Phasing of RecA monomers on quasi-random DNA sequences.

abstract：:10Sa RNA is a bacterial small stable RNA, in which the 5'- and 3'-end sequences are folded into a tRNA-like structure. The RNA accepts alanine in vitro, and interacts with 70S ribosomes in the cells. In this study, we examined the ribosome-binding properties of Escherichia coli 10Sa RNA in vivo, and found that the ami...

journal_title：FEBS letters

authors： Tadaki T,Fukushima M,Ushida C,Himeno H,Muto A

更新日期：1996-12-16 00:00:00

abstract：:In higher eukaryotes the hypermodified guanine analogue, queuine (7-(5-[(1S,4S,5R)-4,5-dihydroxy-2-cyclopentene-1-yl) amino)-methyl)-7-deazaguanine), occurs free or as modified nucleoside (Q) in the anticodon of specific tRNAs. Fast proliferating tissues and tumors contain considerable amounts of free queuine and Q-de...

journal_title：FEBS letters

authors： Langgut W,Kersten H

更新日期：1990-06-04 00:00:00

abstract：:Hydrolysis of GTP, bound to members of the G-protein superfamily, terminates their downstream signaling activity. A conserved glutamine serves a critical role in this pivotal guanosine triphosphatase (GTPase) reaction. However, the role of the catalytic glutamine in GTP hydrolysis is still not well understood. We have...

journal_title：FEBS letters

authors： Zor T,Andorn R,Sofer I,Chorev M,Selinger Z

更新日期：1998-08-21 00:00:00

abstract：:The effects of progesterone, dehydroepiandrosterone sulfate and 17beta-estradiol on the synthesis and degradation of hyaluronate were investigated using human uterine cervix fibroblasts. The cells were incubated with [3H]glucosamine in the presence of the hormones and then [3H]hyaluronate was isolated from the medium....

journal_title：FEBS letters

authors： Tanaka K,Nakamura T,Takagaki K,Funahashi M,Saito Y,Endo M

更新日期：1997-02-03 00:00:00

abstract：:We have investigated the availability of zinc in the periplasmic space of Escherichia coli using a mutant Cu,Zn superoxide dismutase whose dimerization is triggered by zinc binding. This mutant enzyme accumulates in the monomeric form when wild type cells are grown in minimal medium, but assembles in the dimeric form ...

journal_title：FEBS letters

authors： Berducci G,Mazzetti AP,Rotilio G,Battistoni A

更新日期：2004-07-02 00:00:00

abstract：:We previously showed that autocrine tumor necrosis factor (TNF) production in the TNF-sensitive L929sA fibrosarcoma cell line induced TNF resistance, which is correlated with downmodulation of both TNF receptors on the cell surface. We now analyzed whether autocrine TNF production also interfered with intracellular TN...

journal_title：FEBS letters

authors： Decoster E,Vandevoorde V,Beyaert R,Haegeman G,Fiers W

更新日期：1997-10-20 00:00:00

abstract：:F-box/LRR-repeat protein 2 (FBXL2), a component of Skp-Cullin-F box (SCF) ubiquitin E3 ligase, has been shown to inhibit tumorigenesis by targeting and ubiquitinating several oncoproteins. However, its role in gastric cancer remains poorly understood. Here, by tandem mass spectrometry, we show that FBXL2 interacts wit...

journal_title：FEBS letters

authors： Li LQ,Pan D,Chen H,Zhang L,Xie WJ

更新日期：2016-02-01 00:00:00

abstract：:Prolonged incubation of membrane fragments containing homogeneous (Na+ + K+)-ATPase with Mg2+, K+ and VO-3 at 4 degrees C resulted in formation of two-dimensional crystals of this enzyme with unit cell parameters: a = 66 A, b = 118 A, gamma = 108 degrees. The crystals correspond to the two-sided plane group p21. By co...

journal_title：FEBS letters

authors： Ovchinnikov YuA,Demin VV,Barnakov AN,Kuzin AP,Lunev AV,Modyanov NN,Dzhandzhugazyan KN

更新日期：1985-10-07 00:00:00

abstract：:It is increasingly clear that microRNAs play a crucial role in tumorigenesis. Recently, emerging evidence suggested that miR-26a is aberrantly expressed in tumor tissues. In our study, frequent down-regulation of miR-26a was observed in 10 human bladder cancer tissues. Forced expression of miR-26a in the bladder cance...

journal_title：FEBS letters

authors： Lin Y,Chen H,Hu Z,Mao Y,Xu X,Zhu Y,Xu X,Wu J,Li S,Mao Q,Zheng X,Xie L

更新日期：2013-08-02 00:00:00

abstract：:Two hexokinases were characterized in Schizosaccharomyces pombe: hexokinase 1, with a low phosphorylation coefficient on glucose (Km 8.5 mM) and hexokinase 2, a kinetically conventional hexokinase. Genes hxk1+ and hxk2+ encoding these enzymes were cloned and sequenced. Disruption of hxk1+ had no effect on growth but d...

journal_title：FEBS letters

authors： Petit T,Blázquez MA,Gancedo C

更新日期：1996-01-08 00:00:00

abstract：:The 500 MHz 1H NMR spectrum of a 68-residue peptide, encompassing the rat thyroid transcription factor 1 homeodomain (TTF-1 HD), was fully assigned using standard 2D NMR methodology. The secondary structure elements and their spatial organization were determined and led to a structure very similar to that previously d...

journal_title：FEBS letters

authors： Viglino P,Fogolari F,Formisano S,Bortolotti N,Damante G,Di Lauro R,Esposito G

更新日期：1993-12-28 00:00:00

abstract：:Increases in choline containing metabolites have been associated with a number of disorders, including malignant cell growth. In this study, high resolution magic angle spinning (1)H nuclear magnetic resonance spectroscopy was employed to monitor metabolite changes during cell transfection, and an increase in phosphoc...

journal_title：FEBS letters

authors： Griffin JL,Mann CJ,Scott J,Shoulders CC,Nicholson JK

更新日期：2001-12-07 00:00:00

abstract：:The freshwater ciliate Tetrahymena pyriformis is an ubiquitous organism that is present in all aquatic ecosystems. This protozoan showed a clear resistance against some polycyclic aromatic hydrocarbons which can be attributed to an efflux pump probably of the multidrug resistance (MDR) type. Immunocytochemical detecti...

journal_title：FEBS letters

authors： Bamdad M,Brousseau P,Denizeau F

更新日期：1999-08-13 00:00:00

abstract：:Signaling via G-protein coupled receptors is initiated by receptor-catalyzed nucleotide exchange on Galpha subunits normally bound to GDP and Gbetagamma. Activated Galpha . GTP then regulates effectors such as adenylyl cyclase. Except for Gbetagamma, no known regulators bind the adenylyl cyclase-stimulatory subunit Ga...

journal_title：FEBS letters

authors： Johnston CA,Ramer JK,Blaesius R,Fredericks Z,Watts VJ,Siderovski DP

更新日期：2005-10-24 00:00:00

abstract：:The hemoregulatory peptide PyroGlu-Glu-Asp-Cys-Lys (HP5b), which inhibits myelopoietic colony formation in vitro, is shown to be a sequence motif which is also part of the effector domain of Gi alpha proteins. Out of 8 synthetic peptides with sequence variations of HP5b, those with the closest similarity to the Gi alp...

journal_title：FEBS letters

authors： Laerum OD,Frostad S,Tøn HI,Kamp D

更新日期：1990-08-20 00:00:00

abstract：:Acylaminoacyl peptidase is a member of the prolyl oligopeptidase family. Amino acid sequence alignment suggests that the stabilization of the tetrahedral intermediate should be mediated by His507 rather than by a tyrosine residue found in the other family members of this serine peptidase group. The pH dependence of k(...

journal_title：FEBS letters

authors： Kiss AL,Szeltner Z,Fülöp V,Polgár L

更新日期：2004-07-30 00:00:00

abstract：:Eukaryotic nuclear RNA binding proteins share a common sequence motif thought to be implicated in RNA binding. One of the two domains present in A1 hnRNP protein, has been modelled by homology in order to make a prediction of the main features of the RNA binding site. Acylphosphatase (EC 3.6.1.7) was selected as templ...

journal_title：FEBS letters

authors： Ghetti A,Bolognesi M,Cobianchi F,Morandi C

更新日期：1990-12-17 00:00:00

abstract：:ADP-forming acetyl-CoA synthetase (ACD) catalyzes the interconversion of acetyl-CoA and acetate. The related succinyl-CoA synthetase follows a three-step mechanism involving a single phosphoenzyme, but a novel four-step mechanism with two phosphoenzyme intermediates was proposed for Pyrococcus ACD. Characterization of...

journal_title：FEBS letters

authors： Jones CP,Khan K,Ingram-Smith C

更新日期：2017-02-01 00:00:00

abstract：:Two-dimensional crystalline arrays of annexin IV were generated by interaction of the purified protein with a phospholipid monolayer. Image analysis of electron micrographs of the protein crystals, which diffracted to 3.5 nm respectively, revealed p6 and p3 symmetry. Annexin IV gave two crystal forms with unit cells o...

journal_title：FEBS letters

authors： Newman RH,Leonard K,Crumpton MJ

更新日期：1991-02-11 00:00:00

abstract：:Several protein kinase C (PKC) isozymes were analyzed by immunoblot and immunocytochemistry in cultures of hippocampal neurones at several stages of differentiation. Our findings reveal the existence of two distinct patterns of expression. Firstly, conventional PKC isozymes alpha, beta and gamma, that are expressed at...

journal_title：FEBS letters

authors： Tejero-Díez P,Rodríguez-Sánchez P,Díez-Guerra FJ

更新日期：1995-04-24 00:00:00

abstract：:Meprin α and β, members of the astacin family of zinc metalloproteinases, are unique plasma membrane and secreted proteases known to cleave a wide range of biological substrates involved in inflammation, cancer and fibrosis. In this study, we identified proMMP-9 as a novel substrate and show that aminoterminal meprin-...

journal_title：FEBS letters

authors： Geurts N,Becker-Pauly C,Martens E,Proost P,Van den Steen PE,Stöcker W,Opdenakker G

更新日期：2012-12-14 00:00:00

abstract：:Piriprost and nordihydroguiaretic acid (NDGA), specific inhibitors of arachidonate lipoxygenase, inhibited phytohaemagglutinin (PHA)-stimulated breakdown of inositol lipids in human T lymphocytes. The dual inhibitors eicosatetraynoic acid (ETYA) and BW 755C, which inhibit both lipoxygenase and cyclooxygenase, also had...

journal_title：FEBS letters

authors： Mire-Sluis AR,Cox CA,Hoffbrand AV,Wickremasinghe RG

更新日期：1989-11-20 00:00:00

abstract：:Limb girdle muscular dystrophy type 2A is linked to a skeletal muscle-specific calpain isoform known as p94. Isolation of the intact 94-kDa enzyme has been difficult to achieve due to its rapid autolysis, and uncertainty has arisen over its Ca2+-dependence for activity. We have expressed a C-terminally truncated form ...

journal_title：FEBS letters

authors： Rey MA,Davies PL

更新日期：2002-12-18 00:00:00

abstract：:The diffusion of fluorescein isothiocyanate-labelled dextran molecules in suspensions of centrifugally, tightly packed, erythrocyte ghosts was measured by fluorescence recovery after photobleaching. In comparison with diffusion in aqueous solution, the diffusion coefficients for probe molecules of varying size were ab...

journal_title：FEBS letters

authors： Järnefelt J,Laurent T,Rigler R

更新日期：1988-12-19 00:00:00

abstract：:In order to investigate oxysterol-mediated effects on the biliary system, we studied the effects of cholestan-3beta,5alpha,6beta-triol (TriolC) and 7-ketocholesterol (7KC) on gallbladder epithelial cells. We compared their cell proliferation effects in cultured dog gallbladder epithelial cells (DGBE) to their effects ...

journal_title：FEBS letters

authors： Yoshida T,Klinkspoor JH,Kuver R,Wrenn SP,Kaler EW,Lee SP

更新日期：2000-07-28 00:00:00

abstract：:We have purified and partially sequenced two proteins from Xenopus laevis previtellogenic oocytes, belonging to messenger ribonucleoprotein particles (mRNPs). The purification procedure rests on the thermostability of these proteins, which remain soluble after heating the cell extracts at 80 degrees C. The thermostabl...

journal_title：FEBS letters

authors： Deschamps S,Viel A,Denis H,le Maire M

更新日期：1991-04-22 00:00:00

abstract：:The complete amino acid sequence of prostaglandin endoperoxide synthase from sheep vesicular gland has been deduced by cloning and sequence analysis of DNA complementary to its messenger RNA. The results were confirmed by digestion of the enzyme with carboxypeptidase Y and by automated Edman degradation of the intact ...

journal_title：FEBS letters

authors： Yokoyama C,Takai T,Tanabe T

更新日期：1988-04-25 00:00:00

abstract：:A possible interaction between tumor necrosis factor-alpha (TNF) and other cytokines/growth factors in stimulating the production of nerve growth factor (NGF) in Swiss 3T3 cells was studied. TNF's stimulatory activity on fibroblast NGF production was synergized by interleukin-1 alpha (IL-1 alpha), IL-1 beta and interf...

journal_title：FEBS letters

authors： Hattori A,Iwasaki S,Murase K,Tsujimoto M,Sato M,Hayashi K,Kohno M

更新日期：1994-03-07 00:00:00

abstract：:Elongation factor EF-Tu from Escherichia coli was labelled with N-[14C]tosyl-L-phenylalanylchloromethane, digested with trypsin and the peptides obtained separated by HPLC. The only radioactive peak recovered corresponded to tryptic peptide containing residues 75-98. Sequencing of the peptide by automated Edman degrad...

journal_title：FEBS letters

authors： Jonák J,Petersen TE,Clark BF,Rychlík I

更新日期：1982-12-27 00:00:00

abstract：:cAMP levels in Paramecium increased dose dependently after a step increase of [Ca] or [Sr] in the incubation, provided K was present. Two mM Ca or Sr tripled cAMP concentrations within 3 s and induced an increase in forward swimming speed. The increase in cAMP formation was strictly dependent on the Donnan ratio [K]: ...

journal_title：FEBS letters

authors： Schultz JE,Grünemund R,von Hirschhausen R,Schönefeld U

更新日期：1984-02-13 00:00:00