Comparative characterization of Aedes 3-hydroxykynurenine transaminase/alanine glyoxylate transaminase and Drosophila serine pyruvate aminotransferase.

abstract：:Hepatitis C virus (HCV) often establishes a persistent infection that leads to chronic liver diseases. The viral core protein modulates various cellular activities involved in this process. We found two mutations, K23E and V31A, in the core gene of the transfected HCV JFH-1 genome, which had been replicated for a prol...

journal_title：FEBS letters

authors： Kang JI,Kwon YC,Ahn BY

更新日期：2012-05-07 00:00:00

abstract：:Phospholipase A2 has been purified from the venom of Horned viper (Cerastes cerastes) by gel permeation chromatography followed by reverse-phase HPLC. The primary structure was established by sequence analysis of the intact protein and its enzymic peptides. The structure has 120 residues, properties like other group I...

journal_title：FEBS letters

authors： Siddiqi AR,Shafqat J,Zaidi ZH,Jörnvall H

更新日期：1991-01-14 00:00:00

abstract：:The 4-chlorobenzoyl-CoA dehalogenase catalyzes the hydrolytic dechlorination of 4-chlorobenzoyl-CoA via a two-step mechanism, namely nucleophilic aromatic substitution and ester hydrolysis. The mutation of an active-site Histidine residue has been shown to reduce the catalytic activity in both the substitution and sub...

journal_title：FEBS letters

authors： Xu D,Guo H

更新日期：2005-08-15 00:00:00

abstract：:Three mutant polypeptides of the type I 37-residue winter flounder 'antifreeze' protein have been synthesized. All four threonine residues in the native peptide were been mutated to serine, valine and glycine respectively and two additional salt bridges were incorporated into the sequences in order to improve aqueous ...

journal_title：FEBS letters

authors： Haymet AD,Ward LG,Harding MM,Knight CA

更新日期：1998-07-03 00:00:00

abstract：:The Bacillus thuringiensis Cry toxin causes swelling and necrosis in insect cells, but the route(s) and significance of the water influx involved in its cytotoxicity are unclear. Here, we assessed the role of aquaporins (AQPs), known as water channels, in Cry toxin intoxication. An AQP inhibitor did not interfere with...

journal_title：FEBS letters

authors： Endo H,Azuma M,Adegawa S,Kikuta S,Sato R

更新日期：2017-01-01 00:00:00

abstract：:One of the most intriguing plant defense reactions against herbivores is the emission of volatiles as potentially attractive signals for the natural enemies of the attacking species. Like many other low and high molecular weight chemical defenses, volatile production is under the control of the octadecanoid signalling...

journal_title：FEBS letters

authors： Krumm T,Bandemer K,Boland W

更新日期：1995-12-27 00:00:00

abstract：:Constitutively secreted proteins have traditionally been believed to be excluded from the regulated secretory pathway. In this work we show that kappa light chain and Fc fragment, two markers of the constitutive pathway, are present in the regulated pathway in AtT-20 cells. They colocalize with the endogenous hormone ...

journal_title：FEBS letters

authors： Castle AM,Huang AY,Castle JD

更新日期：1998-11-20 00:00:00

abstract：:The primary structure of opsin of the crayfish Procambarus clarkii has been deduced from the cDNA sequence. The opsin is composed of 376 amino acid residues including all the conservative residues characteristic of other members of the rhodopsin family. Comparison of sequences of all known opsins reveals that the majo...

journal_title：FEBS letters

authors： Hariyama T,Ozaki K,Tokunaga F,Tsukahara Y

更新日期：1993-01-11 00:00:00

abstract：:Stomach infection with pathogenic strains of Helicobacter pylori causes in some patients severe gastroduodenal diseases. These bacteria produce various virulence factors and, here, we review the recent acquisition on the biochemical mode of action of three major factors. We discuss the role of urease both as buffer of...

journal_title：FEBS letters

authors： Montecucco C,Papini E,de Bernard M,Zoratti M

更新日期：1999-06-04 00:00:00

abstract：:Uptake of taurine in human placental brush-border membrane vesicles was greatly stimulated in the presence of an inwardly-directed Na+ + Cl- -gradient and uphill transport of taurine could be demonstrated under these conditions. Na+ as well as Cl- were obligatory for this uptake and both ion gradients could energize t...

journal_title：FEBS letters

authors： Miyamoto Y,Balkovetz DF,Leibach FH,Mahesh VB,Ganapathy V

更新日期：1988-04-11 00:00:00

abstract：:Prodigiosin 25-C inhibited the accumulation of 3-(2,4-dinitroanilino)-3'-amino-N-methyldipropylamine and acridine orange in the acidic compartments of baby hamster kidney cells with little perturbation of cellular ATP levels. In rat liver lysosomes, prodigiosin 25-C inhibited the proton pump activity with an IC50 of a...

journal_title：FEBS letters

authors： Kataoka T,Muroi M,Ohkuma S,Waritani T,Magae J,Takatsuki A,Kondo S,Yamasaki M,Nagai K

更新日期：1995-02-06 00:00:00

abstract：:The effects of protein disulfide isomerase (PDI) on the four structured des species that accumulate in the rate-determining steps of ribonuclease A folding were investigated at pH 8.0 and 15 degrees C. The results indicate that PDI catalyzes the conversion of the kinetically trapped intermediates, des-[26-84] and des-...

journal_title：FEBS letters

authors： Shin HC,Song MC,Scheraga HA

更新日期：2002-06-19 00:00:00

abstract：:Using reverse transcription followed by PCR amplification (RT-PCR), we have identified multiple messenger RNAs encoding for the neuronal pore-forming Ca(2+) channel subunits alpha(1A) (P/Q channel), alpha(1B) (N channel), alpha(1D) (neuronal/endocrine L channel), alpha(1E) (R channel), alpha(1G-H) (T channel) and alph...

journal_title：FEBS letters

authors： García-Palomero E,Cuchillo-Ibáñez I,García AG,Renart J,Albillos A,Montiel C

更新日期：2000-09-22 00:00:00

abstract：:We have studied the phosphorylation/dephosphorylation of several nuclear proteins in isolated nuclei from etiolated Avena seedlings as a function of red/far-red light. The effect of stimulatory (ADP-ribosylation by cholera toxin) or inhibitory (GDP beta S) conditions for GTP-binding proteins was also studied. Red or f...

journal_title：FEBS letters

authors： Romero LC,Biswal B,Song PS

更新日期：1991-05-06 00:00:00

abstract：:The Alanine Serine Cysteine Transporter 2 (ASCT2) is involved in balancing the intracellular amino acid pool. This function is allowed by the antiport mechanism and the asymmetric specificity towards different neutral amino acids, distinctive of this transporter. In the present work, the interaction of the putative su...

journal_title：FEBS letters

authors： Scalise M,Pochini L,Pingitore P,Hedfalk K,Indiveri C

更新日期：2015-11-30 00:00:00

abstract：:A metallothionein cDNA was generated from pea (Pisum sativum L.) roots, amplified by PCR and inserted into a plasmid for expression in E. coli. Purification of the resultant product generated 3 pools of cadmium-containing material after DEAE-cellulose chromatography. The amino acid composition of each was in excellent...

journal_title：FEBS letters

authors： Kille P,Winge DR,Harwood JL,Kay J

更新日期：1991-12-16 00:00:00

abstract：:Murine erythropoietin-responsive Rauscher Red 5-1.5 cells were used to determine the contribution of glycosylation to the size and function of the erythropoietin receptor. The half life of the receptors was determined to be 4 h. The number of receptors was not significantly decreased in cells treated for 48 h with inh...

journal_title：FEBS letters

authors： Mayeux P,Casadevall N,Muller O,Lacombe C

更新日期：1990-08-20 00:00:00

abstract：:Human hepatocellular carcinoma (HCC) is one of the most common tumors worldwide, in which the genetic mechanisms of oncogenesis are still unclear. To investigate whether the genomic DNA copy number alterations may contribute to primary HCC, the cDNA microarray-based comparative genomic hybridization (CGH) analysis was...

journal_title：FEBS letters

authors： Huang J,Sheng HH,Shen T,Hu YJ,Xiao HS,Zhang Q,Zhang QH,Han ZG

更新日期：2006-06-26 00:00:00

abstract：:Two lipophilic derivatives of caffeic acid which inhibit lipoxygenase, caffeic acid phenethyl ester (CAPE) and N,N'-dicyclohexyl-O-(3,4-dihydroxycinnamoyl)-isourea (DCHCU), reduced the proliferative response of murine splenocytes to concanavalin A in vitro. Both CAPE and DCHCU induced apoptosis in murine thymocyte cul...

journal_title：FEBS letters

authors： Mirzoeva OK,Yaqoob P,Knox KA,Calder PC

更新日期：1996-11-04 00:00:00

abstract：:IRF-8/ICSBP and IRF-1 are IRF family members whose expression is induced in response to IFN-gamma in macrophages. IL-12 is a cytokine produced in macrophages that plays a critical role in host defense. IFN-gamma and bacterial lipopolysaccharide (LPS) induce IL-12p40 transcription, which is necessary for the production...

journal_title：FEBS letters

authors： Masumi A,Tamaoki S,Wang IM,Ozato K,Komuro K

更新日期：2002-11-06 00:00:00

abstract：:Analysis of the fate of the p185HER2 oncoprotein following activation by heregulin beta1 revealed the induction of the tyrosine-phosphorylation, down-modulation, and polyubiquitination of p185HER2. Receptor ubiquitination was suppressed in cells treated with heregulin beta1 in the presence of sodium azide, an inhibito...

journal_title：FEBS letters

authors： Magnifico A,Tagliabue E,Ardini E,Casalini P,Colnaghi MI,Ménard S

更新日期：1998-01-30 00:00:00

abstract：:The effects of various local anaesthetics (LAs) on ryanodine binding of the sheep brain ryanodine receptor were tested. Tetracaine and dibucaine inhibit the binding with half-maximal inhibition (CI50) of 0.12 mM and 0.7 mM, respectively. Lidocaine and its analog QX-314, on the other hand, stimulate the binding up to 3...

journal_title：FEBS letters

authors： Martin C,Ashley R,Shoshan-Barmatz V

更新日期：1993-08-09 00:00:00

abstract：:Temperature-induced order/disorder transition profiles were obtained from the membranes of intact Gram-negative bacterial cells by FT-IR analysis of the frequency shifts of the acyl chain methylene symmetric stretching band as a monitor. Cells grown at different temperatures yielded distinct transition profiles. At th...

journal_title：FEBS letters

authors： Schultz C,Naumann D

更新日期：1991-12-02 00:00:00

abstract：:Human natural killer (NK) cells possess an arsenal of receptors programmed to regulate the NK cell functions, once encountering a target cell. In general, the activating receptors mediate cytotoxicity when engaged by their tumor specific, stress induced, virally encoded, or rarely, self ligands. Whereas, the inhibitor...

journal_title：FEBS letters

authors： Stanietsky N,Mandelboim O

更新日期：2010-12-15 00:00:00

abstract：:Interactions between Trypanosoma cruzi and the extracellular matrix play an important role in cellular invasion. Here we show that T. cruzi increases the levels of thrombospondin-1 (TSP-1) expression in host cells during early infection. Stable RNA interference of host cell TSP-1 knocks down the levels of TSP-1 transc...

journal_title：FEBS letters

authors： Simmons KJ,Nde PN,Kleshchenko YY,Lima MF,Villalta F

更新日期：2006-04-17 00:00:00

abstract：:Biological functions of transcribed spacer regions in eucaryotic pre-rRNAs remain elusive so far. Utilization of the comparative approach to analyse their secondary structure has been impeded by the extensive sequence divergence observed among most of the specimens available to date. However, we have taken advantage o...

journal_title：FEBS letters

authors： Michot B,Despres L,Bonhomme F,Bachellerie JP

更新日期：1993-02-01 00:00:00

abstract：:The prokaryotic tubulin homologue FtsZ polymerizes in vitro in a nucleotide dependent fashion. Here we report that replacement of the strictly conserved Asp212 residue of Escherichia coli FtsZ by a Cys or Asn, but not by a Glu residue results in FtsZ that polymerizes with divalent cations in the absence of added GTP. ...

journal_title：FEBS letters

authors： Scheffers DJ,de Wit JG,den Blaauwen T,Driessen AJ

更新日期：2001-04-06 00:00:00

abstract：:Rabbits ingesting 4-fluorophenylalanine are known to incorporate small amounts of this fluorinated amino acid into their proteins. Carbonic anhydrase I isolated from the erythrocytes of animals so maintained exhibits a well-resolved fluorine NMR signal for each phenylalanine in the sequence. The chemical shifts of mos...

journal_title：FEBS letters

authors： Gamcsik MP,Gerig JT

更新日期：1986-02-03 00:00:00

abstract：:Membrane proteins are usually solubilized in polar solvents by incorporation into micelles. Even for small membrane proteins these mixed micelles have rather large molecular masses, typically beyond 50000 Da. The NMR technique TROSY (transverse relaxation-optimized spectroscopy) has been developed for studies of struc...

journal_title：FEBS letters

authors： Fernández C,Hilty C,Bonjour S,Adeishvili K,Pervushin K,Wüthrich K

更新日期：2001-08-31 00:00:00

abstract：:The mammalian gonadotropin-releasing hormone (GnRH-I), which regulates reproduction, was the first isoform of GnRH that was identified in mammals. Recently, we and others have demonstrated the existence of a second isoform of GnRH in the brain of mammals. The presence of a third isoform of GnRH, GnRH-III, in the brain...

journal_title：FEBS letters

authors： Yahalom D,Chen A,Ben-Aroya N,Rahimipour S,Kaganovsky E,Okon E,Fridkin M,Koch Y

更新日期：1999-12-17 00:00:00