Energetic aspects of intramolecular coupling between the nucleotide binding site and the distal switch II region of the yeast RAS2 protein.

abstract：:The in vivo toxicity of vanadium(V) has been found to correlate with the depletion of cellular glutathione and related non-protein thiols. With a view to understanding the mechanism for this observation, we have investigated the oxidation of glutathione, cysteine N-acetylcysteine and penicillamine by vanadium(V), usin...

journal_title：FEBS letters

authors： Shi XL,Sun XY,Dalal NS

更新日期：1990-10-01 00:00:00

abstract：:We have reconstituted thin filaments comprising pyrene-labelled actin (pyr-actin), tropomyosin (Tm) and cardiac troponin (cTn). cTn was isolated in two defined phosphorylation states; completely dephosphorylated on all subunits and with only the cTnI subunit bisphosphorylated. The thin filament was saturated with cTn ...

journal_title：FEBS letters

authors： Reiffert SU,Jaquet K,Heilmeyer LM Jr,Ritchie MD,Geeves MA

更新日期：1996-04-08 00:00:00

abstract：:Previously, several studies have demonstrated that autophosphorylation of the C-terminal tyrosine residues (Tyr1316 and Tyr1322) affects the signaling properties of the insulin receptor in vivo. To assess the biochemical consequences of the C-terminal phosphorylation in vitro, we have constructed, purified and charact...

journal_title：FEBS letters

authors： Tennagels N,Bergschneider E,Al-Hasani H,Klein HW

更新日期：2000-08-11 00:00:00

abstract：:The T-cell antigen receptor (TCR) is a multisubunit transmembrane complex that mediates the antigen-specific activation of T cells. Using a variety of techniques, several research groups have shown that TCRs are at least partially pre-clustered before antigen binding. These new findings are contradictory to the "class...

journal_title：FEBS letters

authors： Molnár E,Deswal S,Schamel WW

更新日期：2010-12-15 00:00:00

abstract：:The pancreatic ATP-sensitive potassium channels comprise two subunits: SUR1 and Kir6.2. Two SUR1 mutations, A116P and V187D, reduce channel activity causing persistent hyperinsulinemic hypoglycemia of infancy. We investigated whether these mutations cause temperature sensitive misfolding. We show that the processing d...

journal_title：FEBS letters

authors： Yang K,Fang K,Fromondi L,Chan KW

更新日期：2005-08-01 00:00:00

abstract：:The cytosolic NADP(+)-dependent methylenetetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase-formyltetrahydrofolate synthetase is ubiquitously expressed in all mouse tissues and cell lines examined. Northern analyses of the RNA indicated that there is an extensive variation in the levels of mRNA in ...

journal_title：FEBS letters

authors： Peri KG,MacKenzie RE

更新日期：1991-12-02 00:00:00

abstract：:Accurate cDNA data is useful to validate gene structures in a genome. We sequenced 35189 expressed sequence tags (ESTs) obtained from the highly destructive rice blast fungus, Magnaporthe grisea. Our custom-made computational programs mapped these ESTs on the M. grisea genome sequence, and reconstructed gene structure...

journal_title：FEBS letters

authors： Numa H,Nishimura M,Tanaka T,Kanamori H,Yang CC,Matsumoto T,Nagamura Y,Itoh T

更新日期：2009-02-18 00:00:00

abstract：:The binding of protein HU from Escherichia coli to nucleic acids was investigated by affinity chromatography under various conditions, by a nitrocellulose retention assay and by isopycnic centrifugations in metrizamide gradients. The results indicate that HU has a preference for binding to RNA and single-stranded DNA ...

journal_title：FEBS letters

authors： Holck A,Kleppe K

更新日期：1985-06-03 00:00:00

abstract：:Three novel neuropeptides, isolated from ganglia of the African giant snail, Achatina fulica, were named WWamide-1, -2 and -3. These substances were biologically active heptapeptide amides with a Trp residue at both the N- and C-termini. WWamide-1, which displayed an inhibitory activity on a central neuron of the snai...

journal_title：FEBS letters

authors： Minakata H,Ikeda T,Muneoka Y,Kobayashi M,Nomoto K

更新日期：1993-05-24 00:00:00

abstract：:Two new three-disulfide intermediates have been found to be populated in the oxidative folding pathway of bovine pancreatic ribonuclease A at a low temperature (15 degrees C). These intermediates, des-[26-84] and des-[58-110], possess all but one of the four native disulfide bonds and have a stable tertiary structure,...

journal_title：FEBS letters

authors： Welker E,Narayan M,Volles MJ,Scheraga HA

更新日期：1999-11-05 00:00:00

abstract：:The complementary-addressed modification of DNA and proteins in chromatin using photoreactive derivatives of pd(AC)6 has been studied. These oligonucleotides form complementary complexes with specific DNA sequences and modify both DNA and proteins in the vicinity of these regions, and can be used for investigation of ...

journal_title：FEBS letters

authors： Bozhenok LN,Khazina EB,Chernolovskaya EL,Kobets ND

更新日期：1998-11-27 00:00:00

abstract：:HBV particles with genome derived from spliced mRNAs accumulate in patients with virus-derived severe liver necrosis and fibrosis. We investigated the role of an intronic element (intronic splicing silencer-long, ISS(L)) on splicing of HBV minigene transcripts. Removal of the entire ISS(L) showed two-fold increase in ...

journal_title：FEBS letters

authors： Chowdhury JB,Roy D,Ghosh S

更新日期：2011-10-20 00:00:00

abstract：:More than 40 years have passed since the original publication by Hayflick and Moorhead led to the concept of the 'Hayflick limit' of the maximum number of divisions which somatic cells undergo in vitro. This concept is still regarded as a fundamental characteristic of species longevity. Here we want to emphasize anoth...

journal_title：FEBS letters

authors： Yegorov YE,Zelenin AV

更新日期：2003-04-24 00:00:00

abstract：:Vitamin D3, cholecalciferol, induces cell-cell communication via gap junctions in murine fibroblasts (C3H/10T 1/2 cells) at concentrations between 0.01 and 1.0 microM, as assayed by the dye transfer method using Lucifer yellow CH. The extent of induction is similar to that obtained with the positive controls, canthaxa...

journal_title：FEBS letters

authors： Stahl W,Nicolai S,Hanusch M,Sies H

更新日期：1994-09-19 00:00:00

abstract：:Hterologous complementation of yeast mutants has enabled the isolation of genes encoding several families of amino acid transporters. Among them, NTR1 codes for a membrane protein with weak histidine transport activity. However, at the sequence level, NTR1 is related to rather non-specific oligopeptide transporters fr...

journal_title：FEBS letters

authors： Rentsch D,Laloi M,Rouhara I,Schmelzer E,Delrot S,Frommer WB

更新日期：1995-08-21 00:00:00

abstract：:Acetylcholine (1-10 microM) depolarized the membrane and stimulated glucose-induced bursts of electrical activity in mouse pancreatic B-cells. The acetylcholine effects were mimicked by muscarine while nicotine had no effect on membrane potential. Pirenzepine, an antagonist of the classical M1-type muscarinic receptor...

journal_title：FEBS letters

authors： Santos RM,Rojas E

更新日期：1989-06-05 00:00:00

abstract：:A macromolecular complex containing survival of motor neurons (SMN), the spinal muscular atrophy protein, and Gemin2-7 interacts with Sm proteins and snRNAs to carry out the assembly of these components into spliceosomal small nuclear ribonucleoproteins (snRNPs). Here we report the characterization of unr-interacting ...

journal_title：FEBS letters

authors： Carissimi C,Baccon J,Straccia M,Chiarella P,Maiolica A,Sawyer A,Rappsilber J,Pellizzoni L

更新日期：2005-04-25 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：:Nitrate compartmentalization in intracellular organelles has been long recognized as critical for plant physiology but the molecular identity of the proteins involved remained unclear for a long time. In Arabidopsis thaliana, AtClC-a has been recently shown to be a NO(3)(-)/H(+) antiporter critical for nitrate transpo...

journal_title：FEBS letters

authors： Zifarelli G,Pusch M

更新日期：2010-05-17 00:00:00

abstract：:Dictyostelium discoideum Ax2 produces both L-erythro-tetrahydrobiopterin (BH4) and its stereoisomer D-threo-BH4 (DH4). The putative cofactor function of them for phenylalanine hydroxylase (PAH) was investigated through genetic manipulation and quantitative determination of pteridines. In addition to establishing that ...

journal_title：FEBS letters

authors： Kim HL,Park MB,Park YS

更新日期：2011-10-03 00:00:00

abstract：:We present the three-dimensional structure of the N-terminal FK506-binding protein (FKBP)-like domain of the immunophilin FKBP42 from Arabidopsis thaliana. The data provide the structural background for the explanation of key functional properties reported previously. ...

journal_title：FEBS letters

authors： Weiergräber OH,Eckhoff A,Granzin J

更新日期：2006-01-09 00:00:00

abstract：:A central step in xanthone biosynthesis is the formation of the C13 skeleton, i.e. an intermediate benzophenone. Biosynthesis of 2,3',4,6-tetrahydroxybenzophenone from m-hydroxybenzoyl-CoA and malonyl-CoA was shown in cell-free extracts from cultured cells of Centaurium erythraea. The enzyme catalyzing this reaction w...

journal_title：FEBS letters

authors： Beerhues L

更新日期：1996-04-01 00:00:00

abstract：:Dosage compensation involves fine-tuning of gene expression at the level of entire chromosomes. The principles that assure selective targeting of the male X chromosome in Drosophila and the mechanism by which transcription levels are adjusted in a twofold range are still mysterious. We discuss the prevalent models in ...

journal_title：FEBS letters

authors： Straub T,Dahlsveen IK,Becker PB

更新日期：2005-06-13 00:00:00

abstract：:The host-controlled EcoK restriction of unmodified phage lambda was five-fold alleviated in the wild-type Escherichia coli strain K12 carrying the R64 plasmid of the incompatibility group I1. The relevant gene was mapped between the origin of vegetative replication (rep, oriV) and the tet(r) gene about 60 kbp downstre...

journal_title：FEBS letters

authors： Rastorguev SM,Zavilgelsky GB,Tchurikov NA

更新日期：1998-04-10 00:00:00

abstract：:Streptozotocin (STZ)-induced diabetic animals are vulnerable to cold stress. Uncoupling proteins (UCPs) play an important role in regulating thermogenesis. We investigated the gene expressions of UCPs in brown adipose tissue (BAT), white adipose tissue (WAT), liver and gastrocnemius muscle of STZ-diabetic rats using N...

journal_title：FEBS letters

authors： Kageyama H,Suga A,Kashiba M,Oka J,Osaka T,Kashiwa T,Hirano T,Nemoto K,Namba Y,Ricquier D,Giacobino JP,Inoue S

更新日期：1998-12-04 00:00:00

abstract：:The Pep12 protein of Saccharomyces cerevisiae is a member of the syntaxin family thought to function as target membrane receptor (t-SNARE) for vesicular intermediates travelling between the Golgi apparatus and the vacuole. Exploiting the temperature-sensitive growth phenotype of pep12 deletion strains, we identified V...

journal_title：FEBS letters

authors： Götte M,Gallwitz D

更新日期：1997-07-07 00:00:00

abstract：:In Clostridium thermoaceticum, the synthesis of acetyl-CoA from methyl tetrahydrofolate occurs via a series of enzymatic reactions involving methyl transferase, corrinoid/Fe-S protein (corrinoid), carbon monoxide dehydrogenase (CODH) and ferredoxin. We have investigated the possibility of one or more of these proteins...

journal_title：FEBS letters

authors： Shanmugasundaram T,Sundaresh CS,Kumar GK

更新日期：1993-07-12 00:00:00

abstract：:During the course of large scale purification of the D1 dopamine receptor from rat brain, a protein of approximately 87,000 daltons (p87) was observed to copurify with the D1 receptor through four chromatographic steps. To characterize the nature of this protein, bovine and rat cDNA clones were isolated and sequenced....

journal_title：FEBS letters

authors： Gingrich JA,Andersen PH,Tiberi M,el Mestikawy S,Jorgensen PN,Fremeau RT Jr,Caron MG

更新日期：1992-11-09 00:00:00

abstract：:A pronounced transitory increase of histone acetyltransferase (EC 2.3.1.48) activity before the onset of DNA replication is shown to occur in regenerating rat liver. This effect is followed by an increase in the H1/H1(0) ratio at the start of DNA synthesis; H1(0) de is replaced by H1. Histone acetylation and H1/H1(0) ...

journal_title：FEBS letters

authors： Weiss G,Puschendorf B

更新日期：1988-09-26 00:00:00

abstract：:Recent evidence indicates that cell-cycle regulating proteins are involved in apoptotic process in post-mitotic neurons. In this study, we examined cell-cycle regulators for G1/S cell-cycle progression after a transient focal cerebral ischemia induced by middle cerebral artery (MCA) occlusion. In the cerebral frontopa...

journal_title：FEBS letters

authors： Wen Y,Yang S,Liu R,Simpkins JW

更新日期：2005-08-29 00:00:00