Proton exchange kinetics in [d(ACGTATACGT)]2-echinomycin and [d(ACGTTAACGT)]2-echinomycin complexes.

abstract：:Intracellular Ca(2+) ([Ca(2+)](i)) changes were measured in cell bodies of cultured rat hippocampal neurones with the fluorescent indicator Fluo-3. In the absence of external Ca(2+), the cholinergic agonist carbachol (200 microM) and the sarcoendoplasmic reticulum Ca(2+) pump inhibitor thapsigargin (0.4 microM) both t...

journal_title：FEBS letters

authors： Bouron A

更新日期：2000-03-31 00:00:00

abstract：:Tumor necrosis factor receptor associated factor 6 (TRAF6) is an important signaling molecule involved in a diverse array of physiological processes. It has been proposed that TRAF6, a RING finger-containing protein, acts as a ubiquitin ligase (E3) and a target for Lys-63 linked polyubiquitination mediated by Ubc13-Ue...

journal_title：FEBS letters

authors： Wooff J,Pastushok L,Hanna M,Fu Y,Xiao W

更新日期：2004-05-21 00:00:00

abstract：:The bchM gene of Rhodobacter sphaeroides has been sequenced and then overexpressed in E. coli producing a protein of M(r) approximately. 27,500. Cell-free extracts of the transformed E. coli strain are able to methylate added Mg protoporphyrin, resulting in the formation of Mg protoporphyrin monomethyl ester. The iden...

journal_title：FEBS letters

authors： Gibson LC,Hunter CN

更新日期：1994-09-26 00:00:00

abstract：:Polymyxin B (PXB), a cyclic peptide antibiotic, in concentrations 0.1-3.0 mg/ml (0.08-4.0 mmol/l), inhibited the K+ efflux induced by opening of the Ca2+-activated K+ channel (the Gárdos effect) in intact human red blood cells. The inhibition was observed when the Gárdos effect was elicited by Ca2+ in the presence of ...

journal_title：FEBS letters

authors： Varecka L,Peterajová E,Pogády J

更新日期：1987-12-10 00:00:00

abstract：:Despite significant increases in circulating concentrations of lipid fuels (triacylglycerol, non-esterified fatty acids (NEFA) and ketone bodies) in late-pregnant rats sampled in the fed (absorptive) state, cardiac and skeletal muscle active pyruvate dehydrogenase (PDHa) activities remained comparable with those obser...

journal_title：FEBS letters

authors： Sugden MC,Holness MJ

更新日期：1993-04-26 00:00:00

abstract：:Cytochrome oxidase o has been isolated from the obligately aerobic, methylotrophic bacterium Methylophilus methylotrophus in the form of a cytochrome cL-o complex. The latter is comprised of cytochrome cL (Mr 21 000) and cytochrome o (Mr 29 000) in a 1-2:1 ratio, possibly in association with one or more minor polypept...

journal_title：FEBS letters

authors： Carver MA,Jones CW

更新日期：1983-05-08 00:00:00

abstract：:Mg2+ -dependent catechol-O-methyltransferases occur in animals as well as in bacteria, fungi and plants, often with a pronounced selectivity towards one of the substrate's hydroxyl groups. Here, we show that the bacterial MxSafC exhibits excellent regioselectivity for para as well as for meta methylation, depending on...

journal_title：FEBS letters

authors： Siegrist J,Netzer J,Mordhorst S,Karst L,Gerhardt S,Einsle O,Richter M,Andexer JN

更新日期：2017-01-01 00:00:00

abstract：:Mitogen-activated protein (MAP) kinases p42mapk and p44mapk are activated by dual tyrosine and threonine phosphorylation in vivo. Both MAPKs are phosphorylated and activated in vitro by an activator recently identified as a protein-tyrosine/threonine kinase. We have isolated a putative cDNA for a MAP kinase kinase (MA...

journal_title：FEBS letters

authors： Haystead CM,Wu J,Gregory P,Sturgill TW,Haystead TA

更新日期：1993-02-08 00:00:00

abstract：:Chicken muscular dystrophy with abnormal muscle (AM) has been studied for more than 50 years, but the gene responsible for it remains unclear. Our previous studies narrowed down the AM candidate region to approximately 1Mbp of chicken chromosome 2q containing seven genes. In this study, we performed sequence compariso...

journal_title：FEBS letters

authors： Matsumoto H,Maruse H,Inaba Y,Yoshizawa K,Sasazaki S,Fujiwara A,Nishibori M,Nakamura A,Takeda S,Ichihara N,Kikuchi T,Mukai F,Mannen H

更新日期：2008-06-25 00:00:00

abstract：:The polyketide synthase associated with the biosynthesis of enediyne-containing calicheamicin contains a putative phosphopantetheinyl transferase (PPTase) domain. By cloning and expressing the C-terminal region of the polyketide synthase and in vitro phosphopantetheinylation assay, we found that the PPTase domain exhi...

journal_title：FEBS letters

authors： Murugan E,Liang ZX

更新日期：2008-04-02 00:00:00

abstract：:Tau exon 10 (E10) splicing is a crucial event in its developmental change of tau isoform and tauopathy. To investigate the splicing mechanism, we isolated and compared mouse tau genomic sequence with human sequence. We identified a new element in mouse intron 10 (I10) to suppress E10 splicing, which was located just a...

journal_title：FEBS letters

authors： Yamashita T,Tomiyama T,Li Q,Numata H,Mori H

更新日期：2005-01-03 00:00:00

abstract：:Protein glycosylation, which is a key post-translational event, is catalysed by the glycosyltransferase family of enzymes. There is an increasing body of evidence to suggest that these enzymes may themselves be glycosylated, possibly as an autocatalytic event. Using a novel in vitro system, we have investigated the ro...

journal_title：FEBS letters

authors： Breen KC

更新日期：2002-04-24 00:00:00

abstract：:In human pancreatic islets an increase in the glucose concentration from 3 to 20 mM raised the free cytoplasmic Ca2+ concentration [( Ca2+]i), an effect being reversible upon withdrawal of the sugar. Depolarization with a high concentration of K+ or the sulphonylurea tolbutamide also raised [Ca2+]i. Addition of extrac...

journal_title：FEBS letters

authors： Kindmark H,Köhler M,Nilsson T,Arkhammar P,Wiechel KL,Rorsman P,Efendić S,Berggren PO

更新日期：1991-10-21 00:00:00

abstract：:Various antihyperlipemic peroxisome proliferators are known to be carcinogenic in rodents but not in human, other primates and guinea pig, which species lost their ability to synthesize ascorbate due to mutations in the gulonolactone oxidase gene. Ascorbate synthesis is accompanied by H2O2 production, consequently its...

journal_title：FEBS letters

authors： Braun L,Mile V,Schaff Z,Csala M,Kardon T,Mandl J,Bánhegyi G

更新日期：1999-09-24 00:00:00

abstract：:Programmed death-ligand 1 (PD-L1) is a co-inhibitory molecule expressed on tumor cells. Immune checkpoint inhibitors focusing on the PD-L1 mechanism are now being studied for the treatment of various cancer types. However, the regulatory mechanism of PD-L1 is yet to be fully clarified, and a high-throughput system for...

journal_title：FEBS letters

authors： Uchida Y,Matsushima T,Kurimoto R,Chiba T,Inutani Y,Asahara H

更新日期：2021-01-09 00:00:00

abstract：:Bisdioxopiperazine anti-cancer agents are catalytic inhibitors of topoisomerase II which by unknown means lock the enzyme in a closed clamp form and inhibit its ATPase activity. In order to demarcate a putative pharmacophore, we here describe a novel Tyr165Ser mutation in the enzyme's Walker A ATP binding site leading...

journal_title：FEBS letters

authors： Wessel I,Jensen LH,Renodon-Corniere A,Sorensen TK,Nitiss JL,Jensen PB,Sehested M

更新日期：2002-06-05 00:00:00

abstract：:The β-xylosidase B from Bifidobacterium adolescentis ATCC15703 belongs to the newly characterized family 120 of glycoside hydrolases. In order to investigate its catalytic mechanism, an extensive kinetic study of the wild-type enzyme and mutants targeting the three highly conserved residues Asp(393), Glu(416) and Glu(...

journal_title：FEBS letters

authors： Cecchini DA,Fauré R,Laville E,Potocki-Veronese G

更新日期：2015-10-07 00:00:00

abstract：:The DNA binding characteristics of a mono-, di- and trimeric derivative of 9-aminoacridine were studied. The length of the linking carboxamidoalkyl chains was selected to allow bis- or tris-intercalation according to the excluded-site model. Measurements of DNA unwinding angle using closed circular DNA showed that the...

journal_title：FEBS letters

authors： Gaugain B,Markovits J,Le Pecq JB,Roques BP

更新日期：1984-04-24 00:00:00

abstract：:The effect of artificial model membranes on the complement system was investigated. Incubation of the model membranes with human serum resulted in consumption of complement haemolytic activity when phosphatidylserine-containing vesicles were used. The activation of the complement system appeared to proceed through the...

journal_title：FEBS letters

authors： Comis A,Easterbrook-Smith SB

更新日期：1986-03-03 00:00:00

abstract：:The in vitro methylation of the +6, +24, and -215 located 5'-CCGG-3' sequences in the late E2A promoter of adenovirus type 2 (Ad2) DNA abrogates promoter function. 5-Methyldeoxycytidine (5-mC) at positions +6 and +24 in both or either of the two DNA complements in the late E2A promoter abolishes the formation of a hig...

journal_title：FEBS letters

authors： Hermann R,Doerfler W

更新日期：1991-04-09 00:00:00

abstract：:A heat-stable activator for ADP-ribosylation factor (ARF)-dependent phospholipase D (PLD) was purified to near homogeneity from rat kidney cytosol by a sequential column chromatography. The purified activator has a molecular mass of 23 kDa on SDS-PAGE. Using a partially purified ARF-dependent PLD from rat kidney, the ...

journal_title：FEBS letters

authors： Akisue T,Jinnai H,Hitomi T,Miwa N,Yoshida K,Nakamura S

更新日期：1998-01-23 00:00:00

abstract：:Retinal dehydrogenase (RALDH) catalyzes the oxidation of retinal to all-trans and 9-cis retinoic acid, which function as ligands controlling RAR and RXR nuclear receptor-signaling pathways. We have recently shown the expression of RALDH transcript in the stomach and small intestine by reverse transcription polymerase ...

journal_title：FEBS letters

authors： Bhat PV

更新日期：1998-04-17 00:00:00

abstract：:Galanin mediates diverse physiological functions in digestive, endocrine, and central nervous systems through G-protein-coupled receptors. Two galanin receptors have been cloned but the gene structures are unknown. We report genomic and cDNA cloning of the mouse GalR1 galanin receptor and demonstrate that the coding s...

journal_title：FEBS letters

authors： Wang S,He C,Maguire MT,Clemmons AL,Burrier RE,Guzzi MF,Strader CD,Parker EM,Bayne ML

更新日期：1997-07-14 00:00:00

abstract：:We have studied the inhibition by a phosphorothioate oligodeoxynucleotide (17PScap) of cDNA synthesis performed by either avian or murine reverse transcriptase. Three different mechanisms of inhibition were identified: at low concentrations (< 100 nM), the cleavage of the RNA template by the retroviral RNase H at the ...

journal_title：FEBS letters

authors： Boiziau C,Moreau S,Toulmé JJ

更新日期：1994-03-07 00:00:00

abstract：:Caveolin is a protein present in membrane specializations termed caveolae where it may play a structural role. Previous studies on the cDNA sequence of chicken caveolin demonstrated that it is an integral membrane protein without significant homology to any known protein. The cDNA sequence of human lung caveolin is pr...

journal_title：FEBS letters

authors： Glenney JR Jr

更新日期：1992-12-07 00:00:00

abstract：:Anti-cytokine autoantibodies in healthy individuals have been widely reported but the occurrence is variable and inconstant. We hypothesized that cytokine-binding in vivo may explain their variable and infrequent detection. Therefore, we focused on the detection of the cytokine-autoantibody complexes and found that an...

journal_title：FEBS letters

authors： Watanabe M,Uchida K,Nakagaki K,Kanazawa H,Trapnell BC,Hoshino Y,Kagamu H,Yoshizawa H,Keicho N,Goto H,Nakata K

更新日期：2007-05-15 00:00:00

abstract：:The Type I cGMP-dependent protein kinase catalytic domain (residues 336-671 from the I alpha isoform) has been expressed as a cGMP independent kinase in a baculovirus system. Using peptide substrates, the protein retains similar substrate specificity as the native holoenzyme. The recombinant catalytic domain catalyzes...

journal_title：FEBS letters

authors： Boerth NJ,Lincoln TM

更新日期：1994-04-11 00:00:00

abstract：:Inducible nitric oxide (NO) synthase (iNOS) appears to be a marker of tumor progression in colon carcinogenesis. Here we investigated effects of NO on selected chemokines that differentially regulate angiogenesis, namely pro-angiogenic interleukin (IL)-8 as well as tumor-suppressive interferon-inducible protein-10 (IP...

journal_title：FEBS letters

authors： Hellmuth M,Paulukat J,Ninic R,Pfeilschifter J,Mühl H

更新日期：2004-04-09 00:00:00

abstract：:The RhoGTPase Rac1 is activated in a polarised fashion and controls cell motility. We previously showed that Rac1 binds the PP2A inhibitor SET and recruits nuclear SET to the cytosol. We show that a SET mutant, lacking a nuclear localization signal, SET(ΔNLS), promotes cell spreading and motility. This was accompanied...

journal_title：FEBS letters

authors： Lam BD,Anthony EC,Hordijk PL

更新日期：2013-01-16 00:00:00

abstract：:We searched for the previously defined uncoupling protein (UCP) signatures [Jezek, P. and Urbánková, E. (2000) IUBMB Life 49, 63-70] in genomes of Drosophila melanogaster, Caenorhabditis elegans, Dictyostelium discoideum, and Arabidopsis thaliana. We identified four UCPs in Drosophila and one in Caenorhabditis or Dict...

journal_title：FEBS letters

authors： Hanák P,Jezek P

更新日期：2001-04-27 00:00:00