Abstract：
:All six available lysine residues in bacteriorhodopsin were amidinated with dimethyl-3,3'-dithiobispropionimidate, which is a crosslinking agent. The photocycle was studied by measuring light absorption and electric signals. The data show an essential change in the photocycle: instead of single components, the rise of the signal due to the M intermediate can be decomposed into two components, and the decay into three. The life-times and the intensities of these components and in general the proton pumping activity of bacteriorhodopsin depend only negligibly upon pH. Changes upon removing the crosslinks are not significantly different from those in the crosslinked samples. The lysine residues therefore may not be considered of primary importance in proton translocation.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Tóth-Boconádi R,Taneva SG,Kiselev AV,Abdulaev NG,Keszthelyi Ldoi
10.1016/0003-9861(88)90502-4subject
Has Abstractpub_date
1988-02-01 00:00:00pages
725-31issue
2eissn
0003-9861issn
1096-0384pii
0003-9861(88)90502-4journal_volume
260pub_type
杂志文章abstract：:An endogenous inhibitor of neutral Ca2+-dependent proteinases has been isolated from rabbit liver cytosol. The inhibitor is a heat-stable, 240-kDa, tetrameric protein. It is dissociated into its 60-kDa subunits by high concentrations of Ca2+ (0.1-1 mM), but not by lower concentrations in the physiological range. Inhib...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(84)90568-x
更新日期：1984-08-01 00:00:00
abstract：:Using fractionation procedures such as sucrose gradient sedimentation and gel permeation chromatography, a novel cytosolic binding protein for benzo[a]pyrene has been detected in liver of nonmammalian and mammalian species including human. This protein, called 8 S protein, cosediments with the Ah receptor after centri...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1993.1262
更新日期：1993-05-15 00:00:00
abstract：:The inborn deficiency of adenosine deaminase is characterised by accumulation of excess amounts of cytotoxic deoxyadenine nucleotides in lymphocytes. Formation of dATP requires phosphorylation of deoxyadenosine by deoxycytidine kinase (dCK), the main nucleoside salvage enzyme in lymphoid cells. Activation of dCK by a ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2005.01.009
更新日期：2005-04-01 00:00:00
abstract：:Human malic enzyme was studied by steady state kinetics, deuterium isotope effects, and 13C isotope effects with both the physiological dinucleotide cofactor and several alternate cofactors. The log V vs pH profile with NAD revealed two pK(a) values too close to be separately determined, but with an average value of 7...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.2001.2598
更新日期：2001-12-01 00:00:00
abstract：:This paper describes the effect of an ionic (sodium dodecyl sulfate; SDS) and a nonionic detergent (Triton X-100) on the substrate and enzyme components of the lecithin: cholesterol acyltransferase (LCAT) reaction. When the enzyme sources (purified or partially purified) or the respective substrates [high-density lipo...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(84)90628-3
更新日期：1984-08-15 00:00:00
abstract：:In bovine retinal pigment epithelium membranes we have found three hydrolases which were active against trans-retinyl palmitate. This was possible by assaying different subcellular fractions as a function of pH in the range 3-9. Detection of these activities has been favored by the use in the enzyme assay of Triton X-...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(91)90238-e
更新日期：1991-08-01 00:00:00
abstract：:Asthma is characterized by a predominant T(H)2 type immune response to airborne allergens. Controlling T(H)2 cell function has been proposed as therapy for this disease. We show here that ligands for the nuclear receptor peroxisome proliferator activated receptor (PPAR)gamma significantly reduced the immunological sym...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2003.08.006
更新日期：2003-10-15 00:00:00
abstract：:The stoichiometry of complex formation between two lysosomal proteinases from rabbit liver, cathepsin M and fructose 1,6-bisphosphatase converting enzyme (CE), and their respective endogenous inhibitors was studied by the equilibrium gel penetration method. In each case the molecular weight of the complex was found to...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(84)90011-0
更新日期：1984-02-01 00:00:00
abstract：:While prior studies focusing on male mice suggest a role for sterol carrier protein-2/sterol carrier protein-x (SCP-2/SCP-x; DKO) on hepatic phytol metabolism, its role in females is unresolved. This issue was addressed using female and male wild-type (WT) and DKO mice fed a phytoestrogen-free diet without or with 0.5...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2017.10.011
更新日期：2017-12-01 00:00:00
abstract：:Protein tyrosine kinase Yes is a cellular homolog of v-Yes, the oncogenic protein product of avian sarcoma virus Y73. Yes is a member of the Src family and its activation has been associated with several types of human cancer. Human Yes has not been previously characterized enzymatically. To carry out biochemical char...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1997.0236
更新日期：1997-09-01 00:00:00
abstract：:We measured temporal oscillations of intracellular K+ concentration in yeast cells exhibiting glycolytic oscillations using fluorescence spectroscopy and microscopy methods. These oscillations showed the same period as those of glycolytic metabolites (NADH, ATP), indicating a strong coupling between them. We experimen...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2020.108257
更新日期：2020-03-15 00:00:00
abstract：:Insulin has pleiotropic effects on sensitive cells, including the regulation of specific mRNA accumulation initiated by the binding of insulin to its plasma membrane receptor. Lectins, such as wheat germ agglutinin (WGA) and concanavalin A (Con A), are known to be insulin mimetic. It is thought that WGA and Con A inte...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(87)90086-5
更新日期：1987-04-01 00:00:00
abstract：:CYP27A1, an enzyme with several important roles in cholesterol homeostasis and vitamin D₃ metabolism, has been ascribed anti-atherogenic properties. This study addresses an important problem regarding how this enzyme, involved in cholesterol metabolism in the liver and peripheral tissues, is regulated. Our results ide...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2010.11.023
更新日期：2011-02-15 00:00:00
abstract：:The role of cytochrome c and catalase in hydroperoxide-induced lipid peroxidation of rat heart mitochondria was investigated. Mitoplasts were prepared from hearts of aminotriazole-treated rats which displayed both an 80-90% reduction in matrix catalase activity and rate of H2O2 consumption. Catalase-depleted mitochond...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1993.1055
更新日期：1993-01-01 00:00:00
abstract：:Isolated adrenocortical carcinoma cells of rat contain alpha 2- and beta-adrenergic receptors. When these cells are incubated with alpha 2-adrenergic agonists, there is a concentration-dependent increase of cyclic GMP that is blocked by the alpha 2-adrenergic antagonist yohimbine but not by the beta-antagonist propran...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(86)90041-x
更新日期：1986-09-01 00:00:00
abstract：:The relationship between erythroid delta-aminolevulinate (ALA) synthase and hepatic ALA synthase in rat was analyzed immunochemically, using antibodies directed against rat liver ALA synthase and against chicken liver ALA synthase. Rat erythroid ALA synthase showed no cross-reactivity with anti-liver ALA synthase anti...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(86)90191-8
更新日期：1986-02-15 00:00:00
abstract：:The topological arrangement of cytochrome b561 in the bovine adrenal medullary chromaffin granule membrane was investigated by radiolabeling and immunoprecipitation techniques using antibody raised against the purified cytochrome. The first labeling procedure involved a membrane-permeable amino group labeling reagent,...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(84)90074-2
更新日期：1984-01-01 00:00:00
abstract：:Mitochondrial carbonic anhydrase has previously been quantitated in liver mitochondria; it was not detected in guinea pig kidney cortical mitochondria. Evidence of this enzyme in rat kidney cortical mitochondria is reported. Electron microscopy showed that intact mitochondria were free of other intracellular organelle...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(88)90457-2
更新日期：1988-01-01 00:00:00
abstract：:Antioxidant defenses include a group of ubiquitous, non-heme peroxidases, designated the peroxiredoxins, which rely on an activated cysteine residue at their active site to catalyze the reduction of hydrogen peroxide, organic hydroperoxides, and peroxynitrite. In the typical 2-Cys peroxiredoxins, a second cysteinyl re...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章,评审
doi：10.1016/j.abb.2004.09.006
更新日期：2005-01-01 00:00:00
abstract：:The purpose of the current study is to present further evidence for prothrombin self-association as assessed by chemical crosslinking. When the self-association (evaluated by covalent crosslinking with dithiobis(succinimidylpropionate) of prothrombin or fragment 1 was evaluated at the same molar concentration of prote...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(87)90588-1
更新日期：1987-09-01 00:00:00
abstract：:Here we investigated whether cADPR and NAADP are synthesized in mitochondria. We found that ADPR-cyclase activity is present in mitochondria. In addition, we describe for the first time synthesis of NAADP in this intracellular organelle. ADPR-cyclase activities (V(MAX)) and NAADP synthesis in mitochondria were about 4...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1999.1463
更新日期：1999-11-15 00:00:00
abstract：:Bacterial multicomponent monooxygenases (BMMs) are members of a wide family of diiron enzymes that use molecular oxygen to hydroxylate a variety of aromatic compounds. The presence of genes encoding for accessory proteins not involved in catalysis and whose role is still elusive, is a common feature of the gene cluste...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2010.09.023
更新日期：2011-01-01 00:00:00
abstract：:The secretion of newly synthesized apolipoprotein E (apo E) by human monocyte-derived macrophages (HMD macrophages) was measured in the medium of cells which had been incubated for 24 h with or without either native or acetylated low-density lipoproteins (LDL or AcLDL, respectively), and subsequently with [35S]methion...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(85)90704-0
更新日期：1985-06-01 00:00:00
abstract：:A58 is a murine monoclonal antibody raised against the internal dimeric subunit A alpha 1 of the hemocyanin of the scorpion Androctonus australis. When A58 is tested against a range of related hemocyanins, it exhibits cross-reactivity with a limited number of scorpion species. All of them belong to a single Scorpion F...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1995.1185
更新日期：1995-03-10 00:00:00
abstract：:FtsZ (Filamentous temperature sensitivity Z) cell division protein from Escherichia coli binds the fluorescence probe DAPI. Bundling of FtsZ was facilitated in the presence of DAPI, and the polymers in solution remained polymerized longer time than the protofilaments formed in the absence of DAPI. DAPI decreased both ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2007.06.032
更新日期：2007-09-15 00:00:00
abstract：:The conditions for accurately determining distance constraints from TrNOESY data on a small ligand (3'CMP) bound to a small protein (RNase A, <14 kDa) are described. For small proteins, normal TrNOESY conditions of 10:1 ligand:protein or greater can lead to inaccurate structures for the ligand-bound conformation due t...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2007.02.034
更新日期：2007-07-01 00:00:00
abstract：:The cellular factor, papillomavirus (PV)-binding factor (PBF)/Huntington's disease binding protein 2 (HDBP2), was identified by its ability to bind regulatory sequences of certain papillomavirus types as well as the Huntington's disease gene. PBF is thought to be a novel nuclear-shuttling transcription factor with unk...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2007.04.017
更新日期：2007-08-01 00:00:00
abstract：:Glycosylphosphatidylinositol transamidase (GPI-T) catalyzes the post-translational addition of the GPI anchor to the C-terminus of some proteins. In most eukaryotes, Gpi8, the active site subunit of GPI-T, is part of a hetero-pentameric complex containing Gpi16, Gaa1, Gpi17, and Gab1. Gpi8, Gaa1, and Gpi16 co-purify a...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2017.09.006
更新日期：2017-11-01 00:00:00
abstract：:Chronic ethanol intoxication leads to the development of a resistance to lipid disordering by ethanol, a phenomenon known as "membrane tolerance". In the absence of the added ethanol, the lipid order, as measured by ESR and fluorescence techniques, does not necessarily change as a result of chronic ethanol ingestion (...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(88)90407-9
更新日期：1988-05-01 00:00:00
abstract：:Serratia marcescens metalloprotease inhibitor (SmaPI) is a proteinase inhibitor toward Serratia marcescens metalloprotease (SMP). In sequential deletion analysis of the N-terminal region of the SmaPI, SmaPIs starting at Ser-2 and Leu-3 residues, respectively, had nearly a full inhibitory activity toward SMP. However, ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1997.0561
更新日期：1998-04-01 00:00:00
