Abstract:
:Mitochondrial cytochrome c (horse), which is a very efficient electron donor to bacterial photosynthetic reaction centers in vitro, binds to the reaction center of Rhodospirillum rubrum with an approximate dissociation constant of 0.3-0.5 microM at pH 8.2 and low ionic strength. The binding site for the reaction center is on the frontside of cytochrome c which is the side with the exposed heme edge, as revealed by differential chemical acetylation of lysines of free and reaction-center-bound cytochrome c. In contrast, bacterial cytochrome c2 was found previously to bind to the detergent-solubilized reaction center through its backside, i.e., the side opposite to the heme cleft [Rieder, R., Wiemken, V., Bachofen, R., and Bosshard, H. R. (1985). Biochem. Biophys. Res. Commun. 128, 120-126]. Binding of mitochondrial cytochrome c but not of mitochondrial cytochrome c2 is strongly inhibited by low concentrations of poly-L-lysine. The results are difficult to reconcile with the existence of an electron transfer site on the backside of cytochrome c2.
journal_name
J Bioenerg Biomembrjournal_title
Journal of bioenergetics and biomembranesauthors
Bosshard HR,Snozzi M,Bachofen Rdoi
10.1007/BF00768540subject
Has Abstractpub_date
1987-08-01 00:00:00pages
375-82issue
4eissn
0145-479Xissn
1573-6881journal_volume
19pub_type
杂志文章abstract::Hepatic iron toxicity because of iron overload seems to be mediated by lipid peroxidation of biological membranes and the associated organelle dysfunctions. However, the basic mechanisms underlying this process in vivo are still little understood. Gerbils were dosed with weekly injections of iron-dextran alone or in c...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1023/a:1005512014280
更新日期:2000-04-01 00:00:00
abstract::The advantages of using bacterial systems to study the mechanism and function of cytochrome bc (1) complexes do not extend readily to their structural investigations. High quality crystals of bacterial complexes have been difficult to obtain despite the enzymes' smaller sizes and simpler subunit compositions compared ...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-008-9180-8
更新日期:2008-10-01 00:00:00
abstract::Hundreds of proteins in the nervous system are modified by the monosaccharide O-GlcNAc. A single protein is often O-GlcNAcylated on several amino acids and the modification of a single site can play a crucial role for the function of the protein. Despite its complexity, only two enzymes add and remove O-GlcNAc from pr...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1007/s10863-018-9760-1
更新日期:2018-06-01 00:00:00
abstract::The molecular mechanism by which the membrane-embedded FO sector of the mitochondrial ATP synthase translocates protons, thus dissipating the transmembrane protonmotive force and leading to ATP synthesis, involves the neutralization of the carboxylate residues of the c-ring. Carboxylates are thought to constitute the ...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-013-9504-1
更新日期:2013-06-01 00:00:00
abstract::Yeasts capable of growing and surviving at high temperatures are regarded as thermotolerant. For appropriate functioning of cellular processes and cell survival, the maintenance of an optimal redox state is critical of reducing and oxidizing species. We studied mitochondrial functions of the thermotolerant Kluyveromyc...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-017-9696-x
更新日期:2017-04-01 00:00:00
abstract::Porin or voltage-dependent anion-selective channel (VDAC) is the main protein responsible for the high permeability of the outer mitochondrial membrane. The mitochondrial porin is mainly composed of sided beta-strands, in analogy with bacterial porin, whose structure has been resolved at 1.8 A resolution. In mitochond...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1007/BF00769526
更新日期:1992-02-01 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
pub_type: 杂志文章,评审
doi:10.1007/BF00762689
更新日期:1989-12-01 00:00:00
abstract::The protons excreted by plant cells may arise by two different mechanisms: (1) by the action of the plasma membrane H(+)-ATPase and (2) by plasma membrane redox reactions. The exact proportion from each source is not known, but the plasma membrane H(+)-ATPase is, by far, the major contributor to proton efflux. There i...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1007/BF00771014
更新日期:1991-06-01 00:00:00
abstract::As the terminal component of the mitochondrial respiratory chain, cytochrome c oxidase plays a vital role in cellular energy transformation. Human cytochrome c oxidase is composed of 13 subunits. The three major subunits form the catalytic core and are encoded by mitochondrial DNA (mtDNA). The remaining subunits are n...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1023/a:1022638013825
更新日期:1997-04-01 00:00:00
abstract::Idebenone (IDE), a synthetic analog of coenzyme Q, strongly activates glycerol phosphate (GP) oxidation in brown adipose tissue mitochondria. GP oxidase, GP cytochrome c oxidoreductase and GP dehydrogenase activities were all significantly stimulated by 13 muM IDE. Substituted derivatives of IDE acetyl- and methoxyide...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-008-9134-1
更新日期:2008-04-01 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
pub_type: 杂志文章
doi:10.1023/a:1020252401675
更新日期:2002-08-01 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
pub_type: 杂志文章,评审
doi:10.1007/s10863-012-9407-6
更新日期:2012-02-01 00:00:00
abstract::The topic of human adult neural plasticity and neurogenesis is of great interest for medical and scientific community, but it is also largely debated. In the last years, an increasing interest has been paid to the olfactory system, and particularly to the plasticity of the olfactory bulb (OB). While the molecular/cell...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1007/s10863-018-9780-x
更新日期:2019-02-01 00:00:00
abstract::NYGGF4 (also called PID1) is a recently discovered gene that is involved in obesity-related insulin resistance (IR). We aimed in the present study to further elucidate the effects of NYGGF4 on IR and the underlying mechanisms through using metformin treatment in 3T3-L1 adipocytes. Our data showed that the metformin pr...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-012-9472-x
更新日期:2012-12-01 00:00:00
abstract::Arsenic trioxide is an effective treatment for acute promyelocytic leukemia, but resistance to metalloid salts is found in humans. Using atomic absorption spectroscopy, we have measured the rate of uptake of arsenic trioxide and of antimony tartrate in GLC4 and GLC4/ADR cells overexpressing MRP1 and the rate of their ...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1023/a:1015180026665
更新日期:2002-04-01 00:00:00
abstract::The importance of crucial nutrient factors like Phosphate (P) and their limited availability leads to variable fluctuations in fatty acid and phospholipid synthesis in the green alga. These fatty acids and phospholipids are an imperative byproduct of alga which used in biofuel production. The production of phospholipi...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-019-09813-8
更新日期:2020-02-01 00:00:00
abstract::Overexpression of the Homo sapiens LYR motif containing 1 (LYRM1) causes mitochondrial dysfunction and induces insulin resistance in 3T3-L1 adipocytes. α-Lipoic acid (α-LA), a dithiol compound with antioxidant properties, improves glucose transport and utilization in 3T3-L1 adipocytes. The aim of this study was to inv...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-012-9460-1
更新日期:2012-10-01 00:00:00
abstract::The serotonergic system plays a crucial role in the energy balance regulation. Energy balance is mediated by food intake and caloric expenditure. Thus, the present study investigated the mechanisms that might be associated with fluoxetine treatment-induced weight reduction. Wistar male rat pups received daily injectio...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-015-9617-9
更新日期:2015-08-01 00:00:00
abstract::The past 5 years has witnessed an advance in our understanding of alpha1G (Cav3.1), alpha1H (Cav3.2), and alpha11 (Car3.3), the pore-forming subunits of T-type or low-voltage-activated calcium channels (LVAs). LVAs differ in their localization and molecular, biophysical, and biochemical properties, but all conduct a t...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1023/b:jobb.0000008024.77488.48
更新日期:2003-12-01 00:00:00
abstract::In the present study we have observed a higher state of coupling in respiring mitochondria isolated from green as compared to red tomatoes (Lycopersicon esculentum, Mill.). Green tomato mitochondria produced a membrane potential (deltapsi) high enough to phosphorylate ADP, whereas in red tomato mitochondria, BSA and A...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1023/a:1005408809619
更新日期:1999-10-01 00:00:00
abstract::The purification of the channel-forming component of the mitochondrial calcium uniporter and its channel properties are described. After ethanol and 50% ethanol-water extraction of mitochondria from beef heart or perfused rat liver, the extract was passed through thiopropyl-Sepharose 6B column, and absorbed components...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/BF00763072
更新日期:1994-04-01 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
pub_type: 杂志文章
doi:10.1023/a:1020594214379
更新日期:1998-10-01 00:00:00
abstract::Dysfunction of neuronal metabolism is central to all forms of seizure activity. Clinical, genetic and metabolic studies have implicated mitochondria in the process. Alterations in electron transport, generation of reactive oxygen species, calcium metabolism and apoptosis all have been described in human and animal ner...
journal_title:Journal of bioenergetics and biomembranes
pub_type:
doi:10.1007/s10863-010-9322-7
更新日期:2010-12-01 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
pub_type: 杂志文章
doi:10.1007/s10863-018-9777-5
更新日期:2018-12-01 00:00:00
abstract::For the past seven years or so, much discussion and controversy in the field of human evolution has revolved around the application and interpretation of studies of human mitochondrial DNA variation, particularly the hypothesis that all mtDNA types in contemporary populations can be traced back to a single African anc...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1007/BF00763097
更新日期:1994-06-01 00:00:00
abstract::The effect of triphenyltin on mitochondrial Ca2+ content was studied. It was found that this trialkyltin compound induces an increase in membrane permeability that leads to Ca2+ release, drop of the transmembrane potential, and efflux of matrix proteins. Interestingly, cyclosporin A was unable to inhibit triphenyltin-...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/BF00762786
更新日期:1994-08-01 00:00:00
abstract::The soxL gene from Sulfolobus acidocaldarius (DSM 639) encodes a Rieske iron-sulfur protein. In this study we report the identification of two open reading frames in its downstream region. The first one, named soxN, codes for a membrane protein bearing a resemblance to the b-type cytochromes of the cytochrome bc1 and ...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1023/a:1023742002493
更新日期:2003-04-01 00:00:00
abstract::Electron microscopy (EM) in combination with image analysis is a powerful technique to study protein structure at low- and high resolution. Since electron micrographs of biological objects are very noisy, substantial improvement of image quality can be obtained by averaging individual projections. Crystallographic and...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章,评审
doi:10.1007/BF00763217
更新日期:1994-02-01 00:00:00
abstract::We report on the influence of dielectric pulse injection on the energy metabolism of yeast cells with a planar interdigitated electrode interface. The energy metabolism was measured via NADH fluorescence. The application of dielectric pulses results in a distinct decrease of the fluorescence, indicating a response of ...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-006-9014-5
更新日期:2006-04-01 00:00:00
abstract::To discover the effect of tumor necrosis factor-alpha-induced protein 8-like 2 (TIPE2) on the oral tongue squamous cell carcinoma (OTSCC) via affecting FoxP3+ regulatory T (Treg) cells. Immunohistochemistry was conducted to examine TIPE2 and FoxP3 expressions in OTSCC tumor tissues and corresponding oral mucosa. Tca81...
journal_title:Journal of bioenergetics and biomembranes
pub_type: 杂志文章
doi:10.1007/s10863-020-09840-w
更新日期:2020-08-01 00:00:00