Protonmotive pathways and mechanisms in the cytochrome bc1 complex.

abstract：:Several protein kinase C (PKC) isoforms are expressed in human platelets. We report that PKC-delta is tyrosine phosphorylated within 30 s of platelet activation by thrombin. This correlated with a 2-3-fold increase in the kinase activity of PKC-delta relative to unstimulated platelets. The tyrosine phosphorylated PKC-...

journal_title：FEBS letters

authors： Moussazadeh M,Haimovich B

更新日期：1998-11-06 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：:Plasma citrate levels were found to be elevated in non-alcoholic fatty liver disease (NAFLD) patients. Cellular experiments indicated that increased citrate levels might originate from an excess of fatty acids. The impact of elevated citrate levels on oxidative stress was examined. It was found that citrate stimulated...

journal_title：FEBS letters

authors： van de Wier B,Balk JM,Haenen GR,Giamouridis D,Bakker JA,Bast BC,den Hartog GJ,Koek GH,Bast A

更新日期：2013-08-02 00:00:00

abstract：:This paper summarizes results of the 40-year studies on replication and recombination of RNA molecules in the cell-free amplification system of bacteriophage Q. Special attention is paid to the molecular colony technique that has provided for the discovery of the nature of "spontaneous" RNA synthesis by Q replicase an...

journal_title：FEBS letters

authors： Chetverin AB

更新日期：2004-06-01 00:00:00

abstract：:The influence of the esterification of the 3'(2') hydroxyl group of tRNA on the hydrolysis by venom phosphodiesterase (Crotalus adamanteus) was studied. It was shown that this esterification does not change the rate of hydrolysis. At pH 7-8, no significant differences were observed either when the alpha amino group of...

journal_title：FEBS letters

authors： Yot P,Gueguen P,Chapeville F

更新日期：1968-08-01 00:00:00

abstract：:Human prothymosin alpha mutants were generated with the aid of random mutagenesis and screened for their ability to inhibit yeast Saccharomyces cerevisiae cell growth. Conversion of Lys-87 to Glu resulted in an inactivated prothymosin alpha mutant, which lost the ability of the wild-type protein to block yeast cell gr...

journal_title：FEBS letters

authors： Rubtsov Y,Vartapetian A

更新日期：1996-11-18 00:00:00

abstract：:A number of recent observations have suggested that the endocytic and biosynthetic pathways may share fundamentally similar transport mechanisms at the molecular level. Some of the more striking of these suggestions have come from a comparison of the effects of the macrocyclic lactone brefeldin A (BFA) on endosomes an...

journal_title：FEBS letters

authors： Hunziker W,Whitney JA,Mellman I

更新日期：1992-07-27 00:00:00

abstract：:The present study discusses the efficacy of Aloe emodin-8-O-glycoside (AEG), a plant derived anthroquinone, on alleviating insulin resistance and augmenting glycogen synthesis in L6 myotubes and 3T3L1 adipocytes. Dose-dependent increase in glucose uptake activity (GUA) was observed in both cell lines. Immunoblot analy...

journal_title：FEBS letters

authors： Anand S,Muthusamy VS,Sujatha S,Sangeetha KN,Bharathi Raja R,Sudhagar S,Poornima Devi N,Lakshmi BS

更新日期：2010-07-16 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：:Glucose-regulated protein 58 (GRP58)-like immunoreactivity in rat liver obtained in the evening or after fasting underwent an electrophoretic band-shift, which disappeared after phosphatase-treatment. Since mass spectrometric analysis raised a possibility that Ser150 of GRP58 is phosphorylated, an antibody against the...

journal_title：FEBS letters

authors： Kita K,Okumura N,Takao T,Watanabe M,Matsubara T,Nishimura O,Nagai K

更新日期：2006-01-09 00:00:00

abstract：:Three single-stranded RNA transcripts synthesized in vitro by a virion-associated RNA polymerase of bacteriophage phi 6 were sequenced at their 5'- and 3'-termini. The sequences agreed with those of the + strands of the 3 double-stranded RNA segments [FEBS Lett. (1982) 141,111-115]. The results show that the transcrip...

journal_title：FEBS letters

authors： Emori Y,Iba H,Okada Y

更新日期：1982-11-08 00:00:00

abstract：:Monoamine oxidase B (MAO B) is an outer mitochondrial membrane protein that oxidizes arylalkylamine neurotransmitters and has been a valuable drug target for many neurological disorders. The 1.7 angstrom resolution structure of human MAO B shows the enzyme is dimeric with a C-terminal transmembrane helix protruding fr...

journal_title：FEBS letters

authors： Binda C,Hubálek F,Li M,Edmondson DE,Mattevi A

更新日期：2004-04-30 00:00:00

abstract：:The nucleotide sequence of the Pseudomonas saccharophila gene encoding maltotetraohydrolase (G4-forming amylase) has been determined. The coding region for the G4-forming amylase precursor contained 1653 nucleotides. The deduced precursor protein included an N-terminal 21-residue putative signal peptide; the deduced m...

journal_title：FEBS letters

authors： Zhou JH,Baba T,Takano T,Kobayashi S,Arai Y

更新日期：1989-09-11 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：:The possible in vivo interaction of the Nicotiana tabacum agglutinin (Nictaba) with endogenous glycoproteins was corroborated using a combination of confocal/electron microscopy of an EGFP-Nictaba fusion protein expressed in tobacco Bright Yellow-2 (BY-2) cells and biochemical analyses. In vitro binding studies demons...

journal_title：FEBS letters

authors： Lannoo N,Peumans WJ,Pamel EV,Alvarez R,Xiong TC,Hause G,Mazars C,Van Damme EJ

更新日期：2006-11-27 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：:Charybdotoxin (ChTX), a 4.3 kDa polypeptide toxin from the venom of the scorpion Leiurus quinquestriatus, blocks both a Ca-activated K channel (IC50 approximately 15 nM) and a Ca-independent voltage-gated K channel (IC50 approximately 40 nM) in rat brain synaptosomes. These results indicate that in this preparation Ch...

journal_title：FEBS letters

authors： Schneider MJ,Rogowski RS,Krueger BK,Blaustein MP

更新日期：1989-07-03 00:00:00

abstract：:We have examined the ability of inositol 1,4,5-trisphosphate (InsP3) to cause contractions of mechanically skinned muscle fibres of frog and barnacle. InsP3 (10-500 microM) did not cause any tension development in 25 frog skinned fibres and 26 barnacle myofibrillar bundles, although contractions could be readily evoke...

journal_title：FEBS letters

authors： Lea TJ,Griffiths PJ,Tregear RT,Ashley CC

更新日期：1986-10-20 00:00:00

abstract：:Ehrlich ascites tumor cells were found to be in a low bioenergetic status, as evaluated by acridine orange uptake and ATP content, when resuspended in a glucose medium shortly after removal from the animal. Dye uptake as well as ATP content then increased for about 2 h at room temperature. This effect was only slightl...

journal_title：FEBS letters

authors： Dell'Antone P

更新日期：1994-08-22 00:00:00

abstract：:Tau phosphorylation plays a crucial role in microtubule stabilization and in Alzheimer's disease. To characterize the molecular mechanisms of tau binding on microtubules, we synthesized the peptide R1 (QTAPVPMPDLKNVKSKIGSTENLKHQPGGGKVQI), reproducing the first tau microtubule binding motif. We thermodynamically charac...

journal_title：FEBS letters

authors： Devred F,Douillard S,Briand C,Peyrot V

更新日期：2002-07-17 00:00:00

abstract：:Dipeptidylaminopeptidase IV, a plasma membrane-bound glycoprotein, is characterized by an intramolecular heterogeneous turnover of the protein backbone and carbohydrate chain. The faster turnover of the latter is restricted only to the outer sugars. The inner core sugars D-mannose and N-acetyl-D-glucosamine turn over ...

journal_title：FEBS letters

authors： Volk BA,Kreisel W,Köttgen E,Gerok W,Reutter W

更新日期：1983-10-31 00:00:00

abstract：:We have followed with autoradiography the course of DNA synthesis and with cytofluorometry the partition of DNA during mitosis, through the different phases of the life-span of human fibroblasts. Towards the end of the proliferative potential of the cell population, DNA synthesis was disturbed during the late part of ...

journal_title：FEBS letters

authors： Macieira-Coelho A

更新日期：1995-01-23 00:00:00

abstract：:We report phosphorylated and ubiquitinated aggregates of TAR DNA binding protein of 43 kDa (TDP-43) in SH-SY5Y cells similar to those in brains of amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration with ubiquitinated inclusions (FTLD-U). Two candidate sequences for the nuclear localization signa...

journal_title：FEBS letters

authors： Nonaka T,Arai T,Buratti E,Baralle FE,Akiyama H,Hasegawa M

更新日期：2009-01-22 00:00:00

abstract：:The expression of the cytochrome P4501A1 gene, CYP1A1, is induced by e.g. 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) mainly by transcriptional mechanisms. The inducers mediate their effect upon binding and activation of the aryl hydrocarbon receptor (AHR) transcription-factor complex. Utilizing chimeric CYP1A1/CAT con...

journal_title：FEBS letters

authors： Jørgensen EC,Autrup H

更新日期：1995-05-29 00:00:00

abstract：:We have successfully delivered FITC and FITC-Dextran (70, 250 kDa) into canola protoplasts by centrifuging cells with different amounts of microbubbles at variable centrifuge speed. The efficiency is around 90%, while cell viability remains high. Confocal microscopy images show that both FITC and FITC-Dextran are scat...

journal_title：FEBS letters

authors： He C,Gu Q,Huang M,Xing J,Chen J

更新日期：2013-01-31 00:00:00

abstract：:As a SNARE binding protein, tomosyn has been reported to negatively regulate synaptic exocytosis via arresting syntaxin-1 and SNAP-25 into a nonfusogenic product that precludes synaptobrevin-2 entry, raising the question how the assembly of the SNARE complex is achieved. Here, we have investigated new functions of tom...

journal_title：FEBS letters

authors： Li Y,Wang S,Li T,Zhu L,Ma C

更新日期：2018-04-01 00:00:00

abstract：:Cell stimulation raised the cytosolic free Ca2+ concentration, [Ca(2+]i and induces activation of Na+/H+ exchange which raises the cytosolic pH, pHi. Recent studies have addressed the question whether Na+/H+ exchange plays a role in Ca(2+) influx and, specifically, whether a rise in pHi alone suffices to open Ca(2+) c...

journal_title：FEBS letters

authors： Siffert W,Akkerman JW

更新日期：1989-12-18 00:00:00

abstract：:A subcellular fraction, highly enriched in uncoated vesicles (UCV) with high H+-ATPase (EC 3.6.1.34) activity, was isolated from the crude microsomal fraction of rat liver homogenates by discontinuous sucrose gradient centrifugation. The UCV fraction, recovered at the interface of sucrose density 1.08 and 1.10 g/ml, w...

journal_title：FEBS letters

authors： Flatmark T,Haavik J,Grønberg M,Jorunn Kleiveland L,Wahlstrøm Jacobsen S,Berge SV

更新日期：1985-09-02 00:00:00

abstract：:Dried cells of Brevibacterium ammoniagenes are a good enzyme source for the preparative synthesis of CoA from pantothenic acid, L-cysteine and ATP. A problem with this synthesis is that the CoA synthesis is repressed by negative feedback inhibition by CoA to pantothenate kinase, the first step enzyme for the biosynthe...

journal_title：FEBS letters

authors： Shimizu S,Komaki R,Tani Y,Yamada H

更新日期：1983-01-24 00:00:00

abstract：:Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system characterized by widespread inflammation, focal demyelination and a variable degree of axonal and neuronal loss. Ionic conductances regulate T cell activation as well as neuronal function and thus have been found to play a crucial ...

journal_title：FEBS letters

authors： Ehling P,Bittner S,Budde T,Wiendl H,Meuth SG

更新日期：2011-12-01 00:00:00