Human lactase-phlorizin hydrolase: evidence of dimerization in the endoplasmic reticulum.

abstract：:ADP-induced inhibition of mitochondrial F1-ATPase has been studied. It is shown that in the presence of magnesium and the absence of light, the photoaffinity ADP analog, 2-azido-ADP, induces a reversible inhibition of native F1 that is indistinguishable from that obtained with ADP. Photolysis of the inactive complex r...

journal_title：Archives of biochemistry and biophysics

authors： Chernyak BV,Cross RL

更新日期：1992-06-01 00:00:00

abstract：:The kinetics of bovine Cu,Zn superoxide dismutase were studied by pulse radiolysis. To ensure the absence of catalytically active free copper, commercially obtained holo-superoxide dismutase was demetallated, and the apo-superoxide dismutase concentrations were determined by isothermal titration calorimetry prior to r...

journal_title：Archives of biochemistry and biophysics

authors： Michel E,Nauser T,Sutter B,Bounds PL,Koppenol WH

更新日期：2005-07-15 00:00:00

abstract：:Thromboxane A2 synthase (TXAS) binds to the endoplasmic reticulum membrane and catalyzes both an isomerization of prostaglandin H2 (PGH2) to form thromboxane A2 (TXA2) and a fragmentation of PGH2 to form 12-hydroxy-5,8,10-heptadecatrienoic acid (HHT) and malondialdehyde (MDA). TXAS is a non-classic cytochrome P450 in ...

journal_title：Archives of biochemistry and biophysics

authors： Hsu PY,Wang LH

更新日期：2003-08-01 00:00:00

abstract：:Human tumor necrosis factor (TNF), first isolated by our group as an anticancer agent, has been now shown to be a primary mediator of inflammation. Till today 19 different members of the TNF superfamily which interact with 29 different receptors, have been identified. Most members of this family exhibit pro-inflammato...

journal_title：Archives of biochemistry and biophysics

authors： Gupta SC,Tyagi AK,Deshmukh-Taskar P,Hinojosa M,Prasad S,Aggarwal BB

更新日期：2014-10-01 00:00:00

abstract：:Photoinduced reduction of methylviologen (MV2+) by ethylenediaminetetraacetate (EDTA3-), which was sensitized by thiacarbocyanine dyes having long alkyl chains (C+m-n) embedded in palmitoyl lysophosphatidylcholine micelle and dipalmitoyl phosphatidylcholine liposomal membrane, was carried out. The formation rate of re...

journal_title：Archives of biochemistry and biophysics

authors： Nakagaki M,Komatsu H,Handa T

更新日期：1986-09-01 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：:Experimental and computational studies suggest that few general principles govern protein/protein interactions and aggregation. The knowledge of these rules may be exploited to design peptides that are able to interfere with the self-assembly and aggregation of proteins. This work is aimed to verify the validity of th...

journal_title：Archives of biochemistry and biophysics

authors： La Rosa C,Milardi D,Amato E,Pappalardo M,Grasso D

更新日期：2005-03-01 00:00:00

abstract：:Activation of the NLRP3 inflammasome plays an important role in high glucose- induced endothelial dysfunction in patients with type 2 diabetes mellitus (T2DM). Dulaglutide, a newly developed glucagon-like peptide-1 receptor (GLP-1R) agonist, has been approved for the management of T2DM. In the current study, we aimed ...

journal_title：Archives of biochemistry and biophysics

authors： Luo X,Hu Y,He S,Ye Q,Lv Z,Liu J,Chen X

更新日期：2019-08-15 00:00:00

abstract：:B4-2-1 cells (Lec15 cells) are Chinese hamster ovary cells deficient in mannosylphosphoryldolichol synthase activity. They synthesize the truncated lipid intermediate Man5GlcNAc2-P-P-dolichol rather than the Glc3Man9GlcNAc2-P-P-dolichol synthesized by wild-type cells. In this report we present evidence that these cell...

journal_title：Archives of biochemistry and biophysics

authors： Stoll J,Cacan R,Verbert A,Krag SS

更新日期：1992-12-01 00:00:00

abstract：:The thermodynamics of the drug-inhibitors acyclovir, ganciclovir, and 9-benzylguanine binding to human purine nucleoside phosphorylase (hsPNP) were determined from isothermal titration calorimetry as a function of the substrate phosphate ion (Pi) concentration from 0 to 0.125 M and temperature from 15 degrees C to 35 ...

journal_title：Archives of biochemistry and biophysics

authors： Todorova NA,Schwarz FP

更新日期：2008-12-15 00:00:00

abstract：:Oligomers and monomers of NADPH-cytochrome P450 reductase and cytochrome P450 LM2 (2B4) isolated from the liver microsomes of phenobarbital-treated rabbits were examined for physicochemical properties and catalytic activities. As measured using laser correlation spectroscopy the particle sizes of NADPH-cytochrome P450...

journal_title：Archives of biochemistry and biophysics

authors： Kanaeva IP,Dedinskii IR,Skotselyas ED,Krainev AG,Guleva IV,Sevryukova IF,Koen YM,Kuznetsova GP,Bachmanova GI,Archakov AI

更新日期：1992-11-01 00:00:00

abstract：:Nanomechanical properties of living cells, as measured with atomic force microscopy (AFM), are increasingly recognized as criteria that differentiate normal and pathologically altered cells. Locally measured cell elastic properties, described by the parameter known as Young's modulus, are currently proposed as a new d...

journal_title：Archives of biochemistry and biophysics

authors： Pogoda K,Pięta E,Roman M,Piergies N,Liberda D,Wróbel TP,Janmey PA,Paluszkiewicz C,Kwiatek WM

更新日期：2021-01-15 00:00:00

abstract：:We previously demonstrated that the expression of HSP20, a small heat shock protein, is inversely correlated with the progression of HCC. Inflammation is associated with HCC, and numerous cytokines, including TNF-α, act as key mediators in the progression of HCC. In the present study, we investigated whether HSP20 is ...

journal_title：Archives of biochemistry and biophysics

authors： Nagasawa T,Matsushima-Nishiwaki R,Yasuda E,Matsuura J,Toyoda H,Kaneoka Y,Kumada T,Kozawa O

更新日期：2015-01-01 00:00:00

abstract：:The oxidation of 6-hydroxy-2,2,5,7,8-pentamethylchroman, Trolox C, and alpha-tocopherol by horseradish peroxidase was examined by stopped-flow and ESR experiments. The catalytic intermediate of horseradish peroxidase during the oxidation of vitamin E analogues and vitamin E was invariably Compound II, and rate constan...

journal_title：Archives of biochemistry and biophysics

authors： Nakamura M,Hayashi T

更新日期：1992-12-01 00:00:00

abstract：:The complete amino acid sequence of Rapana thomasiana hemocyanin functional unit RtH2-e was determined by direct sequencing and matrix-assisted laser desorption ionization mass spectrometry of peptides obtained by cleavage with EndoLysC proteinase, chymotrypsin, and trypsin. The single-polypeptide chain of RtH2-e cons...

journal_title：Archives of biochemistry and biophysics

authors： Stoeva S,Idakieva K,Betzel C,Genov N,Voelter W

更新日期：2002-03-15 00:00:00

abstract：:The state of the various, spectroscopically distinguishable copper sites (type 1, type 2, and type 3 copper) of human ceruloplasmin was investigated by electron spin resonance (ESR) spectroscopy. The ESR measurements were performed at 100 K and at X-band during the reaction of the protein with either ascorbate or with...

journal_title：Archives of biochemistry and biophysics

authors： Musci G,Bonaccorsi di Patti MC,Calabrese L

更新日期：1993-10-01 00:00:00

abstract：:Studies in eucaryotic cells (mainly animals and yeast) indicate that at least two DNA polymerases are involved in DNA replication at the level of the replication fork: DNA polymerase alpha, which is associated with DNA primase, is involved in the replication of the lagging strand; DNA polymerase delta, associated with...

journal_title：Archives of biochemistry and biophysics

authors： Richard MC,Litvak S,Castroviejo M

更新日期：1991-05-15 00:00:00

abstract：:The hydrolysis of 32 X-phenyl-N-methanesulfonyl glycinates by papain was investigated. It was found that the variation in the Michaelis constants could be rationalized by the following correlation equation: log 1/Km = 0.61 pi '3 + 0.46 MR4 + 0.55 sigma + 2.00 with a correlation coefficient of 0.945. In this expression...

journal_title：Archives of biochemistry and biophysics

authors： Carotti A,Smith RN,Wong S,Hansch C,Blaney JM,Langridge R

更新日期：1984-02-15 00:00:00

abstract：:Enzymes subjected to freeze-thawing are known to be protected by polymers that are preferentially excluded from the hydrated surface of proteins [reviewed in Carpenter et al. (1994) ACS Symp. Ser. 567, 134-147]. Preferentially excluded solutes are also known to stabilize quaternary structure, which enhances the thermo...

journal_title：Archives of biochemistry and biophysics

authors： Anchordoquy TJ,Carpenter JF

更新日期：1996-08-15 00:00:00

abstract：:A cyanide-insensitive superoxide dismutase was purified to electrophoretic homogeneity from leaves of the eucaryote, Ginkgo biloba L. A molecular mass of 47,000 was determined for the enzyme, which consisted of two subunits of equal size. The enzyme preparation contained two isoenzymes with isoelectric points of 5.25 ...

journal_title：Archives of biochemistry and biophysics

authors： Duke MV,Salin ML

更新日期：1985-11-15 00:00:00

abstract：:Thyroid peroxidase (TPO) simultaneously catalyzes two very different types of reaction in the thyroid gland- iodination and coupling. The present study addresses the mechanism of this simultaneous dual activity. Compound I, the two-electron oxidation product of TPO, exists in two different forms--an oxoferryl porphyri...

journal_title：Archives of biochemistry and biophysics

authors： Taurog A,Dorris ML,Doerge DR

更新日期：1996-06-01 00:00:00

abstract：:The conversion of the precursor of apolipoprotein A-I (proapoA-I) to apolipoprotein A-I (apoA-I) is known to occur extracellularly by an enzyme that has been shown to be present in plasma. The hepatocarcinoma-derived cell line Hep G2, when grown in culture, secretes proapoA-I. We now show that this cell line also secr...

journal_title：Archives of biochemistry and biophysics

authors： Edelstein C,Kaiser M,Piras G,Scanu AM

更新日期：1988-11-15 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：:The zaragozic acids are potent inhibitors of squalene synthase. In vivo studies in mice confirmed our earlier observations that inhibition of squalene synthase by zaragozic acid A was accompanied by an increase in the incorporation of label from [3H]mevalonate into farnesyl-diphosphate (FPP)-derived isoprenoic acids (...

journal_title：Archives of biochemistry and biophysics

authors： Vaidya S,Bostedor R,Kurtz MM,Bergstrom JD,Bansal VS

更新日期：1998-07-01 00:00:00

abstract：:Nitric oxide (.NO) and peroxynitrite (ONOO-) inhibit enzymes that depend on metal cofactors or oxidizable amino acids for activity. Since xanthine oxidase (XO) is a 2(2Fe2S) enzyme having essential sulfhydryl groups linked with Mo-pterin cofactor function, the influence of .NO and ONOO- on purified bovine XO was deter...

journal_title：Archives of biochemistry and biophysics

authors： Houston M,Chumley P,Radi R,Rubbo H,Freeman BA

更新日期：1998-07-01 00:00:00

abstract：:Human alcohol dehydrogenases (ADH1 and ADH4) actively use retinoids oxidized at the cyclohexenyl ring (4-oxo-, 4-hydroxy-, and 3,4-didehydro-retinoids), which are functional compounds in several cells and tissues (i.e., in human skin). Remarkably, activities with 4-oxo-retinal and 4-hydroxy-retinol (kcat = 2050 min(-1...

journal_title：Archives of biochemistry and biophysics

authors： Martras S,Alvarez R,Gallego O,Domínguez M,de Lera AR,Farrés J,Parés X

更新日期：2004-10-15 00:00:00

abstract：:In the present study steered molecular dynamics simulations were applied to investigate the unbinding process of the complex of human carbonic anhydrase with the natural HCO3(-) and promiscuous H2NCOHN(-) products. This process is crucial for restoring the catalytic cycle of the enzyme. This investigation set out to g...

journal_title：Archives of biochemistry and biophysics

authors： Piazzetta P,Marino T,Russo N

更新日期：2015-09-15 00:00:00

abstract：:We propose that adverse effects of the antibiotic metronidazole may be due, wholly or in part, to its conversion to a thiamine analog and consequent vitamin B1 antagonism. Consistent with this hypothesis, the drug is accepted as a substrate for the thiaminase (EC 2.5.1.2) elaborated as an exoenzyme by the human gut fl...

journal_title：Archives of biochemistry and biophysics

authors： Alston TA,Abeles RH

更新日期：1987-09-01 00:00:00

abstract：:The effects of positively charged compounds on a plasma membrane, type III phosphatidylinositol 4-kinase were studied. To determine whether the enzyme would respond differently to the compounds in a membrane-associated versus a soluble state, both the plasma membrane and solubilized (released by 0.01% (v/v) Triton X-1...

journal_title：Archives of biochemistry and biophysics

authors： Yang W,Boss WF

更新日期：1994-08-15 00:00:00

abstract：:Tyr-503 of beta-galactosidase was specifically replaced with Phe, His, Cys, and Lys using site-directed mutagenesis. The normal enzyme and the substituted enzymes were purified. The activities of each of the substituted enzymes with o-nitrophenyl-beta-D-galactopyranoside (ONPG) and p-nitrophenyl-beta-D-galactopyronosi...

journal_title：Archives of biochemistry and biophysics

authors： Ring M,Huber RE

更新日期：1990-12-01 00:00:00