Transient high-affinity binding of agonists to alpha 1-adrenergic receptors of intact liver cells.

abstract：:We compared oxidative DNA damage in strictly anaerobic Prevotella melaninogenica, aerotolerant anaerobic Bacteroides fragilis, and facultative anaerobic Salmonella typhimurium after exposure to O2 or H2O2. Using HPLC with electrochemical detection, we measured 8-hydroxydeoxyguanosine (8OHdG) as a damage marker. O2 ind...

journal_title：FEBS letters

authors： Takeuchi T,Nakaya Y,Kato N,Watanabe K,Morimoto K

更新日期：1999-05-07 00:00:00

abstract：:The involvement of Ca(2+) in the response to high Mn(2+), Co(2+), Ni(2+), Cu(2+), Zn(2+), Cd(2+), and Hg(2+) was investigated in Saccharomyces cerevisiae. The yeast cells responded through a sharp increase in cytosolic Ca(2+) when exposed to Cd(2+), and to a lesser extent to Cu(2+), but not to Mn(2+), Co(2+), Ni(2+), ...

journal_title：FEBS letters

authors： Ruta LL,Popa VC,Nicolau I,Danet AF,Iordache V,Neagoe AD,Farcasanu IC

更新日期：2014-08-25 00:00:00

abstract：:Antiparaoxon immune sera were employed in a new immunoassay based on competition between acetylcholinesterase and antibodies for the binding of paraoxon. Unlike radioimmunoassay, the new assay described herein can be extended to predict the feasibility of antibodies to confer in vivo protection of acetylcholinesterase...

journal_title：FEBS letters

authors： Heldman E,Balan A,Horowitz O,Ben-Zion S,Torten M

更新日期：1985-01-28 00:00:00

abstract：:The WWE domain is often identified in proteins associated with ubiquitination or poly-ADP-ribosylation. Structural information about WWE domains has been obtained for the ubiquitination-related proteins, such as Deltex and RNF146, but not yet for the poly-ADP-ribose polymerases (PARPs). Here we determined the solution...

journal_title：FEBS letters

authors： He F,Tsuda K,Takahashi M,Kuwasako K,Terada T,Shirouzu M,Watanabe S,Kigawa T,Kobayashi N,Güntert P,Yokoyama S,Muto Y

更新日期：2012-11-02 00:00:00

abstract：:Treatment of neonatal rat islets of Langerhans with combined cytokines (interleukin-1beta 10(-10) M, tumour necrosis factor-alpha 10(-10) M, interferon-gamma 5 U/ml) led to extensive cell death, which was potentiated by Fas activation with the anti-Fas cytolytic antibody JO2. Pre-treatment with insulin (25 ng/ml) or i...

journal_title：FEBS letters

authors： Harrison M,Dunger AM,Berg S,Mabley J,John N,Green MH,Green IC

更新日期：1998-09-18 00:00:00

abstract：:Melanogenesis is an important biochemical process for the production of skin pigments which protect many animals from the damage of solar radiation. The abnormalities in melanogenesis are associated with albinism, vitiligo, as well as malignant melanoma in humans. In the lower forms of animals viz., insects, the exosk...

journal_title：FEBS letters

authors： Sugumaran M

更新日期：1991-12-16 00:00:00

abstract：:Changes in troponin C (TnC) conformation upon Ca(2+) binding forms the basis for regulatory and structural functions of TnC molecules. In the present study, Ca(2+)-induced conformational changes in TnC were observed by mechanical measurements. TnC films were prepared by drying or electrospraying TnC solutions, cross-l...

journal_title：FEBS letters

authors： Bukatina AE,Morozov VN,Gusev NB,Sieck GC

更新日期：2002-07-31 00:00:00

abstract：:The hypothesis that calpain subunits dissociate in the presence of Ca2+ has been tested by methods which avoid interference by Ca2+-induced aggregation and large subunit autolysis. Inactive Cys105Ser-m-calpain, bound either to Ni-NTA-agarose or to immobilized casein, after incubation with Ca2+, could be recovered in h...

journal_title：FEBS letters

authors： Dutt P,Arthur JS,Croall DE,Elce JS

更新日期：1998-10-09 00:00:00

abstract：:Rhodamine 6G (3 microM) effectively inhibited delta pH-driven ATP synthesis in Methanobacterium thermoautotrophicum while delta pNa-driven ATP synthesis was not affected by it. Rhodamine 6G inhibited Mg(2+)-stimulated ATPase activity of membrane vesicles prepared from these cells but the ATPase catalytic sector detach...

journal_title：FEBS letters

authors： Smigán P,Majerník A,Greksák M

更新日期：1994-06-27 00:00:00

abstract：:Proteins implicated as intracellular chloride channels include the intracellular ClC proteins, the bestrophins, the cystic fibrosis transmembrane conductance regulator, the CLICs, and the recently described Golgi pH regulator. This paper examines current hypotheses regarding roles of intracellular chloride channels an...

journal_title：FEBS letters

authors： Edwards JC,Kahl CR

更新日期：2010-05-17 00:00:00

abstract：:Synaptotagmin I, the calcium sensor for neurotransmission, is palmitoylated. We have identified the palmitoylation sites as five cysteine residues located between the transmembrane and cytoplasmic regions. In contrast to wild-type synaptotagmin, the non-acylated mutant is not converted to the endoglycosidase-H-resista...

journal_title：FEBS letters

authors： Heindel U,Schmidt MF,Veit M

更新日期：2003-06-05 00:00:00

abstract：:Microdissected, beta-cell-rich pancreatic islets from ob/ob mice were used in studies of 86Rb+ transport. D-Glucose (20 mM) induced a biphasic reduction in 86Rb+ efflux. The reduction stabilized within 10 min at 34% of the efflux rate at zero glucose. The initial 86Rb+ uptake (5 min) was dose-dependently reduced by ou...

journal_title：FEBS letters

authors： Lindström P,Norlund L,Sehlin J

更新日期：1986-05-05 00:00:00

abstract：:We have studied the nuclear magnetic resonance solution secondary structure of the N-terminal region in human erythroid alpha-spectrin using a recombinant model peptide of alpha-spectrin consisting of residues 1-156. Pulsed field gradient diffusion coefficient measurements show that the model peptide exists as a monom...

journal_title：FEBS letters

authors： Park S,Johnson ME,Fung LW

更新日期：2000-11-17 00:00:00

abstract：:Catenins are peripheral cytoplasmic proteins originally identified in association with the mouse epithelial cell adhesion molecule E-cadherin. Molecular cloning and primary structure analysis demonstrated that alpha-catenin is homologous to vinculin and the beta-catenin is homologous to human plakoglobin and the Droso...

journal_title：FEBS letters

authors： Butz S,Kemler R

更新日期：1994-11-28 00:00:00

abstract：:In a previous investigation of the rDNA region in Tetrahymena pyriformis mitochondrial DNA, we identified a putative tRNA(Met) gene [Heinonen et al. (1987) J. Biol. Chem. 262, 2879-2887]. On the basis of Northern hybridization analyses, we suggested that this gene is expressed, even though the resulting tRNA would be ...

journal_title：FEBS letters

authors： Schnare MN,Greenwood SJ,Gray MW

更新日期：1995-03-27 00:00:00

abstract：:All ligands of the epidermal growth factor receptor (EGFR), which has important roles in development and disease, are made as transmembrane precursors. Proteolytic processing by ADAMs (a disintegrin and metalloprotease) regulates the bioavailability of several EGFR-ligands, yet little is known about the enzyme respons...

journal_title：FEBS letters

authors： Sahin U,Blobel CP

更新日期：2007-01-09 00:00:00

abstract：:A membrane-bound phospholipase C-like hydrolase present in lysates of bloodstream forms of Trypanosoma brucei rapidly converts the membrane form of the variant surface protein to the soluble form and 1,2-dimyristoylglycerol [(1985) M.A.J. Ferguson et al. J. Biol. Chem., 260, 4963-4968]. The hydrolase is inhibited by p...

journal_title：FEBS letters

authors： Bülow R,Overath P

更新日期：1985-07-22 00:00:00

abstract：:A synthetic peptide (23 residues) that includes the antibacterial and lipopolysaccharide-binding regions of human lactoferricin, an antimicrobial sequence of lactoferrin, was used to study its action on cytoplasmic membrane of Escherichia coli 0111 and E. coli phospholipid vesicles. The peptide caused a depolarization...

journal_title：FEBS letters

authors： Aguilera O,Ostolaza H,Quirós LM,Fierro JF

更新日期：1999-12-03 00:00:00

abstract：:The heterotrophic nitrifier Paracoccus denitrificans expresses a membrane-associated ammonia monooxygenase. The active enzyme has been solubilized in the detergent dodecyl-beta-D-maltoside and purified by standard chromatographic techniques. This is the first purification of an ammonia monooxygenase. The enzyme consis...

journal_title：FEBS letters

authors： Moir JW,Crossman LC,Spiro S,Richardson DJ

更新日期：1996-05-27 00:00:00

abstract：:OmpC, a surface antigen of Salmonella typhi was crystallized after several attempts, using PEG 3350. Well shaped hexagonal crystals were grown from vapor diffusion method using octyl glucoside and C12E9 as detergents. Crystals are sensitive to X-ray and diffract weakly up to 7 A. Porin isoforms, due to the bound lipop...

journal_title：FEBS letters

authors： Arockiasamy A,Krishnaswamy S

更新日期：1999-06-25 00:00:00

abstract：:We previously isolated, by differential display and 5' RACE (rapid amplification of cDNA ends), cDNAs corresponding to genes activated following cryptogein treatment of tobacco cell suspensions, among them tcI 7 (tcI for tobacco cryptogein Induced), a gene encoding a beta-subunit of proteasome. Here, we report that tc...

journal_title：FEBS letters

authors： Etienne P,Petitot AS,Houot V,Blein JP,Suty L

更新日期：2000-01-28 00:00:00

abstract：:Sperm beta-acrosin activity is inhibited by suramin, a polysulfonated naphthylurea compound with therapeutic potential as a combined antifertility agent and microbicide. A kinetic analysis of enzyme inhibition suggests that three and four molecules of suramin bind to one molecule of ram and boar beta-acrosins respecti...

journal_title：FEBS letters

authors： Hermans JM,Haines DS,James PS,Jones R

更新日期：2003-06-05 00:00:00

abstract：:The uncoupler-induced inactivation of H+-ATPase in hepatoma 22a and mouse liver mitochondria has been studied. The dependence of this process on delta microH, and pH and ATP was established. The inactivated ATPase could be reactivated at alkaline pH values in the absence of ATP. These data indicate that the inactivati...

journal_title：FEBS letters

authors： Chernyak BV,Dukhovich VF,Khodjaev EYu

更新日期：1987-05-11 00:00:00

abstract：:A collagenase cleaving native type I [14C]collagen but inactive against the synthetic substrate Pz-Pro-Leu-Gly-Pro-D-Arg was extracted from mineralized human dental tissue. The enzyme specifically degrades native collagen into characteristic products (3/4) and (1/4). Its apparent molecular mass of 68 kDa is relatively...

journal_title：FEBS letters

authors： Dumas J,Hurion N,Weill R,Keil B

更新日期：1985-07-22 00:00:00

abstract：:The nucleotide sequence of the dnaK operon cloned from Porphyromonas gingivalis revealed that the operon does not contain homologues of either dnaJ or grpE. However, there were two genes which encode small heat shock proteins immediately downstream from the dnaK and they were transcribed together with dnaK as one unit...

journal_title：FEBS letters

authors： Yoshida A,Nakano Y,Yamashita Y,Oho T,Shibata Y,Ohishi M,Koga T

更新日期：1999-03-12 00:00:00

abstract：:HslVU is an ATP-dependent protease consisting of two multimeric components, the HslU ATPase and the HslV peptidase. To gain an insight into the role of HslVU in regulation of cell division, the reconstituted enzyme was incubated with SulA, an inhibitor of cell division in Escherichia coli, or its fusion protein with m...

journal_title：FEBS letters

authors： Seong IS,Oh JY,Yoo SJ,Seol JH,Chung CH

更新日期：1999-07-30 00:00:00

abstract：:A peroxidase with stability, chromatographic and immunoreactive properties similar to that of bovine lactoperoxidase has been partly purified from human colostrum. Hydrophobic interaction chromatography on Phenyl-Sepharose C1-4B gave a 10-fold purification with an apparent recovery of about 45%. The enzyme was quantit...

journal_title：FEBS letters

authors： Langbakk B,Flatmark T

更新日期：1984-09-03 00:00:00

abstract：:U46619 is a potent platelet agonist, its binding to the thromboxane A2 receptor resulting in Gq-binding protein-mediated responses; nevertheless, it is unable to cause platelet aggregation, unless released ADP is present. In this study we demonstrate that Gi activation is the step U46619 lacks to cause platelet aggreg...

journal_title：FEBS letters

authors： Pulcinelli FM,Pesciotti M,Pignatelli P,Riondino S,Gazzaniga PP

更新日期：1998-09-11 00:00:00

abstract：:The toxicity of the beta-amyloid (Abeta) peptide of Alzheimer's disease may relate to its polymerisation state (i.e. fibril content). We have shown previously that plasma lipoproteins, particularly when oxidised, greatly enhance Abeta polymerisation. In the present study the nature of the interactions between both nat...

journal_title：FEBS letters

authors： Stanyer L,Betteridge DJ,Smith CC

更新日期：2002-05-08 00:00:00

abstract：:Macrophages are abundant in the tumor microenvironment. They are highly plastic and able to acquire pro-tumoral phenotypes in response to microenvironmental stimuli. When we treated RAW 264.7 macrophages with inhibitors of various oncogenic pathways, we found that the focal adhesion kinase (FAK) inhibitors PF573228 an...

journal_title：FEBS letters

authors： He X,Chen X,Li B,Ji J,Chen S

更新日期：2017-12-01 00:00:00