Solution NMR studies of the integral membrane proteins OmpX and OmpA from Escherichia coli.

abstract：:Cytosolic Ca2+ concentration and membrane potential were monitored in individual cultured endothelial cells mechanically stimulated with a micropipette attached to the stage of a microscope. Both dimpling and poking of endothelial cells resulted in Ca2+i transients (from 63 +/- 12 to 397 +/- 52 nM, characterized by a ...

journal_title：FEBS letters

authors： Goligorsky MS

更新日期：1988-11-21 00:00:00

abstract：:A spectroscopic study of the flavocytochrome b enzyme, cellobiose oxidase, employing optical, NMR, EPR and near infra-red MCD techniques, has identified the axial ligands of the b-type haem. These are a histidine and a methionine, and this ligation set is discussed in relation to the functional role of the haem group....

journal_title：FEBS letters

authors： Cox MC,Rogers MS,Cheesman M,Jones GD,Thomson AJ,Wilson MT,Moore GR

更新日期：1992-07-28 00:00:00

abstract：:On incubation of 7-day-old wheat seedlings in the presence of [3H]thymidine, the radioactivity incorporated into coleoptile DNA is found to be localized mainly (greater than 95%) in the fraction of heavy mitochondrial DNA (H-mt DNA; rho = 1.716 gm/cm3). Upon long (48-72 h) incubation of cut-off seedlings in water, the...

journal_title：FEBS letters

authors： Kirnos MD,Alexandrushkina NI,Zagorskaya GYa,Kireev II,Vanyushin BF

更新日期：1992-02-24 00:00:00

abstract：:The structure of the D158E mutant of caricain (previously known as papaya protease omega) in complex with E-64 has been determined at 2.0 A resolution (overall R factor 19.3%). The structure reveals that the substituted glutamate makes the same pattern of hydrogen bonds as the aspartate in native caricain. This was no...

journal_title：FEBS letters

authors： Katerelos NA,Taylor MA,Scott M,Goodenough PW,Pickersgill RW

更新日期：1996-08-19 00:00:00

abstract：:Disruption of the gene pgil of Saccharomyces cerevisiae, which codes for phosphoglucose isomerase, results in a dramatic increase in the amount of intracellular glycogen in early exponential cultures. The level of glucose 6-phosphate was much higher in mutant than in wild-type cells. Phosphorylase a activity and the s...

journal_title：FEBS letters

authors： Corominas J,Clotet J,Fernández-Bañares I,Boles E,Zimmermann FK,Guinovart JJ,Ariño J

更新日期：1992-09-28 00:00:00

abstract：:Fibroblast growth factor-2 (FGF-2) is mitogenic for the human breast cancer cell line MCF-7; here we investigate some of the signaling pathways subserving this activity. FGF-2 stimulation of MCF-7 cells resulted in a global increase of intracellular tyrosine phosphorylation of proteins, particularly FGF receptor subst...

journal_title：FEBS letters

authors： Vercoutter-Edouart A,Lemoine J,Smart CE,Nurcombe V,Boilly B,Peyrat J,Hondermarck H

更新日期：2000-08-04 00:00:00

abstract：:Previous studies of oxygen-derived free radical generation based on spin-trapping methods have shown a signal formed of six bands (sextet) using electron spin resonance spectrometry (ESR) of coronary effluents collected during post-ischaemic reperfusion of isolated hearts perfused with 5,5-dimethyl-1-pyrroline N-oxide...

journal_title：FEBS letters

authors： Boucher F,Pucheu S,Coudray C,Favier A,de Leiris J

更新日期：1992-05-18 00:00:00

abstract：:Association reactions of a recombinant CFTR-NBF-2 polypeptide fused to glutathione S-transferase with guanine nucleotides were monitored quantitatively by recording the fluorescence enhancement of excited trinitrophenol (TNP)-labelled GTP after binding to NBF-2. Binding of TNP-GTP to the recombinant NBF-2 polypeptide ...

journal_title：FEBS letters

authors： Randak C,Neth P,Auerswald EA,Assfalg-Machleidt I,Roscher AA,Hadorn HB,Machleidt W

更新日期：1996-11-25 00:00:00

abstract：:Structural integrity may be needed for the glutathione-linked peroxidase activity of human ceruloplasmin. Intact human ceruloplasmin has a potent peroxidase property to decompose H2O2 in the presence of reduced glutathione. However, the fragment of approximately 116000 Da produced by proteolytic degradation had less t...

journal_title：FEBS letters

authors： Kim IG,Park SY

更新日期：1998-10-23 00:00:00

abstract：:Studies of protein synthesis in the chloroplast compartment have revealed a unique combination of translational autoregulations and trans-regulations due to the delivery of a variety of nuclear factors that act post-transcriptionally. We show how these two characteristics concur to set the major step in the regulation...

journal_title：FEBS letters

authors： Choquet Y,Wollman FA

更新日期：2002-10-02 00:00:00

abstract：:A poly(A) tail functions in mRNA turnover and in facilitating translation as a ribonucleoprotein complex with poly(A) binding proteins (PABPs). However, factors that associate with the poly(A) tail other than PABPs have not been described. Using proteomics, we identified candidate proteins that interact to the 3' term...

journal_title：FEBS letters

authors： Aoki K,Adachi S,Homoto M,Kusano H,Koike K,Natsume T

更新日期：2013-07-11 00:00:00

abstract：:The results of the present investigation relate the effects of the nutritional state and administration of clofibric acid (CLA), a hypolipidaemic drug and peroxisomal proliferator, on phosphatidylethanolamine (PE) synthesis in rat liver and fatty acid metabolism. Fasting and CLA treatment of animals causes an increase...

journal_title：FEBS letters

authors： Lenart J,Komańska I,Pikuła S,Jasińska R

更新日期：1998-08-28 00:00:00

abstract：:The crystal structure of human immunodeficiency virus type 1 (HIV-1) protease mutant G48H with peptidic inhibitor U-89360E is described. Comparison with wild-type protease-inhibitor complex shows that mutation of flap residue 48 to histidine allows stabilizing van der Waals contacts between the side chains of His48 an...

journal_title：FEBS letters

authors： Hong L,Zhang XJ,Foundling S,Hartsuck JA,Tang J

更新日期：1997-12-22 00:00:00

abstract：:Daunorubicin induces apoptosis in myeloid leukemia cells by activation of neutral sphingomyelinase and ceramide generation occurring 4-10 min after daunorubicin addition. We show here that daunorubicin is able to increase the phosphoinositide 3-kinase activity and enhance intracellular phosphoinositide 3-kinase lipid ...

journal_title：FEBS letters

authors： Plo I,Bettaïeb A,Payrastre B,Mansat-De Mas V,Bordier C,Rousse A,Kowalski-Chauvel A,Laurent G,Lautier D

更新日期：1999-06-11 00:00:00

abstract：:Cyclic mononucleotides are messengers in plant stress responses. Here we show that hydrogen peroxide (H2O2) induces rapid net K(+)-efflux and Ca(2+)-influx in Arabidopsis roots. Pre-treatment with either 10μM cAMP or cGMP for 1 or 24h does significantly reduce net K(+)-leakage and Ca(2+)-influx, and in the case of the...

journal_title：FEBS letters

authors： Ordoñez NM,Marondedze C,Thomas L,Pasqualini S,Shabala L,Shabala S,Gehring C

更新日期：2014-03-18 00:00:00

abstract：:By co-expression of heme oxygenase and various bilin reductase(s) in a single operon in conjunction with apophytochrome using two compatible plasmids, we developed a system to produce phytochromes with various chromophores in Escherichia coli. Through the selection of different bilin reductases, apophytochromes were a...

journal_title：FEBS letters

authors： Mukougawa K,Kanamoto H,Kobayashi T,Yokota A,Kohchi T

更新日期：2006-02-20 00:00:00

abstract：:Ceramide-1-phosphate (CER-1-P) is emerging as a novel bioactive sphingolipid. It is formed by phosphorylation of ceramide catalyzed by ceramide kinase, and has been implicated in different cellular processes. Cer-1-P is mitogenic for fibroblasts, blocks apoptosis in macrophages, controls phagocytosis in neutrophils, a...

journal_title：FEBS letters

authors： Gómez-Muñoz A

更新日期：2004-03-26 00:00:00

abstract：:Several recombinant proteins in inclusion bodies expressed in Escherichia coli have been measured by Fourier transform infrared and solid-state nuclear magnetic resonance spectra to provide the secondary structural characteristics of the proteins from hyperthermophilic archaeon Pyrococcus horikoshii OT3 (hyperthermoph...

journal_title：FEBS letters

authors： Umetsu M,Tsumoto K,Ashish K,Nitta S,Tanaka Y,Adschiri T,Kumagai I

更新日期：2004-01-16 00:00:00

abstract：:In the present study we have examined the levels and phosphorylation state of the insulin receptor and insulin receptor substrate 1 (IRS-1) as well as the association between IRS-1 and phosphatidylinositol 3-kinase (PI 3-kinase) in the liver and muscle of rats treated with glucagon. There was a decrease in the insulin...

journal_title：FEBS letters

authors： Saad MJ,Hartmann LG,de Carvalho DS,Galoro CA,Brenelli SL,Carvalho CR

更新日期：1995-08-14 00:00:00

abstract：:Mutations of the cysteines (positions 668 and 714) were generated in the IF2 C domain of Bacillus stearothermophilus translation initiation factor IF2. The corresponding proteins were characterized functionally and structurally. Most (yet not all) amino acid replacements at both positions resulted in severe reduction ...

journal_title：FEBS letters

authors： Misselwitz R,Welfle K,Krafft C,Welfle H,Brandi L,Caserta E,Gualerzi CO

更新日期：1999-10-15 00:00:00

abstract：:Rat soleus muscle strips cultured for 24 h in medium 199 were well preserved in terms of electron microscopy; ATP and creatine phosphate concentrations; rates of glucose utilization, glycogen and protein synthesis, and effects of insulin thereon. Culture led to modest changes in fluid spaces and intracellular (K+); in...

journal_title：FEBS letters

authors： Stace PB,Marchington DR,Kerbey AL,Randle PJ

更新日期：1990-10-29 00:00:00

abstract：:The bacteriophytochrome Agp1 was reconstituted with a locked 5Zs-biliverdin in which the C(4)=C(5) and C(5)-C(6) bonds of the methine bridge between rings A and B are fixed in the Z and syn configuration/conformation, respectively. In Agp1-5Zs the photoconversion proceeds via the Lumi-R intermediate to Meta-R(A), but ...

journal_title：FEBS letters

authors： Seibeck S,Borucki B,Otto H,Inomata K,Khawn H,Kinoshita H,Michael N,Lamparter T,Heyn MP

更新日期：2007-11-27 00:00:00

abstract：:We have shown previously that the skeletal muscle ryanodine receptor mRNA of approximately 16,000 nucleotides codes 5,037 amino acid residues constituting the calcium release channel in skeletal muscle. In this study, RNA blot hybridization analysis shows that the brain contains an RNA species with an estimated size o...

journal_title：FEBS letters

authors： Takeshima H,Nishimura S,Nishi M,Ikeda M,Sugimoto T

更新日期：1993-05-10 00:00:00

abstract：:Plastoquinone-9 (PQ-9)-depleted PSII reaction center core complex, consisting of CP47/D1/D2/Cytb-559/I, was isolated from spinach PSII particles. PQ-9, lipids and several proteins were extracted from the original PSII particles and separated by several steps of chromatography to be reconstituted into the isolated comp...

journal_title：FEBS letters

authors： Kitamura K,Ozawa S,Shiina T,Toyoshima Y

更新日期：1994-10-31 00:00:00

abstract：:Ca(2+)-dependent protein kinases (CDPKs) play an essential role in plant Ca(2+)-mediated signal transduction. Twenty-nine CDPK genes have been identified in the rice genome through a complete search of genome and full-length cDNA databases. Eight of them were reported previously to be inducible by different stress sti...

journal_title：FEBS letters

authors： Wan B,Lin Y,Mou T

更新日期：2007-03-20 00:00:00

abstract：:Apoptotic proteases cleave and inactivate survival signaling molecules such as Akt/PKB, phospholipase C (PLC)-gamma1, and Bcl-2. We have found that treatment of A431 cells with tumor necrosis factor-alpha in the presence of cycloheximide resulted in the cleavage of epidermal growth factor receptor (EGFR) as well as th...

journal_title：FEBS letters

authors： Bae SS,Choi JH,Oh YS,Perry DK,Ryu SH,Suh PG

更新日期：2001-02-23 00:00:00

abstract：:Mitogen-activated protein kinase (MAPK) cascades play an important role in mediating stress responses in plants. In Arabidopsis, 20 MAPKs have been identified and classified into four major groups (A-D). Little is known about the role of group C MAPKs. We have studied the activation of Arabidopsis subgroup C1 MAPKs (A...

journal_title：FEBS letters

authors： Ortiz-Masia D,Perez-Amador MA,Carbonell J,Marcote MJ

更新日期：2007-05-01 00:00:00

abstract：:Ca2+-dependent chromatography of soluble cytosolic proteins on calmodulin-Sepharose gave a fraction that exhibited Ca2+- and calmodulin-dependent phosphorylation of several polypeptides, including 60, 56 and 45 kDa species. At 0.2 microM beef calmodulin the phosphorylation was optimal at 3 microM free Ca2+, and at 80 ...

journal_title：FEBS letters

authors： Londesborough J,Nuutinen M

更新日期：1987-07-13 00:00:00

abstract：:Stimulation of platelets results in the liberation of arachidonic acid (AA) which is further metabolized via the cyclooxygenase or lipoxygenase (LPG) pathway. We have examined the effect of inhibition of LPG on (i) the ADP-induced increase of cytoplasmic Ca2+ concentration and (ii) platelet aggregation. Lipoxygenase i...

journal_title：FEBS letters

authors： Borin ML,Pinelis VG,Ivanova MA,Kudinov YuV,Azizova OA,Markov CM,Khodorov BI

更新日期：1989-11-06 00:00:00

abstract：:A single copy of a glucocorticoid-responsive element (GRE) is sufficient in mediating the combinatorial response of a promoter to both glucocorticoids and insulin in HepG2 cells. This requires the presence of active glucocorticoid receptor (GR) since the response is significantly inhibited by the anti-glucocorticoid R...

journal_title：FEBS letters

authors： Georgakopoulos A,Tsawdaroglou N

更新日期：1996-03-04 00:00:00