The deazaguanine-derivative, queuine, affects cell proliferation, protein phosphorylation and the expression of the proto oncogenes c-fos and c-myc in HeLa cells.

abstract：:The 40 N-terminal amino acids of the 20 kDa antigen A2 from Brucella melitensis were sequenced and showed important similarities with 4 bacterioferrins. A monoclonal antibody raised against this antigen cross-reacted with Escherichia coli bacterioferritin. Hybridization of two sets of degenerate primers with B. melite...

journal_title：FEBS letters

authors： Denoel PA,Zygmunt MS,Weynants V,Tibor A,Lichtfouse B,Briffeuil P,Limet JN,Letesson JJ

更新日期：1995-03-20 00:00:00

abstract：:A series of oligomeric double and triple helical DNAs with irregular sequences of homopurine and homopyrimidine strands were prepared. DNA triplexes were identified by CD spectroscopy and thermal denaturation profiles (biphasic helix-coil transition). Condensation of oligonucleotides on single and double-stranded DNA ...

journal_title：FEBS letters

authors： Dolinnaya NG,Pyatrauskene OV,Shabarova ZA

更新日期：1991-06-24 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：:In eukaryotic cells, peroxiredoxins are both antioxidants and regulators of H(2)O(2)-mediated signaling. We previously found that peroxiredoxin-I (Prx-I) was overexpressed in non-small cell lung cancer (NSCLC) tissue. Since overexpressed protein can induce a humoral immune response, we examined whether serum from NSCL...

journal_title：FEBS letters

authors： Chang JW,Lee SH,Jeong JY,Chae HZ,Kim YC,Park ZY,Yoo YJ

更新日期：2005-05-23 00:00:00

abstract：:Trace amounts of gangliosides were found in rabbit skeletal muscle sarcoplasmic reticulum and their main part was shown, by high performance thin layer chromatography. to be GM3. Addition of GM3 to the soybean phospholipids used for reconstitution of proteoliposomes markedly increased ATP hydrolysis as well as Ca2+ up...

journal_title：FEBS letters

authors： Wang LH,Tu YP,Yang XY,Tsui ZC,Yang FY

更新日期：1996-06-17 00:00:00

abstract：:The cardiovascular system consists of many cell types with distinct embryonic origins. Cells from an Islet1 (Isl1)-expressing progenitor population make a substantial contribution to the developing heart. We reasoned that cells derived from Isl1-expressing progenitors might contribute more widely to the cardiovascular...

journal_title：FEBS letters

authors： Keenan ID,Rhee HJ,Chaudhry B,Henderson DJ

更新日期：2012-06-21 00:00:00

abstract：:A characteristic of the antioxidant, probucol, is its inability to inhibit apolipoprotein B fragmentation in low density lipoprotein (LDL), despite a pronounced ability to inhibit lipid oxidation on relatively lengthy exposure to Cu(II). Here we show that a short exposure of LDL to hydrogen peroxide and Cu(II) leads t...

journal_title：FEBS letters

authors： Hunt JV,Bailey JR,Schultz DL,McKay AG,Mitchinson MJ

更新日期：1994-08-08 00:00:00

abstract：:Megasphaera elsdenii and Clostridium MP flavodoxins have been investigated by photo-CIDNP techniques. Using time-resolved spectroscopy and external dyes carrying different charges it was possible to assign unambiguously the resonance lines in the NMR-spectra to tyrosine, tryptophan and methionine residues in the two p...

journal_title：FEBS letters

authors： Moonen CT,Hore PJ,Müller F,Kaptein R,Mayhew SG

更新日期：1982-11-22 00:00:00

abstract：:The Surfeit locus is an unusual cluster of at least 6 housekeeping genes whose organisation is conserved between birds and mammals. We have previously shown that the divergently transcribed Surf-1 and Surf-2 genes are separated by a bi-directional, TATA-less promoter. In mouse, the Surf-1/Surf-2 promoter contains thre...

journal_title：FEBS letters

authors： Gaston K,Fried M

更新日期：1994-06-27 00:00:00

abstract：:The fungal metabolite brefeldin A (BFA) is known to disrupt the Golgi apparatus resulting in redistribution of Golgi proteins to the endoplasmic reticulum and inhibition of protein secretion. BFA was found to inhibit protein synthesis in rat glioma C6 cells by up to 70% between 0.1 and 1 microgram/ml. Inhibition was b...

journal_title：FEBS letters

authors： Fishman PH,Curran PK

更新日期：1992-12-21 00:00:00

abstract：:Differentiation enhancing factor (DEF) is a 29 kDa protein expressed in murine erythroleukemia (MEL) cells and active in promoting a significant increase in the rate of hexamethylenebisacetamide induced differentiation of these cells. The factor was recently shown to possess an amino acid sequence identical to that re...

journal_title：FEBS letters

authors： Melloni E,Sparatore B,Patrone M,Pessino A,Passalacqua M,Pontremoli S

更新日期：1995-07-24 00:00:00

abstract：:The ubiquitous transcription factor Sp1 has been implicated in the mechanism which maintains CpG islands methylation-free. Plasmids containing GC boxes (Sp1 sites) were in vitro methylated at every CpG dinucleotide. After stable introduction into F9 embryonal carcinoma cells, we analysed the methylation of the sequenc...

journal_title：FEBS letters

authors： Silke J,Rother KI,Georgiev O,Schaffner W,Matsuo K

更新日期：1995-08-21 00:00:00

abstract：:Transthyretin (TTR) is a circulatory protein which plays an important role in the transport of both thyroid hormone and retinol. Hep G2 cells, a human hepatoma-derived cell line, have been used extensively in studies of protein secretion by liver cells. The original description of this cell line indicated that this li...

journal_title：FEBS letters

authors： Blaner WS,Bonifácio MJ,Feldman HD,Piantedosi R,Saraiva MJ

更新日期：1991-08-05 00:00:00

abstract：:We have characterized the Bacillus subtilis homologs of fructoselysine 6-kinase and fructoselysine-6-phosphate deglycase, two enzymes that specifically metabolize the Amadori compound fructose-epsilon-lysine in Escherichia coli. The B. subtilis enzymes also catalyzed the phosphorylation of fructosamines to fructosamin...

journal_title：FEBS letters

authors： Wiame E,Duquenne A,Delpierre G,Van Schaftingen E

更新日期：2004-11-19 00:00:00

abstract：:The effective synthesis of the envelope antigen F1 of Y. pestis in E. coli HB101 is mediated by the expression of the caf1M gene. This gene was sequenced, and the protein encoded was found to have a significant homology with the chaperone protein PapD of uropathogenic E. coli. The data presented allow one to suppose C...

journal_title：FEBS letters

authors： Galyov EE,Karlishev AV,Chernovskaya TV,Dolgikh DA,Smirnov OYu,Volkovoy KI,Abramov VM,Zav'yalov VP

更新日期：1991-07-29 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：:TGF-β family signaling through Smads is conceptually a simple and linear signaling pathway, driven by sequential phosphorylation, with type II receptors activating type I receptors, which in turn activate R-Smads. Nevertheless, TGF-β family proteins induce highly complex programs of gene expression responses that are ...

journal_title：FEBS letters

authors： Xu P,Liu J,Derynck R

更新日期：2012-07-04 00:00:00

abstract：:Dendritic cells (DC) were enriched from murine spleen by exploring their intermediate density and transient weak adherence. The isolated population contained excellent antigen presenting cells with high surface expression of major histocompatibility complex (MHC) class II determinants thus exhibiting crucial immunofun...

journal_title：FEBS letters

authors： Fischer HG,Eder C

更新日期：1995-10-09 00:00:00

abstract：:The somatostatin upstream enhancer (SMS-UE) is a highly complex enhancer element. The distal A-element contains overlapping Pdx1 and Pbx binding sites. However, a point mutation in the A-element that abolishes both Pdxl and Pbx binding does not impair promoter activity. In contrast, a point mutation that selectively e...

journal_title：FEBS letters

authors： Andersen FG,Jensen J,Heller RS,Petersen HV,Larsson LI,Madsen OD,Serup P

更新日期：1999-02-26 00:00:00

abstract：:We have previously shown that topoisomerase I (topo I) antagonist inhibited retrovirus replication. Since tyrphostins, synthetic compounds and protein tyrosine kinases (PTKs) blockers, inhibited topo I activity (manuscript in preparation) we examined their ability to inhibit Moloney murine leukemia virus (Mo-MuLV) rep...

journal_title：FEBS letters

authors： Esther A,Iftach S,Esther P

更新日期：1994-03-14 00:00:00

abstract：:Contact inhibition of locomotion (CIL) occurs when a cell ceases moving in the same direction following contact with another cell. Homotypic and heterotypic CIL occur between cells of the same and different types, respectively. Using Abercrombie's confronted explants assay we studied the effect of changing Rac1 or Rho...

journal_title：FEBS letters

authors： Anear E,Parish RW

更新日期：2012-05-07 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 dual function of the regulatory beta-subunit of protein kinase CK2 is highlighted by its ability to abolish calmodulin phosphorylation in contrast to its stimulatory effect on the phosphorylation of peptide substrates. Here we show that a synthetic peptide reproducing the C-terminal region of the beta-subunit (bet...

journal_title：FEBS letters

authors： Marin O,Meggio F,Boldyreff B,Issinger OG,Pinna LA

更新日期：1995-04-17 00:00:00

abstract：:The two activators of protein kinase C, oleoylacetylglycerol (OAG) and dioctanoylglycerol (DOG), are able to induce a concentration-dependent rise in cytoplasmic free Ca2+ concentration in gel-filtered human platelets, detected as an increase in quin2 fluorescence. The phorbol ester phorbol-12-myristate-13-acetate (PM...

journal_title：FEBS letters

authors： Bruns C,Schächtele C,Marmé D

更新日期：1987-08-31 00:00:00

abstract：:Transections of the entorhinal afferent fibers to hippocampus, perforant path (PP), result in the denervation in specific hippocampal subregions, which is followed by a series of plastic events including axon sprouting and reactive synaptogenesis. Many growth-associated molecules are thought to participate in these ev...

journal_title：FEBS letters

authors： Wang Y,Ni ZM,Zhou CF

更新日期：2005-02-14 00:00:00

abstract：:Proteases not only play a fundamental role in numerous physiological processes, but are also involved in several human diseases including Alzheimer's disease (AD). A key protease implicated in AD is the so far unidentified gamma-secretase, which cleaves the membrane-bound beta-amyloid precursor protein (betaAPP) at th...

journal_title：FEBS letters

authors： Steiner H,Pesold B,Haass C

更新日期：1999-12-17 00:00:00

abstract：:Soluble aluminium (Al(3+)) is the major constraint to plant growth on acid soils. Plants have evolved mechanisms to tolerate Al(3+) and one type of mechanism relies on the efflux of organic anions that protect roots by chelating the Al(3+). Al(3+) resistance genes of several species have now been isolated and found to...

journal_title：FEBS letters

authors： Delhaize E,Gruber BD,Ryan PR

更新日期：2007-05-25 00:00:00

abstract：:Atg18 and Atg21 are homologous S. cerevisiae autophagy proteins. Atg18 is essential for biogenesis of Cvt vesicles and autophagosomes, while Atg21 is only essential for Cvt vesicle formation. We found that mutated Atg18-(FTTGT), which lost almost completely its binding to PtdIns3P and PtdIns(3,5)P(2), is non-functiona...

journal_title：FEBS letters

authors： Krick R,Tolstrup J,Appelles A,Henke S,Thumm M

更新日期：2006-08-21 00:00:00

abstract：:Immunoprecipitated p100Gag-Mil protein kinase from MH2-transformed quail embryo fibroblasts is associated with an 89 kDa protein. The molar ratio between p89 and Gag-Mil in the immunocomplex is 0.72, indicating that the majority of Gag-Mil is complexed with p89. During mitosis part of Gag-Mil is shifted to a form with...

journal_title：FEBS letters

authors： Lovrić J,Bischof O,Moelling K

更新日期：1994-04-18 00:00:00

abstract：:The off rate from the first calcium-binding site of the C2A domain of synaptotagmin I, a putative calcium receptor in neurotransmitter release, has been determined by 15N-nuclear magnetic resonance relaxation dispersion measurements. The exchange rate was obtained by fitting the dependence of the transverse relaxation...

journal_title：FEBS letters

authors： Millet O,Bernadó P,Garcia J,Rizo J,Pons M

更新日期：2002-04-10 00:00:00