Dual hydrolytic role for Pb(II) ions.

abstract：:Three different hydrogenases (isolated from Clostridium pasteurianum, Desulfovibrio desulfuricans strain Norway 4 and D. baculatus 9974) added to a suspension of TiO2 (anatase) powder are able to catalyze H2 evolution under band gap illumination of the semiconducting particles, and in the presence of EDTA or methanol ...

journal_title：Biochimie

authors： Cuendet P,Rao KK,Grätzel M,Hall DO

更新日期：1986-01-01 00:00:00

abstract：:The interactions of 6-8 ring hairpin polyamides (PAs) with the minor groove of DNA have been investigated extensively. More recent studies of large antiviral PAs (14-20 rings) active against small DNA tumor viruses lead to questions regarding the extent to which the DNA binding behaviors of the well studied, smaller P...

journal_title：Biochimie

authors： Song Y,Niederschulte J,Bales KN,Park AH,Bashkin JK,Dupureur CM

更新日期：2019-10-01 00:00:00

abstract：:A soluble hydrogenase from the halophilic sulfate reducing bacterium Desulfovibrio salexigens, strain British Guiana (NCIB 8403) has been purified to apparent homogeneity with a final specific activity of 760 mumoles H2 evolved/min/mg (an overall 180-fold purification with 20% recovery yield). The enzyme is composed o...

journal_title：Biochimie

authors： Teixeira M,Moura I,Fauque G,Czechowski M,Berlier Y,Lespinat PA,Le Gall J,Xavier AV,Moura JJ

更新日期：1986-01-01 00:00:00

abstract：:Honeybee-plant relationships are based on a conditioning process in which olfactory (plant aroma) and gustatory cues (mainly nectars) are closely linked, leading to a selective foraging behaviour. Among crops dependent upon entomophilous cross-pollination, the sunflower has recently undergone extensive expansion due t...

journal_title：Biochimie

authors： Pham-Delegue MH,Etievant P,Masson C

更新日期：1987-06-01 00:00:00

abstract：:Lysophosphatidic acid (LPA), a naturally occurring bioactive phospholipid, mediates a multitude of (patho)physiological events including activation of mitogen-activated protein kinases (MAPKs). As LPA may induce cellular reponses in human osteosarcoma, the present study aimed at investigating expression of various LPA...

journal_title：Biochimie

authors： Windischhofer W,Huber E,Rossmann C,Semlitsch M,Kitz K,Rauh A,Devaney T,Leis HJ,Malle E

更新日期：2012-09-01 00:00:00

abstract：:Protein 3D structures support their biological functions. As the number of protein structures is negligible in regards to the number of available protein sequences, prediction methodologies relying only on protein sequences are essential tools. In this field, protein secondary structure prediction (PSSPs) is a mature ...

journal_title：Biochimie

authors： de Brevern AG

更新日期：2020-12-01 00:00:00

abstract：:Since the initial identification of leptin as the product of the ob gene in 1994, the signaling pathways by which this hormone alters cell physiology have been the subject of extensive investigations. The fact that leptin can induce nitric oxide (NO) production was first demonstrated in studies of the pituitary gland ...

journal_title：Biochimie

authors： Joffin N,Niang F,Forest C,Jaubert AM

更新日期：2012-10-01 00:00:00

abstract：:Cotranslational translocation of exportable proteins across the RER membrane prior to their release into the extracellular space has been essentially described by use of canine pancreatic microsomal membranes. Intracisternal segregation of nascent secretory proteins was observed to be irreversible and proteolytic remo...

journal_title：Biochimie

authors： Scheele GA

更新日期：1988-09-01 00:00:00

abstract：:Phosphatidic acid phosphohydrolase-1 (PAP-1) activity is reversibly inhibited by fatty acids and their acyl-CoA esters and it appears paradoxical that these effectors have been reported to increase the liver's esterification capacity by translocating the rate-limiting enzyme PAP-1 from cytosol to the endoplasmic retic...

journal_title：Biochimie

authors： Elabbadi N,Day CP,Gamouh A,Zyad A,Yeaman SJ

更新日期：2005-05-01 00:00:00

abstract：:Since discovery of high-temperature superconductive (HTS) ceramics by Bednorz and Muller in 1986, there has been an accelerated development of cold technologies in industry, including the domain of NMR detection. The purpose of this paper is to fix ideas about the stage that cryogenic radio frequency (RF) probe techni...

journal_title：Biochimie

authors： Darrasse L,Ginefri JC

更新日期：2003-09-01 00:00:00

abstract：:The nuclear metabolism of poly(ADP-ribose) is mainly regulated by poly(ADP-ribose) polymerase-1 (PARP-1) and by poly(ADP-ribose) glycohydrolase (PARG). A PARP-like enzyme, V-PARP, and a PARG isoform are present in the extra-nuclear compartment of mammalian cells, even if poly(ADP-ribose) has never been detected therei...

journal_title：Biochimie

authors： Rossi L,Denegri M,Torti M,Poirier GG,Ivana Scovassi A

更新日期：2002-12-01 00:00:00

abstract：:We have previously proposed that the rate of ribosome function during balanced growth in E. coli, expressed as the rate of peptide chain elongation, is adjusted by a feedback mechanism: whenever that rate is submaximal (i.e. below 22 amino acid residues polymerized per active ribosome at 37 degrees C), the feedback si...

journal_title：Biochimie

authors： Bremer H,Dennis P

更新日期：2008-03-01 00:00:00

abstract：:In this review, we show how the stability of the asymmetric transverse distribution of phospholipids and the physiological role of the asymmetric distribution can be explained. Experiments with paramagnetic or fluorescent lipids enabled us to show that in fresh red blood cells, i.e. containing ATP, and in resealed gho...

journal_title：Biochimie

authors： Devaux PF,Zachowski A,Favre E,Fellmann P,Cribier S,Geldwerth D,Hervé P,Seigneuret M

更新日期：1986-03-01 00:00:00

abstract：:Berardinelli-Seip congenital lipodystrophy (BSCL) is a rare recessive disease characterized by near absence of adipose tissue and severe insulin resistance. In most cases, BSCL is due to loss-of-function mutations in the genes encoding either seipin of unknown function or 1-acyl-glycerol-3-phosphate O-acyltransferase ...

journal_title：Biochimie

authors： Boutet E,El Mourabit H,Prot M,Nemani M,Khallouf E,Colard O,Maurice M,Durand-Schneider AM,Chrétien Y,Grès S,Wolf C,Saulnier-Blache JS,Capeau J,Magré J

更新日期：2009-06-01 00:00:00

abstract：:To elucidate the metabolic function of mRNA polyadenylation in Escherichia coli. we searched for a polyadenylate-binding protein as a potential mediator of the function of the poly(A) moiety. Using a nitrocellulose filter-binding assay and a Northwestern blot technique, a protein in the ribosomal supernatant fraction ...

journal_title：Biochimie

authors： Kalapos MP,Paulus H,Sarkar N

更新日期：1997-09-01 00:00:00

abstract：:The cholesterol lowering drug lovastatin, a competitive inhibitor of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase, blocks DNA synthesis and proliferation of thyrotropin (TSH) primed FRTL-5 rat thyroid cells. The blockade can be completely prevented and/or reversed by mevalonate and largely prevented and/o...

journal_title：Biochimie

authors： Bifulco M,Laezza C,Aloj SM

更新日期：1999-04-01 00:00:00

abstract：:An apparatus for chemi- and bioluminescence measurements is described. The main features are in high sensitivity: for example, 5 10(-12) M adenosine triphosphate, 5 10(-7) M glucose, 2 10(-9) M perhydrol and 4 10(-13) M peroxidase are easily detected; its fast mixing time and the possibility of injecting a reactant, a...

journal_title：Biochimie

authors： Arrio B,Lecuyer B,Dupaix A,Volfin P,Jousset M,Carrette A

更新日期：1980-01-01 00:00:00

abstract：:In relation to decreased metabolic sensitivity to catecholamines observed, in vitro, in brown fat of cold-acclimated rats, beta-adrenergic receptors were studied in isolated cells and in a crude membrane preparation from rat interscapular brown adipose tissue. [3H] dihydroalprenolol binding had the same characteristic...

journal_title：Biochimie

authors： Senault C,Le Comte V,Portet R

更新日期：1984-07-01 00:00:00

abstract：:The intervention of pyruvate in glucose metabolism was investigated during hypoxic stress in tumour cell cultures having respiratory capacities under normoxic conditions. Results obtained with nuclear magnetic resonance (NMR) spectroscopy showed that, under normoxic conditions, rat glioma C6 and human hepatoma Hep G2 ...

journal_title：Biochimie

authors： Perrin A,Roudier E,Duborjal H,Bachelet C,Riva-Lavieille C,Leverve X,Massarelli R

更新日期：2002-10-01 00:00:00

abstract：:Plant sucrose transporters (SUTs) are functional as sucrose-proton-cotransporters with an optimal transport activity in the acidic pH range. Recently, the pH optimum of the Solanum tuberosum sucrose transporter StSUT1 was experimentally determined to range at an unexpectedly low pH of 3 or even below. Various research...

journal_title：Biochimie

authors： Krügel U,Wiederhold E,Pustogowa J,Hackel A,Grimm B,Kühn C

更新日期：2013-11-01 00:00:00

abstract：:Our previous researches showed that nitronyl nitroxyl derivatives, NNP and NNVP were good anti-oxidants and provided radioprotective effects in C6 cells. The objective of the present study is to investigate the possible antiviral effects and underlying pharmacological of the two nitronyl nitroxide radicals against CVB...

journal_title：Biochimie

authors： Wang H,Gao P,Jing L,Qin X,Sun X

更新日期：2012-09-01 00:00:00

abstract：:Using a new extended set of 13 amber suppressors in E coli, systematic amino-acid replacements were performed at positions 104(E) and 238(G) of TEM-1 beta-lactamase from PUC19. The enzyme is tolerant to most substitutions tested at position 104. Missense revertants E104K, E104S or E104Y exhibited only minor changes in...

journal_title：Biochimie

authors： Lenfant F,Labia R,Masson JM

更新日期：1990-06-01 00:00:00

abstract：:Catalase (E.C 1.11.1.6) was purified from leaves of Zandedeschia aethiopica to apparent homogeneity by a one-step hydrophobic interaction chromatography on a phenyl Sepharose CL-4B column. The purified enzyme preparation was obtained with a final recovery of enzyme activity of about 61% and a specific activity of 146 ...

journal_title：Biochimie

authors： Trindade H,Karmali A,Pais MS

更新日期：1988-12-01 00:00:00

abstract：:Acetylcholinesterase (AChE) has been identified and purified from the venom of desert cobra (W aegyptia) to apparent homogeneity using a TSK G 3000 SW gel filtration column and a Mono Q anion-exchange column. AChE was purified to homogeneity as established by sodium dodecylsulfate/polyacrylamide gel electrophoresis. T...

journal_title：Biochimie

authors： Duhaiman AS,Alhomida AS,Rabbani N,Kamal MA,al-Jafari AA

更新日期：1996-01-01 00:00:00

abstract：:This review discusses the regulation of a key controlling step in the initiation of protein synthesis, the binding of mRNA to ribosomes. Particular focus is given to the phosphorylation of the cap-binding factor, eIF-4E, and the role of this factor in the regulation of cell growth. ...

journal_title：Biochimie

authors： Sonenberg N

更新日期：1994-01-01 00:00:00

abstract：:Ferritins are ubiquitous iron-storage proteins found in all kingdoms of life. They share a common architecture made of 24 subunits of five α-helices. The recombinant Chlorobium tepidum ferritin (rCtFtn) is a structurally interesting protein since sequence alignments with other ferritins show that this protein has a si...

journal_title：Biochimie

authors： Arenas-Salinas M,Townsend PD,Brito C,Marquez V,Marabolli V,Gonzalez-Nilo F,Matias C,Watt RK,López-Castro JD,Domínguez-Vera J,Pohl E,Yévenes A

更新日期：2014-11-01 00:00:00

abstract：:Labeling of 21-kDa material was observed when bovine brain soluble fraction was incubated with [adenylate-32P]NAD+ in the presence of GTP. The 21-kDa substrate, slightly smaller than C3 substrate in size, was labeled even without C3 exoenzyme. GTP could be replaced by nucleoside triphosphates other than ATP while ATP ...

journal_title：Biochimie

authors： Badruzzaman M,Miyaoka T,Terashima M,Yamada K,Ohno T,Yamamori C,Tsuchiya M,Shimoyama M

更新日期：1997-07-01 00:00:00

abstract：:The synthesis of S100 protein increases toward the end of the exponential phase of growth of clonal rat glial cells C6 in monolayer culture. Moreover the synthesis of this protein can be increased by treatment of C6 cells with the lectin succinylated concanavalin A (succinyl ConA). In order to study the relationship b...

journal_title：Biochimie

authors： Marks A,Law J,Mahony J

更新日期：1983-11-01 00:00:00

abstract：:Bacteria of the Lactococcus (formerly lactic Streptococcus) genus are described to emphasize certain less well-known facts of importance in their successful use as dairy starters. Other streptococci (non-rod forms) are briefly characterized to emphasize their usefulness in industrial milk fermentations. ...

journal_title：Biochimie

authors： Sandine WE

更新日期：1988-04-01 00:00:00

abstract：:Skin aging is characterized by different features including wrinkling, atrophy of the dermis and loss of elasticity associated with damage to the extracellular matrix protein elastin. The aim of this study was to investigate the aging process of skin elastin at the molecular level by evaluating the influence of intrin...

journal_title：Biochimie

authors： Mora Huertas AC,Schmelzer CE,Hoehenwarter W,Heyroth F,Heinz A

更新日期：2016-09-01 00:00:00