Free cholesterol accumulation impairs antioxidant activities and aggravates apoptotic cell death in menadione-induced oxidative injury.

abstract：:Restriction fragments isolated from a 17-kb rat genomic DNA clone containing the gene for apolipoprotein (apo) E were radiolabeled and used to screen a rat liver cDNA library. A cDNA clone hybridizing to a 6-kb genomic DNA fragment was isolated and the nucleotide sequence of the cDNA insert determined. The sequence wa...

journal_title：Archives of biochemistry and biophysics

authors： Shen P,Howlett GJ

更新日期：1992-09-01 00:00:00

abstract：:The influenza A virus nonstructural protein NS1 is a multifunctional dimeric protein that acts as a potent inhibitor of the host cellular antiviral state. The C-terminal effector domain of NS1 binds host proteins, including CPSF30, and is a target for the development of new antiviral drugs. Here we present crystallogr...

journal_title：Archives of biochemistry and biophysics

authors： Xia S,Robertus JD

更新日期：2010-02-15 00:00:00

abstract：:The effect of hypothyroidism on kinetic characteristics of cytochrome oxidase in rat heart mitochondria was studied. Mitochondrial preparations from control and hypothyroid rats had equivalent Km values for cytochrome c, while the maximal activity of the oxidase was significantly decreased (more than 30%) in mitochond...

journal_title：Archives of biochemistry and biophysics

authors： Paradies G,Ruggiero FM,Dinoi P,Petrosillo G,Quagliariello E

更新日期：1993-11-15 00:00:00

abstract：:A monoclonal antibody specific for cytochrome P-450 1 that extensively (greater than 95%) inhibits the hepatic 21-hydroxylation of progesterone was used in a two-site immunoradiometric assay to estimate the concentration of cytochrome P-450 1 in microsomes prepared from 24 individual, untreated New Zealand White rabbi...

journal_title：Archives of biochemistry and biophysics

authors： Johnson EF,Griffin KJ

更新日期：1985-02-15 00:00:00

abstract：:We have studied the effectiveness of polyprenyl-P-mannose and polyprenol-P-glucose as donor substrates for the dolichyl-P-mannose:Man5(GlcNAc)2-PP-dolichol mannosyltransferase and the dolichyl-P-glucose:Man9(GlcNAc)2-PP-dolichol glucosyltransferase, respectively. The polyprenol moiety differs from dolichol only in the...

journal_title：Archives of biochemistry and biophysics

authors： D'Souza-Schorey C,McLachlan KR,Krag SS,Elbein AD

更新日期：1994-02-01 00:00:00

abstract：:L-ribulokinase is unusual among kinases since it phosphorylates all four 2-ketopentoses with almost the same k(cat) values. The K(m)'s differ, however, being 0.14 mM for L- and 0.39 mM for d-ribulose and 3.4 mM for l- and 16 mM for d-xylulose. In addition, L-arabitol is phosphorylated at C-5 (K(m) 4 mM) and ribitol (a...

journal_title：Archives of biochemistry and biophysics

authors： Lee LV,Gerratana B,Cleland WW

更新日期：2001-12-15 00:00:00

abstract：:1-O-Sinapoylglucose:choline sinapoyltransferase ("sinapine synthase") has been purified from immature seeds of Brassica napus by sequential hydroxylapatite absorption, ion-exchange chromatography, and gel filtration. The purified enzyme has an apparent molecular weight of 65 kDa on gel filtration and a subunit structu...

journal_title：Archives of biochemistry and biophysics

authors： Vogt T,Aebershold R,Ellis B

更新日期：1993-02-01 00:00:00

abstract：:Activities of ketone body-metabolizing enzymes in rat brain rise 3- to 5-fold during the suckling period, then fall more than 50% after weaning. Our purpose was to determine the mechanism of the developmental changes in activity of 3-oxoacid CoA-transferase in rat brain and to study its regulation by dietary modificat...

journal_title：Archives of biochemistry and biophysics

authors： Haney PM,Patel MS

更新日期：1985-07-01 00:00:00

abstract：:Histidinol dehydrogenase (EC 1.1.1.23) activity was determined in several plant species and in cultured plant cell lines. The enzyme was purified from cabbage (Brassica oleracea) to apparent homogeneity. To render complete purification, a new, specific histidinol-Sepharose 4B affinity chromatography was developed. The...

journal_title：Archives of biochemistry and biophysics

authors： Nagai A,Scheidegger A

更新日期：1991-01-01 00:00:00

abstract：:Procedures for the purification of bovine muscle carbonic anhydrase (isoenzyme III) are described. The purified enzyme has a molecular weight near 29,000 and contains one Zn2+ ion per molecule. The sedimentation coefficient, s(0)20,w, is 2.8 X 10(-13) s, the isoelectric pH is 8.5, and A280(0.1%) = 2.07 cm-1. The CO2 h...

journal_title：Archives of biochemistry and biophysics

authors： Engberg P,Millqvist E,Pohl G,Lindskog S

更新日期：1985-09-01 00:00:00

abstract：:The oxidized cytochrome c(2) from the purple phototrophic bacteria, Rhodobacter sphaeroides and Rhodobacter capsulatus, bind the neutral species of imidazole (K(a) = 1440 +/- 40 M(-1)) 50 times more strongly than does horse mitochondrial cytochrome c (K(a) = 30 +/- 1 M(-1)). The kinetics of imidazole binding are consi...

journal_title：Archives of biochemistry and biophysics

authors： Dumortier C,Meyer TE,Cusanovich MA

更新日期：1999-11-15 00:00:00

abstract：:Existing literature describing the stoichiometry and stability of complexes between A23187 and divalent cations in solution has been extended to include additional transition series cations, the heavy-metal cations Cd2+ and Pb2+, plus seven lanthanide series trivalent cations. Stability constants of 1:1 complexes betw...

journal_title：Archives of biochemistry and biophysics

authors： Chapman CJ,Puri AK,Taylor RW,Pfeiffer DR

更新日期：1990-08-15 00:00:00

abstract：:Nickel (Ni) is widely present in the occupational environment and causes various adverse effects on the human body. Apoptosis induced by Ni2+ may be a key mechanism underlying its toxic effect. In the present study, we investigated the effect of Ni-smelting fumes on cell viability, mitochondrial damage, and apoptosis-...

journal_title：Archives of biochemistry and biophysics

authors： Pan YL,Xin R,Wang SY,Wang Y,Zhang L,Yu CP,Wu YH

更新日期：2018-12-15 00:00:00

abstract：:In an effort to better understand the Ah receptor nuclear translocator (Arnt)-dependent signaling mechanisms, we employed a phage display system to identify Arnt-interacting peptides. Human liver cDNA library was utilized to screen for Arnt-interacting peptides using an Arnt construct fused to thioredoxin (TH-ArntCDel...

journal_title：Archives of biochemistry and biophysics

authors： Li Y,Luu TC,Chan Wk

更新日期：2005-09-01 00:00:00

abstract：:The stability of glutathione peroxidase was assessed in vitro via oxidative inactivation by peroxides and a peroxidizing fatty acid and by renaturation and proteolysis. The stability of glutathione peroxidase to methyl ethyl ketone peroxide, H2O2, linoleic acid hydroperoxide, and peroxidizing methyl linolenate was com...

journal_title：Archives of biochemistry and biophysics

authors： Condell RA,Tappel AL

更新日期：1983-06-01 00:00:00

abstract：:The regulation of expression of hepatic iron-related proteins was examined during iron deficiency caused by scurvy in guinea pigs. Previous studies showed that some effects of scurvy, such as suppression of collagen gene expression, result from events associated with weight loss. During the initial phase of scurvy whe...

journal_title：Archives of biochemistry and biophysics

authors： Gosiewska A,Mahmoodian F,Peterkofsky B

更新日期：1996-01-15 00:00:00

abstract：:Glaucoma is the leading cause of irreversible blindness in the world and trabeculectomy remains still the most commonly performed filtration surgery. Failure of trabeculectomy is due to the formation of scarring, which is associated with the increased fibroblast proliferation, activation, and collagen deposition at th...

journal_title：Archives of biochemistry and biophysics

authors： Wang L,Guo D,Wang Z,Yin X,Wei H,Hu W,Chen R,Chen C

更新日期：2020-04-15 00:00:00

abstract：:Phospholipid transmethylation in the microsomal fraction of stimulated and unstimulated human leukocytes was measured in a recently developed assay system. Microsomal fraction was prepared from neutrophils, unseparated lymphocytes, T lymphocytes, and non-T lymphocytes by sonication and subsequent ultracentrifugation. ...

journal_title：Archives of biochemistry and biophysics

authors： Niwa Y,Sakane T,Taniguchi S

更新日期：1984-10-01 00:00:00

abstract：:Previous studies in which dicyclohexylcarbodiimide (DCCD) was used to inactivate F1-ATPase enzymes have suggested that two glutamate residues in the beta-subunit are essential for catalysis. In the Escherichia coli F1-ATPase, these are residues beta-Glu-181 and beta-Glu-192. Oligonucleotide-directed mutagenesis was us...

journal_title：Archives of biochemistry and biophysics

authors： Parsonage D,Wilke-Mounts S,Senior AE

更新日期：1988-02-15 00:00:00

abstract：:Dihydropyrazine compounds, including 3-hydro-2,2,5,6-tetramethylpyrazine (DHP-3), are low-molecular-weight glycation products spontaneously generated in vivo and also ingested via food. Our preliminary study using microarray analysis demonstrated that DHP-3 induced zinc transporter-1 (ZnT-1) in HepG2 cells. It is well...

journal_title：Archives of biochemistry and biophysics

authors： Ishida T,Yamaguchi T,Takechi S

更新日期：2015-08-15 00:00:00

abstract：:Two peptides are specified when the noncoding DNA strand is read in the 5' to 3', or the 3' to 5' direction, and both peptides form strong complexes with the natural peptide, as found by J. E. Blalock and K. L. Bost with ACTH [1986) Biochem. J. 234, 679-683). We report here that strong hydropathic complementarity (pai...

journal_title：Archives of biochemistry and biophysics

authors： Markus G,Tritsch GL,Parthasarathy R

更新日期：1989-08-01 00:00:00

abstract：:Human seminal fluid was recently found to contain 18,19-dehydroprostaglandins E1 and E2 (E. H. Oliw, H. Sprecher, and M. Hamberg, (1986) J. Biol. Chem. 261, 2675-2683). In the present study, the cis and trans isomers of 18,19-dehydroprostaglandins E1 and E2 were prepared by incubation of microsomes of ram vesicular gl...

journal_title：Archives of biochemistry and biophysics

authors： Oliw EH,Benthin G,Hamberg M

更新日期：1987-10-01 00:00:00

abstract：:Constitutive androstane receptor (CAR) transactivation is enhanced by p160 coactivators, which include three members, SRC-1, SRC-2, and SRC-3. Each of the p160 coactivators enhanced mouse CAR (mCAR) transactivation of the CYP2B1 phenobarbital (PB)-responsive enhancer in transfected cultured cells and mouse hepatocytes...

journal_title：Archives of biochemistry and biophysics

authors： Xia J,Liao L,Sarkar J,Matsumoto K,Reddy JK,Xu J,Kemper B

更新日期：2007-12-01 00:00:00

abstract：:In vitro phosphorylation of purified spectrin dimer was studied in the presence of Ca2+-calmodulin (CaM). CaM inhibited autophosphorylation of the beta subunit of spectrin. The inhibitory effect (65% at a 32-fold molar excess) appeared to be due to a weak interaction of CaM with spectrin. CaM was similarly effective i...

journal_title：Archives of biochemistry and biophysics

authors： Maretzki D,Lutz HU

更新日期：1986-04-01 00:00:00

abstract：:In the presence of rat liver cytosol and homocysteine, trimethylselenonium ion (TMSe+) underwent time-dependent demethylation to dimethylselenide with the concurrent formation of methionine. Convenient methods were developed for assay of this activity using either radioactive methods based on the gamma emitting isotop...

journal_title：Archives of biochemistry and biophysics

authors： Goeger DE,Ganther HE

更新日期：1993-04-01 00:00:00

abstract：:The manganese-containing (MnSOD) and iron-containing (FeSOD) superoxide dismutases from Escherichia coli are extensively (greater than 95%) inactivated by treatment with phenylglyoxal. The relatively high concentrations of phenylglyoxal and high pH required for optimal inactivation suggest that inactivation may be due...

journal_title：Archives of biochemistry and biophysics

authors： Borders CL Jr,Horton PJ,Beyer WF Jr

更新日期：1989-01-01 00:00:00

abstract：:Glycogen synthase was isolated from rat H4IIE hepatoma cells by the use of specific antibodies. Immunoprecipitates from cells grown in the presence of [35S]methionine contained two 35S-labeled polypeptides, designated GS1 and GS2, separable by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Labeling of both...

journal_title：Archives of biochemistry and biophysics

authors： Armstrong DJ,Roach PJ

更新日期：1989-11-15 00:00:00

abstract：:Evidence indicates that activation of a beta 1----3N-acetylglucosaminyltransferase is responsible for accumulation of large quantities of lacto-series tumor-associated antigens in human colonic adenocarcinomas. Expression of type 1 and 2 core chain derivatives characterize human colonic adenocarcinomas, whereas normal...

journal_title：Archives of biochemistry and biophysics

authors： Holmes EH

更新日期：1989-05-01 00:00:00

abstract：:Five functional isoforms of a novel plant thiol methyltransferase from the leaves of cabbage (Brassica oleracea L.) were purified to electrophoretic homogeneity. Pooled, partly purified preparations of the enzyme were previously shown to methylate thiol compounds released upon the hydrolysis of glucosinolates. The enz...

journal_title：Archives of biochemistry and biophysics

authors： Attieh J,Sparace SA,Saini HS

更新日期：2000-08-15 00:00:00

abstract：:Butyric acid produces multiple effects on mammalian cells in culture, including alterations in morphology, depression of growth rate, increased histone acetylation, and modified production of various proteins and enzymes. The latter effect is exemplified by the induction in HeLa cells of the glycoprotein hormone alpha...

journal_title：Archives of biochemistry and biophysics

authors： McClure DS,Cox GS

更新日期：1984-08-15 00:00:00