Phospholipase C from Clostridium perfringens: preparation and characterization of homogeneous enzyme.

abstract：:In this report we provide data, for the first time, demonstrating the conversion of the heme moiety of certain cytochrome P-450 and P-420 preparations, to biliverdin, catalyzed by heme oxygenase. We have used purified preparations of cytochromes P-450c, P-450b, P-450/P-420c, or P-450/P-420b as substrates in a heme oxy...

journal_title：Archives of biochemistry and biophysics

authors： Kutty RK,Daniel RF,Ryan DE,Levin W,Maines MD

更新日期：1988-02-01 00:00:00

abstract：:Cancer osaka thyroid (COT), a human MAP 3 K, is essential for lipopolysaccharide activation of the Erk MAPK cascade in macrophages. COT 30--467 is insoluble, whereas low levels of COT 30--397 can be expressed, but this protein is unstable. However, both COT 30--467 and COT 30--397 are expressed in a soluble and stable...

journal_title：Archives of biochemistry and biophysics

authors： Jia Y,Quinn CM,Bump NJ,Clark KM,Clabbers A,Hardman J,Gagnon A,Kamens J,Tomlinson MJ,Wishart N,Allen H

更新日期：2005-09-01 00:00:00

abstract：:An in vitro acrosome-like reaction was induced in spermatozoa from the boar cauda epididymis by incubation in Tyrode's solution containing 1 mg/ml fatty acid-free bovine serum albumin. Plasma membranes were isolated from the spermatozoa at different times during the incubation and analyzed for their lipid composition....

journal_title：Archives of biochemistry and biophysics

authors： Nikolopoulou M,Soucek DA,Vary JC

更新日期：1986-10-01 00:00:00

abstract：:Differentiation of pluripotent and lineage restricted stem cells such as neural stem cells (NSCs) was studied on conducting substrates of various nature without perturbation of the genome with exogenous genetic material or chemical stimuli. Primary mouse adult neural stem cells (NSCs) and P19 pluripotent embryonal (P1...

journal_title：Archives of biochemistry and biophysics

authors： Ostrakhovitch EA,Byers JC,O'Neil KD,Semenikhin OA

更新日期：2012-12-01 00:00:00

abstract：:Purified NAD-malic enzyme from Ascaris suum is rapidly inactivated by the arginine reagent, 2,3-butanedione, and this inactivation is facilitated by 30 mM borate. Determination of the inactivation rate as a function of butanedione concentration suggests a second-order process overall, which is first order in butanedio...

journal_title：Archives of biochemistry and biophysics

authors： Rao GS,Kong CT,Benjamin RC,Harris BG,Cook PF

更新日期：1987-05-15 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：:Transport of the antifolate cancer drug methotrexate was studied in vesicles isolated from the basolateral membrane of rat liver. Transport of methotrexate by basolateral membrane vesicles (BLMVs) was mostly via uptake into an osmotically active intravesicular space, with some binding (approximately 9%), as shown by i...

journal_title：Archives of biochemistry and biophysics

authors： Horne DW,Reed KA

更新日期：1992-10-01 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

authors： Lesca P,Peryt B,Soues S,Maurel P,Cravedi JP

更新日期：1993-05-15 00:00:00

abstract：:We have previously shown that rat hepatic cytochromes P450f, P450g, P450h, and P450i possess a high degree of immunochemical and, presumably, structural relatedness. Polyclonal antibodies directed against cytochromes P450f and P450g were made monospecific by immunoabsorption against the cross-reactive proteins. The sp...

journal_title：Archives of biochemistry and biophysics

authors： Bandiera S,Ryan DE,Levin W,Thomas PE

更新日期：1986-08-01 00:00:00

abstract：:The primary site of action for the novel antibiotic, bicyclomycin, in Escherichia coli has been identified to be the rho transcription termination factor. The inhibition of rho poly(C)-stimulated hydrolysis of ATP by bicyclomycin has been found to proceed by a non-competitive, reversible pathway with respect to ATP (K...

journal_title：Archives of biochemistry and biophysics

authors： Park HG,Zhang X,Moon HS,Zwiefka A,Cox K,Gaskell SJ,Widger WR,Kohn H

更新日期：1995-11-10 00:00:00

abstract：:The parent pyridine nucleotide NAD is the end product of oxidative tryptophan catabolism via the kynurenine pathway. Indoleamine 2, 3-dioxygenase, the rate-limiting enzyme for this pathway, is induced by the proinflammatory cytokine interferon-gamma. The aim of this study was to investigate the effect of interferon-ga...

journal_title：Archives of biochemistry and biophysics

authors： Grant RS,Passey R,Matanovic G,Smythe G,Kapoor V

更新日期：1999-12-01 00:00:00

abstract：:Conversion of a steroid receptor complex from the 8 S to the 4S form results in new interactions between the steroid and the receptor and/or formation of new intra-protein bonds within the receptor molecule itself. These bonds must be broken before the steroid is released. In order to localize these newly formed inter...

journal_title：Archives of biochemistry and biophysics

authors： Wolfson AJ,Ryu ML,Baghdady R

更新日期：1991-02-01 00:00:00

abstract：:Subcutaneous implantation of demineralized bone matrix in rats induces migration of host cells into the site and results in the sequential development of cartilage and bone. The biosynthesis and metabolic fate of proteoglycans in the plaques at the bone matrix implantation site were investigated by [35S]sulfate labeli...

journal_title：Archives of biochemistry and biophysics

authors： Tian MY,Yanagishita M,Hascall VC,Reddi AH

更新日期：1986-05-15 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 various interactions of rat liver dihydrofolate reductase with two unconjugated 7,8-dihydropteridines, 7,8-dihydrobiopterin and 6-methyl-7,8-dihydropteridine, have been compared with those of 7,8-dihydrofolate and folate. Of particular interest was the reactivity demonstrated by 7,8-dihydrobiopterin because of the...

journal_title：Archives of biochemistry and biophysics

authors： Webber S,Whiteley JM

更新日期：1985-02-01 00:00:00

abstract：:Three strains of Escherichia coli differing only in the catalase locus mutated by transposon Tn10 were constructed. These strains produced only catalase HPI (katE::Tn10 and katF::Tn10 strains) or catalase HPII (katG::Tn10). HPI levels increased gradually about twofold during logarithmic growth but did not increase dur...

journal_title：Archives of biochemistry and biophysics

authors： Loewen PC,Switala J,Triggs-Raine BL

更新日期：1985-11-15 00:00:00

abstract：:An inorganic pyrophosphatase (PPase) was purified from thylakoid membrane of spinach leaves to electrophoretic purity by methods including detergent solubilization, ammonium sulfate fractionation, and successive chromatographic techniques. Current protocol yielded about 10% recovery of total activity with a 30-fold pu...

journal_title：Archives of biochemistry and biophysics

authors： Jiang SS,Fan LL,Yang SJ,Kuo SY,Pan RL

更新日期：1997-10-01 00:00:00

abstract：:The relationships between conformational dynamics, stability and protein function are not obvious. Frataxin (FXN) is an essential protein that forms part of a supercomplex dedicated to the iron-sulfur (Fe-S) cluster assembly within the mitochondrial matrix. In humans, the loss of FXN expression or a decrease in its fu...

journal_title：Archives of biochemistry and biophysics

authors： Castro IH,Bringas M,Doni D,Noguera ME,Capece L,Aran M,Blaustein M,Costantini P,Santos J

更新日期：2020-09-30 00:00:00

abstract：:The major phenobarbital-inducible form of cytochrome P-450 (cytochrome P-450 PB) was purified to homogeneity from rat liver microsomes and rabbit antibodies prepared against the purified enzyme. Using these antibodies, an enzyme-linked immunosorbent assay (ELISA) was developed for the detection of cytochrome P-450 PB ...

journal_title：Archives of biochemistry and biophysics

authors： Seidel SL,Shawver LK,Shires TK

更新日期：1984-03-01 00:00:00

abstract：:Swainsonine, a plant toxin, strongly inhibits certain alpha-D-mannosidases but has no effect on others [D. R. P. Tulsiani, T. M. Harris, and O. Touster (1982) J. Biol. Chem. 257, 7936-7939]. The reversible inhibition of jack bean and lysosomal alpha-D-mannosidases has previously been suggested to be similar in nature ...

journal_title：Archives of biochemistry and biophysics

authors： Tulsiani DR,Broquist HP,Touster O

更新日期：1985-01-01 00:00:00

abstract：:Calcium-induced changes in protein solubility play a role in a variety of important biological processes including the deposition of bone and dentin and the secretion of milk. The phenomena of salt-induced (calcium) precipitation of proteins (salting-out), and the resolubilization of these proteins at higher salt conc...

journal_title：Archives of biochemistry and biophysics

authors： Farrell HM Jr,Kumosinski TF,Pulaski P,Thompson MP

更新日期：1988-08-15 00:00:00

abstract：:The relative reactivities of lysine residues of tropomyosin complexed with troponin have been measured in order to locate the binding site of troponin on tropomyosin in a complex between the two native proteins. The lysines were labeled with acetic anhydride using a competitive labeling procedure and the relative reac...

journal_title：Archives of biochemistry and biophysics

authors： Hitchcock-DeGregori SE,Lewis SF,Mistrik M

更新日期：1988-08-01 00:00:00

abstract：:Pyruvate dehydrogenase (E1), an alpha(2)beta(2) tetramer, catalyzes the oxidative decarboxylation of pyruvate and reductive acetylation of lipoyl moieties of the dihydrolipoamide acetyltransferase. The roles of betaW135, alphaP188, alphaM181, alphaH15, and alphaR349 of E1 determined by kinetic analysis were reassessed...

journal_title：Archives of biochemistry and biophysics

authors： Korotchkina LG,Ciszak EM,Patel MS

更新日期：2004-09-15 00:00:00

abstract：:The mitochondrial ATP synthase/ATPase (F0F1 ATPase) is perhaps the most complex enzyme known. In animal systems it consists of a minimum of 11 different polypeptide chains, 10 (or more) of which appear to be essential for function, and 1 called the "ATPase inhibitor peptide" which is involved in regulation. Recent stu...

journal_title：Archives of biochemistry and biophysics

authors： Schwerzmann K,Pedersen PL

更新日期：1986-10-01 00:00:00

abstract：:Csk is a protein tyrosine kinase that phosphorylates other protein tyrosine kinases of the Src family and down-regulates their activities. It is not known how Csk is regulated. We investigated the possibility that Csk is regulated through phosphorylation by examining if Csk can serve as an in vitro substrate for a pan...

journal_title：Archives of biochemistry and biophysics

authors： Sun G,Ke S,Budde RJ

更新日期：1997-07-15 00:00:00

abstract：:The application of molecular dynamics simulations to study the folding and dynamics of peptides has attracted a lot of interest in the last couple of decades. Following the successful prediction of the folding of several proteins using molecular simulation, foldable peptides emerged as a favourable system mainly due t...

journal_title：Archives of biochemistry and biophysics

authors： Georgoulia PS,Glykos NM

更新日期：2019-03-30 00:00:00

abstract：:Piratoxins (PrTX) I and III are phospholipases A2 (PLA2s) or PLA2 homologue myotoxins isolated from Bothrops pirajai snake venom, which also induce myonecrosis, bactericidal activity against Escherichia coli, disruption of artificial membranes, and edema. PrTX-III is a catalytically active hemolytic and anticoagulant ...

journal_title：Archives of biochemistry and biophysics

authors： Soares AM,Andrião-Escarso SH,Bortoleto RK,Rodrigues-Simioni L,Arni RK,Ward RJ,Gutiérrez JM,Giglio JR

更新日期：2001-03-15 00:00:00

abstract：:Phenylalanine ammonia-lyase forms trans-cinnamate from L-phenylalanine, and thus stands at a gateway to secondary metabolism in higher plants. L-alpha-Amino-oxy-beta-phenylpropanoic acid (L-AOPP), a very effective competitive inhibitor of this enzyme, is most probably a transition-state analog for the elimination reac...

journal_title：Archives of biochemistry and biophysics

authors： Jones DH,Northcote DH

更新日期：1984-11-15 00:00:00

abstract：:Regional hyperthermia has potential for human cancer treatment, particularly in combination with systemic chemotherapy or radiotherapy. The mechanisms involved in heat-induced cell killing are currently unknown. Hyperthermia may increase oxidative stress in cells, and thus, oxidative stress could have a role in the me...

journal_title：Archives of biochemistry and biophysics

authors： Lord-Fontaine S,Averill DA

更新日期：1999-03-15 00:00:00

abstract：:A chromatographic adsorbent (TED-Sepharose) capable of chelating various di- and trivalent metal ions was prepared by introducing tris(carboxymethyl)ethylenediamine into agarose. This gel was charged with Al3+, Ga3+, In3+, and Tl3+ to form immobilized-metal affinity adsorbents, and their adsorption behavior toward ser...

journal_title：Archives of biochemistry and biophysics

authors： Porath J,Olin B,Granstrand B

更新日期：1983-09-01 00:00:00