Epigenetic modifications and mRNA levels of the imprinted gene Grb10 in serially passaged fibroblast cells.

abstract：:Because of the ability of photosensitizers to induce specific photochemical reactions in vivo, leading to cell injury and death, many such molecules have been considered as therapeutic agents. Among them two classes of sensitizers, i.e. furocoumarins (psoralens) and porphyrins, are currently used for the photochemothe...

journal_title：Biochimie

authors： Moreno G

更新日期：1986-06-01 00:00:00

abstract：:The biosynthesis of the beta-lactam antibiotic penicillin is an excellent model for the study of secondary metabolites produced by filamentous fungi due to the good background knowledge on the biochemistry and molecular genetics of the beta-lactam producing microorganisms. The three genes (pcbAB, pcbC, penDE) encoding...

journal_title：Biochimie

authors： Kosalková K,García-Estrada C,Ullán RV,Godio RP,Feltrer R,Teijeira F,Mauriz E,Martín JF

更新日期：2009-02-01 00:00:00

abstract：:Lysosomal cysteine proteinases were fractionated from partially purified rat muscle lysosomes. By gel filtration on Sephadex G75, cathepsin D was separated from two thiol-requiring proteolytic fractions of Mr 25 000 and 55 000, respectively. By chromatofocusing, the first fraction (Mr = 25 000) was resolved into three...

journal_title：Biochimie

authors： Obled A,Ouali A,Valin C

更新日期：1984-09-01 00:00:00

abstract：:We extracted from L. biflexa patoc a fraction F, reacting in hemagglutination and ring tests with sera prepared against more than ten different serogroups. This fraction contains mainly a polysaccharide (65 per cent), the role of which was clearly demonstrated in the precipitation reaction with homologous antisera, th...

journal_title：Biochimie

authors： Gabay J,Tinelli R

更新日期：1976-01-01 00:00:00

abstract：:Treatment of wild type Escherichia coli with cis -Pt(NH3)2Cl2 increased the survival and frequency of clear plaques formation of lambda phage damaged by UV radiation. The reactivation process was present in an uvrA mutant and abolished in a lexA host. Trans-Pt(NH3)2Cl2 and [Pt(dien) Cl]Cl (dien = 2HN-CH2-CH2NH-CH2-CH2...

journal_title：Biochimie

authors： Alazard RJ,Germanier M

更新日期：1982-08-01 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 four known ID proteins (ID1-4, Inhibitor of Differentiation) share a homologous helix loop helix (HLH) domain and act as dominant negative regulators of basic-HLH transcription factors. ID proteins also interact with many non-bHLH proteins in complex networks. The expression of ID proteins is increasingly observed...

journal_title：Biochimie

authors： Sharma P,Chinaranagari S,Chaudhary J

更新日期：2015-05-01 00:00:00

abstract：:Crystals of flavoenzyme L-lactate oxidase from Aerococcus viridans (LOX) have been obtained that diffract to 3.0 A resolution (P2(1)2(1)2(1), a = 118.4 A, b = 138.4 A, c = 194.6 A). Crystallographic studies suggest that the enzyme may exist as an octameric form with non-crystallographic two- and four-fold axes in the ...

journal_title：Biochimie

authors： Morimoto Y,Yorita K,Aki K,Misaki H,Massey V

更新日期：1998-04-01 00:00:00

abstract：:Recombinant plasmids containing head-to-tail copies of different coat-protein replacement genomes of wheat dwarf virus (WDV) were used to study the mechanism leading to the release of replicating unit-length molecules in suspension culture cells of Triticum monococcum. For plasmids bearing two complete genomes, the vi...

journal_title：Biochimie

authors： Heyraud F,Matzeit V,Schaefer S,Schell J,Gronenborn B

更新日期：1993-01-01 00:00:00

abstract：:Long-term treatment with ambroxol (ABX), a bronchial expectorant, was found to prevent acute exacerbation of chronic obstructive pulmonary disease (AECOPD). The underlying mechanism remains unclear. To address this, we have investigated the effect of ABX on critical antioxidant proteins thioredoxin (Trx) and thioredox...

journal_title：Biochimie

authors： Huang J,Xu J,Tian L,Zhong L

更新日期：2014-02-01 00:00:00

abstract：:DNA replication in Escherichia coli is controlled at the initiation stage, possibly by regulation of the essential activity of DnaA protein. The cellular membrane has long been hypothesized to be involved in chromosomal replication. Accumulating evidence, both in vitro and in vivo, that supports the importance of memb...

journal_title：Biochimie

authors： Crooke E

更新日期：2001-01-01 00:00:00

abstract：:The family of interferon regulatory transcription factors (IRF) participates in the virus-induced and dsRNA-stimulated transcriptional regulation of either type I IFN genes or a definite set of genes which can also be activated by IFN. In this review, we place emphasis on the role of IRF-3 that associates with the coa...

journal_title：Biochimie

authors： Bragança J,Civas A

更新日期：1998-08-01 00:00:00

abstract：:The effect of bis-(p-nitrophenyl)phosphate on various glycosyltransferases involved in protein glycosylation (sialyl-, fucosyl-, galactosyl-, mannosyl- and glucosyltransferases) have been studied using crude enzyme preparations solubilized from rat spleen lymphocytes. Bis-(p-nitrophenyl)phosphate appears as a common i...

journal_title：Biochimie

authors： Guette F,Cacan R,Montreuil J,Verbert A

更新日期：1983-10-01 00:00:00

abstract：:Gallium, a group IIIa metal salt, has been demonstrated to be an effective immunosuppressive agent. Gallium has also been shown to inhibit the production of inflammatory cytokines, such as IL-1beta, produced by macrophage-like cells in vitro. To further characterize the effects of gallium on the inflammatory process, ...

journal_title：Biochimie

authors： Panagakos FS,Kumar E,Venescar C,Guidon P

更新日期：2000-02-01 00:00:00

abstract：:Epigenetic alterations are involved in every step of carcinogenesis. The development of chromatin-modifying agents (CMAs) has provided the ability to fight cancer by reversing these alterations. Currently, four CMAs have been approved for cancer treatment; two DNA demethylating agents and two deacetylase inhibitors. A...

journal_title：Biochimie

authors： Seidel C,Florean C,Schnekenburger M,Dicato M,Diederich M

更新日期：2012-11-01 00:00:00

abstract：:Elongation factor 1 alpha (EF-1 alpha) was purified to homogeneity from full-grown oocytes of Xenopus laevis. This protein is encoded by a gene previously shown to be expressed in male and female germ cells, and repressed in somatic cells. The purified protein was identified with EF-1 alpha on criteria of molecular ma...

journal_title：Biochimie

authors： Morales J,Mulner-Lorillon O,Denis H,Bellé R

更新日期：1991-09-01 00:00:00

abstract：:A variety of transcription attenuation mechanisms are used by bacteria to regulate gene and operon expression. This review summarizes previous and current studies designed to elucidate the features of the specific attenuation mechanisms that regulate expression of the tryptophanase (tna) operon of Escherichia coli and...

journal_title：Biochimie

authors： Yanofsky C,Konan KV,Sarsero JP

更新日期：1996-01-01 00:00:00

abstract：:rBmTI-A is a recombinant serine protease inhibitor that belongs to the Kunitz-BPTI family and that was cloned from Rhipicephalus microplus tick. rBmTI-A has inhibitory activities on bovine trypsin, human plasma kallikrein, human neutrophil elastase and plasmin with dissociation constants in nM range. It is characteriz...

journal_title：Biochimie

authors： Bomediano Camillo LM,Ferreira GC,Duran AFA,da Silva FRS,Garcia W,Scott AL,Sasaki SD

更新日期：2020-12-24 00:00:00

abstract：:Disappearance of 7-ethylguanine and O6-ethylguanine lesions from nuclear DNA is observed on incubation of isolated rat liver nuclei previously treated with ethylnitrosourea. Free 7-ethylguanine but no free O6-ethylguanine is released in the medium. Incubation of methylated or ethylated DNA with chromatin proteins lead...

journal_title：Biochimie

authors： Renard A,Lemaitre M,Verly WG

更新日期：1982-08-01 00:00:00

abstract：:To examine the role of the C-terminal domain in the chaperone function of trigger factor (TF), a number of truncation mutants were constructed, namely: TF419, TF389, TF380, TF360, TF344, and TF251, in which the C-terminal 13, 43, 52, 72, 88 residues or the entire C-domain were deleted, respectively. Co-expression of m...

journal_title：Biochimie

authors： Zeng LL,Yu L,Li ZY,Perrett S,Zhou JM

更新日期：2006-06-01 00:00:00

abstract：:Pseudomonas cepacia 122 can grow on several lignin model compounds including the arylglycerol-beta-aryl ethers guaiacylglycerol-beta-coniferyl ether and guaiacylglycerol-beta-guaiacyl ether. Non-phenolic lignin model compounds are not degraded by this bacterium. The enzyme system catalyzing guaiacylglycerol-beta-guaia...

journal_title：Biochimie

authors： Odier E,Rolando C

更新日期：1985-02-01 00:00:00

abstract：:Microalgae can produce large quantities of triacylglycerols (TAGs) and other neutral lipids that are suitable for making biofuels and as feedstocks for green chemistry. However, TAGs accumulate under stress conditions that also stop growth, leading to a trade-off between biomass production and TAG yield. Recently, in ...

journal_title：Biochimie

authors： Prioretti L,Carriere F,Field B,Avilan L,Montané MH,Menand B,Gontero B

更新日期：2020-02-01 00:00:00

abstract：:The crystallographic structure of a novel trypsin inhibitor (CTI) from Copaifera langsdorffii is reported. The structure was solved by MIRAS procedure and refined to a crystallographic residual of 17.3% (R(free) = 20.3%) at 1.8 A resolution. Two isomorphous derivatives were obtained by quick cryo-soaking approach. CTI...

journal_title：Biochimie

authors： Krauchenco S,Nagem RA,da Silva JA,Marangoni S,Polikarpov I

更新日期：2004-03-01 00:00:00

abstract：:Phosphorus metabolites and intracellular pH have been examined in the slime mold Dictyostelium discoideum by non-destructive 31P-NMR measurements. In a spectrum from a suspension of aerobic amoebae, the major peaks are inorganic phosphate, nucleotide di- and triphosphates. In the corresponding perchloric acid extract,...

journal_title：Biochimie

authors： Satre M,Klein G,Martin JB

更新日期：1986-12-01 00:00:00

abstract：:Unlike most tonoplast ATPases, the vacuolar ATPase of Acer pseudoplatanus cells (Km = 0.4 mM) was strongly inhibited by vanadate (I50 = 10 microM). The inhibition was non-competitive. Chemicals usually added in the reaction mixture either increase (NH+4, K+) or decrease (Na+, EDTA) the ATPase inhibition. However, thes...

journal_title：Biochimie

authors： Montrichard F,Pugin A,Gaudemer Y

更新日期：1989-07-01 00:00:00

abstract：:RNA phosphodiester bonds can be cleaved by metal ions, of which Pb2+ is one of the most effective. It can cleave both generally and site-specifically, depending on the substrate and the conditions. In addition, metal ions are also known to cleave ester bonds between amino acid and the 3'-end of transfer RNA. Here we r...

journal_title：Biochimie

authors： Otzen DE,Barciszewski J,Clark BF

更新日期：1994-01-01 00:00:00

abstract：:Sphingosine is a natural sphingolipid found in membranes of all eukaryotic cells. In addition to its functions in cell signaling, sphingosine has broad-spectrum antimicrobial properties. Sphingosine's role as an antimicrobial is important in tissues such as the skin and respiratory epithelium. Reduction in the normal ...

journal_title：Biochimie

authors： Martin GE,Boudreau RM,Couch C,Becker KA,Edwards MJ,Caldwell CC,Gulbins E,Seitz A

更新日期：2017-10-01 00:00:00

abstract：:Cell sterol supply is subjected to tight negative feedback regulation through the SREBP pathway. Upon cholesterol depletion, SREBP transcription factors become activated by cleavage of a membrane bound precursor form, which stimulates the expression of the genes encoding proteins of the cholesterol synthesis pathway. ...

journal_title：Biochimie

authors： Robichon C,Dugail I

更新日期：2007-02-01 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：:Thraustochytrium is a marine protist producing a specific profile of nutritionally important fatty acids, including very long chain polyunsaturated fatty acids (VLCPUFAs) docosahexaenoic acid (DHA, 22:6n-3), even chain saturated fatty acids (SFAs) palmitic acid (16:0), and odd chain SFAs pentadecanoic acid (15:0). To ...

journal_title：Biochimie

authors： Zhao X,Qiu X

更新日期：2018-01-01 00:00:00