate transmitter release, they are thought to interact directly with proteins of the synaptic vesicle docking/fusi...

journal_title：Journal of bioenergetics and biomembranes

authors： Sheng ZH,Westenbroek RE,Catterall WA

更新日期：1998-08-01 00:00:00

abstract：:Phospholysine phosphohistidine inorganic pyrophosphate phosphatase (LHPP) has been recently identified as a novel inhibitor of multiple tumors; however, its role in glioblastoma (GBM) has not been investigated. This study aimed to evaluate whether LHPP exerts a potential tumor-inhibiting role in GBM. Compared with tha...

journal_title：Journal of bioenergetics and biomembranes

authors： Li C,Yang J,Wang W,Li R

更新日期：2021-02-01 00:00:00

abstract：:The adenylate kinase (AK) isoforms network plays an important role in the intracellular energy transfer processes, the maintenance of energy homeostasis, and it is a major player in AMP metabolic signaling circuits in some highly-differentiated cells. For this purpose, a rapid and sensitive method was developed that e...

journal_title：Journal of bioenergetics and biomembranes

authors： Klepinin A,Ounpuu L,Guzun R,Chekulayev V,Timohhina N,Tepp K,Shevchuk I,Schlattner U,Kaambre T

更新日期：2016-10-01 00:00:00

abstract：:Liver plasma membranes isolated from rats with chronic dietary iron overload showed a large modification of their phospholipid fatty acid composition. Specifically, a significant decrease in polyunsaturated fatty acids and a parallel increase in saturated fatty acids was observed. This pattern was consistent with the ...

journal_title：Journal of bioenergetics and biomembranes

authors： Pietrangelo A,Tripodi A,Carulli N,Tomasi A,Ceccarelli D,Ventura E,Masini A

更新日期：1989-08-01 00:00:00

abstract：:Liver mitochondria isolated from rats 24 h after a single subcutaneous injection of 8 mg thyroxine per kilogram body weight were compared with those isolated from control rats that received injections of isotonic saline at the same time. The mitochondria isolated from the thyroxine-treated rats show higher rates of en...

journal_title：Journal of bioenergetics and biomembranes

authors： Shears SB,Bronk JR

更新日期：1980-12-01 00:00:00

abstract：:In this review, I focus on the bioenergetics of the methanogenic bacteria, with particular attention directed to the roles of transmembrane electrochemical gradients of sodium and proton. In addition, the mechanism of coupling ATP synthesis to methanogenic electron transfer is addressed. Evidence is reviewed which sug...

journal_title：Journal of bioenergetics and biomembranes

authors： Lancaster JR Jr

更新日期：1989-12-01 00:00:00

abstract：:The sarcoplasmic reticulum (SR) of skeletal muscle controls the contraction-relaxation cycle by raising and lowering the myoplasmic free-Ca2+ concentration. The coupling between excitation, i.e., depolarization of sarcolemma and transverse tubule (TT) and Ca2+ release from the terminal cisternae (TC) of SR takes place...

journal_title：Journal of bioenergetics and biomembranes

authors： Volpe P

更新日期：1989-04-01 00:00:00

abstract：:Human mast cell tryptase has been shown as an activating enzyme in matrix degradation process. The previous study suggest that tryptase either alone or in joining with activation of metalloproteinases, can associate in extra cellular matrix damage and the possible destruction of the basement membrane resulting in phot...

journal_title：Journal of bioenergetics and biomembranes

authors： Wongrattanakamon P,Ampasavate C,Sirithunyalug B,Jiranusornkul S

更新日期：2018-12-01 00:00:00

abstract：:Absorbance changes at 446 nm in purified cytochrome oxidase following flash photolysis of carboxy-oxidase poised in the mixed valance state at +220 mV show biphasic kinetics. One phase corresponds to CO recombination to ferrous cytochrome a3 with an energy of activation of 9 kcal/mol; the second phase is 3-5 times fas...

journal_title：Journal of bioenergetics and biomembranes

authors： Harmon HJ

更新日期：1988-12-01 00:00:00

abstract：:P-glycoprotein (Pgp), the ATP-binding cassette (ABC) transporter, confers multidrug resistance to cancer cells by extruding cytotoxic natural product amphipathic drugs using the energy of ATP hydrolysis. Our studies are directed toward understanding the mechanism of action of Pgp and recent work deals with the assessm...

journal_title：Journal of bioenergetics and biomembranes

authors： Sauna ZE,Smith MM,Müller M,Kerr KM,Ambudkar SV

更新日期：2001-12-01 00:00:00

abstract：:The ATP synthetase of chloroplast membranes binds ADP and ATP with high affinity, and the binding becomes quasi-irreversible under certain conditions. One explanation of the function of these nucleotides is that they are transiently tightly bound during ATP synthesis as part of the catalytic process, and that the rele...

journal_title：Journal of bioenergetics and biomembranes

authors： Tiefert MA,Shavit N

更新日期：1983-10-01 00:00:00

abstract：:Transformation of 3T3 cells by SV40 virus changes the properties of the transplasma membrane electron transport activity which can be assayed by reduction of external ferric salts. After 42 h of culture and before the growth rate is maximum, the transformed cells have a much slower rate of ferric reduction. The change...

journal_title：Journal of bioenergetics and biomembranes

authors： Löw H,Crane FL,Grebing C,Isaksson M,Lindgren A,Sun IL

更新日期：1991-12-01 00:00:00

abstract：:Recent advances in structural biology underlying mechanisms of channel gating have strengthened our knowledge about how K(+) channels can be inter-convertible between conductive and non-conductive states. We have reviewed and combined mutagenesis with biochemical, biophysical and structural information in order to und...

journal_title：Journal of bioenergetics and biomembranes

authors： Raja M,Olrichs NK,Vales E,Schrempf H

更新日期：2012-02-01 00:00:00

abstract：:This study was designed to investigate the energetics of isolated rat hepatocyte swelling due to sodium-cotransported amino acid accumulation in a medium containing either glucose or octanoate as basal substrate. We show that the size of the increase in cytosolic volume is directly correlated with the total amino acid...

journal_title：Journal of bioenergetics and biomembranes

authors： Espié P,Devin A,Guérin B,Rigoulet M

更新日期：1997-12-01 00:00:00

abstract：:Previous in vitro studies indicated that mutation of both K234 and K236 to arginine, glutamine, or glutamic acid impaired the ability of the voltage-dependent anion channel (VDAC1) to insert into the outer membrane of the mitochondria (Smith et al. 1995). These same mutants were expressed in a strain of Saccharomyces ...

journal_title：Journal of bioenergetics and biomembranes

authors： Angeles R,Devine J,Barton K,Smith M,McCauley R

更新日期：1999-04-01 00:00:00

abstract：:Escherichia coli has four [NiFe]-hydrogenases (Hyd); three of these, Hyd-1, Hyd-2 and Hyd-3 have been characterized well. In this study the requirement for the F(0)F(1)-ATP synthase for the activities of the hydrogen-oxidizing hydrogenases Hyd-1 and Hyd-2 was examined. During fermentative growth on glucose at pH 7.5 a...

journal_title：Journal of bioenergetics and biomembranes

authors： Trchounian K,Pinske C,Sawers RG,Trchounian A

更新日期：2011-12-01 00:00:00

abstract：:Recent progress is summarized on the structure, function, and regulation of the tricarboxylate (i.e., citrate) transport protein (CTP) from the rat liver mitochondrial inner membrane. The transporter has been purified and its reconstituted function characterized. A cDNA clone encoding the CTP has been isolated and seq...

journal_title：Journal of bioenergetics and biomembranes

authors： Kaplan RS,Mayor JA

更新日期：1993-10-01 00:00:00

abstract：:Cytoplasmic male sterility arises when mitochondrial activities are disrupted that are essential for pollen development. Rearrangements in the mitochondrial genome that create novel open reading frames are strongly correlated with CMS phenotypes in a number of systems. The morphological aberrations which indicate CMS-...

journal_title：Journal of bioenergetics and biomembranes

authors： Conley CA,Hanson MR

更新日期：1995-08-01 00:00:00

abstract：:The fungal plasma membrane contains a proton-translocating ATPase that is closely related, both structurally and functionally, to the [Na+, K+]-, [H+, K+]-, and [Ca2+]-ATPases of animal cells, the plasma-membrane [H+]-ATPase of higher plants, and several bacterial cation-transporting ATPases. This review summarizes cu...

journal_title：Journal of bioenergetics and biomembranes

authors： Nakamoto RK,Slayman CW

更新日期：1989-10-01 00:00:00

abstract：:In order to determine whether polymorphic forms of the Ca2+ + Mg2+-dependent ATPase exist, we have examined the cross-reactivity of five monoclonal antibodies prepared against the rabbit skeletal muscle sarcoplasmic reticulum enzyme with proteins from microsomal fractions isolated from a variety of muscle and nonmuscl...

journal_title：Journal of bioenergetics and biomembranes

authors： Zubrzycka-Gaarn E,MacDonald G,Phillips L,Jorgensen AO,MacLennan DH

更新日期：1984-12-01 00:00:00

abstract：:Reconstitution experiments were performed on lipid bilayer membranes in the presence of purified mitochondrial porin from yeast and of detergent-solubilized mitochondrial outer membranes of a porin-free yeast mutant. The addition of the porin resulted in a strong increase of the membrane conductance, which was caused ...

journal_title：Journal of bioenergetics and biomembranes

authors： Benz R,Schmid A,Dihanich M

更新日期：1989-08-01 00:00:00