Group IB phospholipase A2 from Pseudonaja textilis.

abstract：:The enzyme ketol acid reductoisomerase catalyzes the second common reaction in the biosynthesis of the branched chain amino acids. The reaction is complex as an alkyl migration and a ketone reduction apparently occur as separate steps during the conversion of acetolactate to 2,3-dihydroxy-3-methylbutyrate. This paper ...

journal_title：Archives of biochemistry and biophysics

authors： Mrachko GT,Chunduru SK,Calvo KC

更新日期：1992-05-01 00:00:00

abstract：:The role of H211 of the yeast F1-ATPase beta-subunit was investigated by site-specific mutagenesis and characterization of the resulting enzymes. Five amino acids (N, D, I, K, and A) were substituted for H211 of the ATP2 gene. The mutated genes were expressed in an atp2::LEU2 host, and only yeast expressing H211N resp...

journal_title：Archives of biochemistry and biophysics

authors： Schnizer RA,Schuster SM

更新日期：1996-02-01 00:00:00

abstract：:Paxilline, an indole alkaloid mycotoxin from Penicillium paxilli, is an inhibitor of the sarco/endoplasmic reticulum Ca2+ ATPase (SERCA). Paxilline inhibited differing isoforms of SERCA with IC50s between 5 and 50 microM. It inhibited more potently the purified Ca2+ ATPase activity from skeletal muscle with an IC50 of...

journal_title：Archives of biochemistry and biophysics

authors： Bilmen JG,Wootton LL,Michelangeli F

更新日期：2002-10-01 00:00:00

abstract：BACKGROUND:The main functions of the skin are to protect against environmental insults and prevent water loss, which are performed by the complex lipid- and protein matrix present in the outermost layers of the epithelium. The lipidome of these outer layers is mainly composed of ceramides, fatty acids, and cholesterol,...

journal_title：Archives of biochemistry and biophysics

authors： Muresan XM,Narzt MS,Woodby B,Ferrara F,Gruber F,Valacchi G

更新日期：2019-05-15 00:00:00

abstract：:Triacylglycerol plays a critical role in an organism's ability to withstand fuel deprivation, and dysregulation of triacylglycerol synthesis is important in the development of diseases such as obesity and diabetes. Glycerol-3-phosphate acyltransferase (GPAT) catalyzes the initial and committed step of glycerolipid syn...

journal_title：Archives of biochemistry and biophysics

authors： Lewin TM,Granger DA,Kim JH,Coleman RA

更新日期：2001-12-01 00:00:00

abstract：:Rat liver microsomal glutathione transferase displays glutathione peroxidase activity with linoleic acid hydroperoxide, linoleic acid ethyl ester hydroperoxide, and dilinoleoyl phosphatidylcholine hydroperoxide, with rates of 0.2, 0.3, and 0.3 mumol/min/mg, respectively. The activities are increased between three- and...

journal_title：Archives of biochemistry and biophysics

authors： Mosialou E,Morgenstern R

更新日期：1989-11-15 00:00:00

abstract：:Myeloperoxidase (MPO) is expressed by myeloid cells for the purpose of catalyzing the formation of hypochlorous acid, from chloride ions and reaction with a hydrogen peroxide-charged heme covalently bound to the enzyme. Most peroxidase enzymes both plant and mammalian are inhibited by benzoic acid hydrazide (BAH)-cont...

journal_title：Archives of biochemistry and biophysics

authors： Huang J,Smith F,Panizzi JR,Goodwin DC,Panizzi P

更新日期：2015-03-15 00:00:00

abstract：:Cellobiose dehydrogenase (CDH), an extracellular hemoflavoenzyme produced by the cellulose-degrading cultures of Phanerochaete chrysosporium, oxidizes cellobiose to cellobionolactone. CDH has been purified to homogeneity by a five-step purification procedure. The homogeneous CDH is monomeric and has a relative molecul...

journal_title：Archives of biochemistry and biophysics

authors： Bao W,Usha SN,Renganathan V

更新日期：1993-02-01 00:00:00

abstract：:Previously, we established a method to detect subunit interactions of F1-ATPase by the yeast two-hybrid system (Moritani, C., et al. Biochim. Biophys. Acta 1274, 67-72, 1996). Here, we isolated mutants of the gamma subunits defective in interaction with the epsilon subunit by this new procedure to study the molecular ...

journal_title：Archives of biochemistry and biophysics

authors： Sawada K,Watanabe H,Moritani-Otsuka C,Kanazawa H

更新日期：1997-12-01 00:00:00

abstract：:An anti-avidin mAb, viz., H12G4, is shown to release bound biotin in a dose-dependent manner from holoavidin and holostreptavidin and inhibit the binding of ligand to the two apoproteins. The release of biotin by this mAb is accompanied by quenching of ligand-induced enhanced fluorescence of the FITC-avidin conjugate....

journal_title：Archives of biochemistry and biophysics

authors： Subramanian N,Subramanian S,Karande AA,Adiga PR

更新日期：1997-08-15 00:00:00

abstract：:Xenopus laevis nucleoplasmin is a pentameric nuclear chaperone. The relation between the structure and the multifunctional aspects of the molecule has not yet been clearly established. In the course of analysing a C-terminally His-tagged recombinant version of the region equivalent to the trypsin resistant core (r-NP1...

journal_title：Archives of biochemistry and biophysics

authors： Arnan C,Prieto C,Chiva M,Salvany L,Ausió J,Subirana JA,Saperas N

更新日期：2005-05-15 00:00:00

abstract：:5-Epi-aristolochene synthase is a sesquiterpene cyclase activity found in pathogen-challenged tobacco cells, but not in nonchallenged tissues, and appears to be encoded by a complex gene family. As a prerequisite to assessing the functional significance of these multiple genes, bacterial expression systems were examin...

journal_title：Archives of biochemistry and biophysics

authors： Back K,Yin S,Chappell J

更新日期：1994-12-01 00:00:00

abstract：:In this investigation we report the presence of two forms of inositol (1,4,5)P3/(1,3,4,5)P4-polyphosphate 5-phosphatase activity (types I and II) which were observed in soluble extracts of skeletal muscle after fractionation by DEAE-Sephacel chromatography. Hydrolysis of D-myo-inositol 1,4,5-trisphosphate (Ins(1,4,5)P...

journal_title：Archives of biochemistry and biophysics

authors： Hansbro PM,Foster PS,Hogan SP,Ozaki S,Denborough MA

更新日期：1994-05-15 00:00:00

abstract：:Spontaneously beating isolated rat atria were subjected to 1 h of anoxia at 37 degrees C in various cardioplegic solutions. Contraction continued for different times upon initiation of anoxia, depending on the nature of the cardioplegic solution. Two hundred micromolar P1,P5-di(adenosine-5')pentaphosphate (Ap5A) stopp...

journal_title：Archives of biochemistry and biophysics

authors： Savabi F,Bessman SP

更新日期：1986-07-01 00:00:00

abstract：:The protein sequence encoded by a creatine transporter cDNA cloned from a human heart library was identical to that cloned from a human kidney library (Nash et al., Receptors Channels 2, 165-174, 1994), except that at position 285 the former contained an Ala residue and the latter contained a Pro residue. Expression o...

journal_title：Archives of biochemistry and biophysics

authors： Dai W,Vinnakota S,Qian X,Kunze DL,Sarkar HK

更新日期：1999-01-01 00:00:00

abstract：:Myosin prepared from tilapia (Serotherodon aureus) was complexed with 8-anilino-1-naphthalene sulfonate (ANS) and continuously heated at 1 degree C/min. A large increase in fluorescence was observed with a transition temperature of 34 degrees C. The effect of several salts on the transition temperature was tested. A p...

journal_title：Archives of biochemistry and biophysics

authors： Wicker L,Knopp JA

更新日期：1988-11-01 00:00:00

abstract：:A comprehensive investigation of peptides derived from the 22-29 region of human islet amyloid polypeptide (hIAPP) that contain phenylalanine analogs at position 23 with a variety of electron donating and withdrawing groups, along with heteroaromatic surrogates, has been employed to interrogate how π-electron distribu...

journal_title：Archives of biochemistry and biophysics

authors： Profit AA,Vedad J,Saleh M,Desamero RZ

更新日期：2015-02-01 00:00:00

abstract：:Phosphatidylethanols (PEths) are negatively charged diacyl phospholipids that are ubiquitously present in humans under the condition of alcohol intoxication. These lipids, derived in vivo from other naturally occurring phospholipids such as phosphatidylcholines (PC) via transphosphatidylation reaction as catalyzed by ...

journal_title：Archives of biochemistry and biophysics

authors： Li S,Lin H,Wang G,Huang CH

更新日期：2001-01-01 00:00:00

abstract：:Modulation of CYP3A1 and CYP3A2 mRNA expression by dexamethasone and by phenobarbital has been studied in immature (21-day-old) and adult (90-day-old) rat liver. Positive modulation of these forms by both agents markedly declines with the age of the animals. However, CYP3A2 mRNA, although physiologically extinguished ...

journal_title：Archives of biochemistry and biophysics

authors： Telhada MB,Pereira TM,Lechner MC

更新日期：1992-11-01 00:00:00

abstract：:Several 13C isotope effects of relevance to reactions involving carbamate and carbamoyl phosphate have been determined. The fractionation factor of carbamate relative to aqueous CO2 is 1.011; the equilibrium isotope effect on the reaction catalyzed by carbamate kinase is 0.9983. From these data we can calculate that t...

journal_title：Archives of biochemistry and biophysics

authors： Tipton PA,Cleland WW

更新日期：1988-01-01 00:00:00

abstract：:Binding of the mouse IgM antibody 6C4 is lost after treatment of human free secretory component with peptide N-glycosidase F (Bakos et al. (1991) J. Immunol. 146, 162-168) or periodate, suggesting that asparagine-linked oligosaccharides contain the epitope recognized by this antibody. Inhibition of antibody binding to...

journal_title：Archives of biochemistry and biophysics

authors： Yu H,Sipes JM,Cashel J,Bakos MA,Goldblum RM,Roberts DD

更新日期：1995-10-01 00:00:00

abstract：:Green tea (Camellia sinensis) is rich in catechins, of which (-)-epigallocatechin-3-gallate (EGCG) is the most abundant. Studies in animal models of carcinogenesis have shown that green tea and EGCG can inhibit tumorigenesis during the initiation, promotion and progression stages. Many potential mechanisms have been p...

journal_title：Archives of biochemistry and biophysics

authors： Lambert JD,Elias RJ

更新日期：2010-09-01 00:00:00

abstract：:The C6.5 endoglucanase from Bacillus subtilis catalyzes the hydrolyses of beta-glucans. This enzyme, which is also produced by many ruminant microbes, is not part of the normal digestive repertoire of monogastric animals. We have generated transgenic mice which express the C6.5 endoglucanase gene specifically in the p...

journal_title：Archives of biochemistry and biophysics

authors： Zhang JX,Meidinger R,Forsberg CW,Krell PJ,Phillips JP

更新日期：1999-07-15 00:00:00

abstract：:The binding site for ATP to tubulin was established by use of the photoaffinity label [gamma-32P]N3ATP. Photolysis of the analog in the presence of tubulin resulted in covalent modification of the protein as revealed by autoradiography of electropherograms. Scanning the autoradiograms showed that the ATP analog was bo...

journal_title：Archives of biochemistry and biophysics

authors： Zabrecky JR,Cole RD

更新日期：1983-09-01 00:00:00

abstract：:The polyglutamation kinetics of methotrexate (MTX) in MCF-7 human breast cancer cells have been formulated mathematically. The model takes account of glutamation and hydrolysis kinetics up through the pentaglutamate level, increased synthesis of dihydrofolate reductase following exposure to drug, reversible tight-bind...

journal_title：Archives of biochemistry and biophysics

authors： Morrison PF,Allegra CJ

更新日期：1987-05-01 00:00:00

abstract：:Previously, we reported that emptying of intracellular Ca(2+) pools with endoplasmatic Ca(2+)-ATP-ase inhibitor thapsigargin leads to the Na(+) influx in human lymphocytes (M. Tepel et al., 1994, J. Biol. Chem. 269, 26239-26242). In the present study we examined the mechanism underlying the thapsigargin-induced Na(+) ...

journal_title：Archives of biochemistry and biophysics

authors： Nofer JR,Junker R,Walter M,Seedorf U,Assmann G,Zidek W,Tepel M

更新日期：2000-02-15 00:00:00

abstract：:Uridine kinase is the rate-limiting enzyme in the pyrimidine salvage pathway of all mammalian cells. A cDNA for uridine kinase from mouse brain has been isolated, sequenced, and characterized. This is the first report of a complete nucleotide sequence for mammalian uridine kinase. The isolated cDNA is only 95% complet...

journal_title：Archives of biochemistry and biophysics

authors： Ropp PA,Traut TW

更新日期：1996-12-01 00:00:00

abstract：:Membrane dielectric as a primary basis for effects of ethanol was examined in synaptic plasma membranes (SPM) of genetically selected ethanol-sensitive long-sleep (LS) and ethanol-resistant short-sleep (SS) mice. Multifrequency phase and modulation of fluorometry of diphenylhexatriene (DPH) was used to resolve structu...

journal_title：Archives of biochemistry and biophysics

authors： Schroeder F,Colles SM,Kreishman GP,Heyliger CE,Wood WG

更新日期：1994-03-01 00:00:00

abstract：:Three iodinated derivatives of ubiquitin have been synthesized and these derivatives have been characterized in the ubiquitin-dependent protein degradation system. With chloramine-T as the oxidant, a derivative containing monoiodotyrosine is formed in the presence of 1 M KI and a derivative containing diiodotyrosine i...

journal_title：Archives of biochemistry and biophysics

authors： Cox MJ,Haas AL,Wilkinson KD

更新日期：1986-11-01 00:00:00

abstract：:Thymidylate synthase (TS) is an essential enzyme that must be expressed in all proliferating cells. The mouse TS promoter lacks a TATA box and an initiator element and initiates transcription over a broad region in cultured fibroblasts. The goal of this study was to determine if expression of the TS gene in a variety ...

journal_title：Archives of biochemistry and biophysics

authors： Lee Y,Shen G,Johnson LF

更新日期：1999-12-15 00:00:00