Concentration-dependent modulation of basic fibroblast growth factor action on multiplication and locomotion of human teratocarcinoma cells.

abstract：:Epichloë festucae Fl1 in association with Lolium perenne synthesizes a diverse range of indole-diterpene bioprotective metabolites, including lolitrem B, a potent tremorgen. The ltm genes responsible for the synthesis of these metabolites are organized in three clusters at a single sub-telomeric locus in the genome of...

journal_title：FEBS letters

authors： Saikia S,Takemoto D,Tapper BA,Lane GA,Fraser K,Scott B

更新日期：2012-07-30 00:00:00

abstract：:Moloney murine leukemia virus reverse transcriptase (RT) selectively uses deoxyribonucleotides over ribonucleotides (rNTPs) as substrates. Substitution of F155 with valine (F155V) was previously found to increase the enzyme's affinity for rNTPs, though without affecting the V(max) for catalysis, and thereby conferred ...

journal_title：FEBS letters

authors： Liu S,Goff SP,Gao G

更新日期：2006-02-20 00:00:00

abstract：:We here cloned a cDNA encoding STAM2, a new member of the STAM family, which contains an SH3 domain and ITAM. STAM2 like STAM1 is associated with Jak2 and Jak3, and involved in the signaling for DNA synthesis and c-myc induction mediated by IL-2 and GM-CSF. Co-expression of the SH3 deletion mutants of STAM1 and STAM2 ...

journal_title：FEBS letters

authors： Endo K,Takeshita T,Kasai H,Sasaki Y,Tanaka N,Asao H,Kikuchi K,Yamada M,Chenb M,O'Shea JJ,Sugamura K

更新日期：2000-07-14 00:00:00

abstract：:The fluorescence intensity of the Ca2+,Mg2(+)-ATPase protein of rabbit skeletal sarcoplasmic reticulum that incorporated about 2 mol of 7-chloro-4-nitrobenzo-2-oxa-1,3-diazole (NBD-Cl) was enhanced at high MgATP concentrations with or without 50 microM calcium. The observed enhancement indicates that the fluorophore, ...

journal_title：FEBS letters

authors： Bailin G,Huang JR

更新日期：1990-01-01 00:00:00

abstract：:The human mutT homolog, hMTH1, suppresses spontaneous mutations by degrading the endogeneous mutagen, 8-hydroxy-dGTP. We previously reported the broad substrate specificity of hMTH1, which also degrades the oxidatively damaged purine nucleotides, 2-hydroxy-dATP, 8-hydroxy-dATP, 2-hydroxy-ATP, and 8-hydroxy-GTP, in add...

journal_title：FEBS letters

authors： Fujikawa K,Yakushiji H,Nakabeppu Y,Suzuki T,Masuda M,Ohshima H,Kasai H

更新日期：2002-02-13 00:00:00

abstract：:The presence of protein kinase C (PKC), a key enzyme in signal transduction, has not been investigated in fungal cells. The phorbol ester TPA, an activator of PKC, may be used as an indicator of the presence and role of PKC in Phycomyces blakesleeanus spores. Activation of spore germination by acetate was prevented by...

journal_title：FEBS letters

authors： Carrillo-Rayas T,Garcia-Soto J,Martinez-Cadena G

更新日期：1988-10-10 00:00:00

abstract：:The effects of temperature on the gamma-aminobutyric acid (GABA) uptake and on the presteady-state and transport-associated currents of the GABA cotransporter, rat gamma-aminobutyric acid transporter 1 (rGAT1), have been studied using heterologous oocyte expression and voltage-clamp. Increasing temperature from 15 to ...

journal_title：FEBS letters

authors： Binda F,Bossi E,Giovannardi S,Forlani G,Peres A

更新日期：2002-02-13 00:00:00

abstract：:(7-methoxycoumarin-4-yl)Acetyl-Pro-Leu-Gly-Leu-(3-[2,4-dinitrophenyl]-L- 2,3-diaminopropionyl)-Ala-Arg-NH2 (Mca-Pro-Leu-Gly-Leu-Dpa-Ala-Arg-NH2) has been synthesised as a fluorogenic substrate for the matrix metalloproteinases. The highly fluorescent 7-methoxycoumarin group is efficiently quenched by energy transfer t...

journal_title：FEBS letters

authors： Knight CG,Willenbrock F,Murphy G

更新日期：1992-01-27 00:00:00

abstract：:To understand the role of nitric oxide (NO) in controlling the specific DNA-binding activities of transcriptional factors, we investigated the in vitro effect of the NO-donor sodium nitroprusside (SNP) on the AP-1 activity of cultured mouse cerebellar granule cells. A gel-mobility assay showed that SNP inhibited AP-1 ...

journal_title：FEBS letters

authors： Tabuchi A,Sano K,Oh E,Tsuchiya T,Tsuda M

更新日期：1994-08-29 00:00:00

abstract：:Highly purified mitochondria from potato (Solanum tuberosum L. cv. Bintje) tubers were subfractionated into a matrix fraction, an inner membrane fraction and an outer membrane fraction with minimal cross-contamination. When the matrix and inner membrane fractions were incubated with [gamma-32P]ATP only one and three p...

journal_title：FEBS letters

authors： Pical C,Fredlund KM,Petit PX,Sommarin M,Møller IM

更新日期：1993-12-27 00:00:00

abstract：:Polypeptides rich in glutamic acid are strong inhibitors purified from isolated nuclei of Xenopus laevis oocytes of casein kinase II. The presence of tyrosine in these peptides greatly enhances their inhibitory capacity. Using casein as a substrate, copolyglu:tyr (4:1) has an I50 value of 20 nM, 250 fold lower than th...

journal_title：FEBS letters

authors： Tellez R,Gatica M,Allende CC,Allende JE

更新日期：1990-06-04 00:00:00

abstract：:Vibrio cholerae causes the cholera disease through secretion of cholera toxin (CT), resulting in severe diarrhoea by modulation of membrane transporters in the intestinal epithelium. Genes encoding membrane-spanning transporters identified as being differentially expressed during cholera disease in a microarray screen...

journal_title：FEBS letters

authors： Flach CF,Qadri F,Bhuiyan TR,Alam NH,Jennische E,Holmgren J,Lönnroth I

更新日期：2007-07-10 00:00:00

abstract：:A 122 nt uridine-rich sequence (URE) in the Na(+)/glucose cotransporter (SGLT1) mRNA 3'-untranslated region is critical for cAMP-dependent message stabilization. Its function was investigated in LLC-PK(1) cells stably expressing beta-globin reporter transcripts. Insertion of the SGLT1 URE downstream from an unrelated ...

journal_title：FEBS letters

authors： Loflin P,Lever JE

更新日期：2001-03-16 00:00:00

abstract：:To identify suitable promoters for expressing exogenous genes in arthritic joints, the constitutive, simian virus 40 (SV 40) and IL-1 or metal inducible, human stromelysin and metallothionein (MT) gene promoters were tested for their activity in chondrocytes and synovial fibroblasts. Transient transfection with plasmi...

journal_title：FEBS letters

authors： Su S,Gedamu L,Dehnade F,Zafarullah M

更新日期：1996-10-21 00:00:00

abstract：:Transport of the precursor for carbamoyl-phosphate synthetase I into mitochondria in Reuber hepatoma H-35 cells was inhibited by adding monensin or nigericin to the culture medium at a concentration of 0.5 microM, and the enzyme precursor accumulated, mainly in the cytosolic fraction. Accumulated precursor was degrade...

journal_title：FEBS letters

authors： Kitagawa Y,Murakami A,Sugimoto E

更新日期：1984-01-02 00:00:00

abstract：:The (beta alpha)(8)-barrel is the most frequent and most versatile fold among enzymes [Höcker et al., Curr. Opin. Biotechnol. 12 (2001) 376-381; Wierenga, FEBS Lett. 492 (2001) 193-198]. Structural and functional evidence suggests that (beta alpha)(8)-barrels evolved from an ancestral half-barrel, which consisted of f...

journal_title：FEBS letters

authors： Höcker B,Schmidt S,Sterner R

更新日期：2002-01-16 00:00:00

abstract：:The bacteriophytochrome Agp1 was reconstituted with a locked 5Zs-biliverdin in which the C(4)=C(5) and C(5)-C(6) bonds of the methine bridge between rings A and B are fixed in the Z and syn configuration/conformation, respectively. In Agp1-5Zs the photoconversion proceeds via the Lumi-R intermediate to Meta-R(A), but ...

journal_title：FEBS letters

authors： Seibeck S,Borucki B,Otto H,Inomata K,Khawn H,Kinoshita H,Michael N,Lamparter T,Heyn MP

更新日期：2007-11-27 00:00:00

abstract：:Ribosomes are ribozymes exerting substrate positioning and promoting substrate-mediated catalysis. Peptide-bonds are formed within a symmetrical region, thus suggesting that ribosomes evolved by gene-fusion. Remote interactions dominate substrate positioning at stereochemistry suitable for peptide-bond formation and e...

journal_title：FEBS letters

authors： Baram D,Yonath A

更新日期：2005-02-07 00:00:00

abstract：:A selective PKC inhibitor, UCN-01, was shown to exhibit anti-tumor activity in vitro and in vivo. We investigated UCN-01 with respect to isozyme-specific PKC inhibition using purified recombinant or rabbit brain PKC isozymes, cPKC alpha, beta and gamma, nPKC delta, epsilon and eta, and a PKC zeta. Of the PKC isozymes ...

journal_title：FEBS letters

authors： Mizuno K,Noda K,Ueda Y,Hanaki H,Saido TC,Ikuta T,Kuroki T,Tamaoki T,Hirai S,Osada S

更新日期：1995-02-13 00:00:00

abstract：:Interleukin-8 (neutrophil-activating factor; NAP-1) has been crystallized by the vapour diffusion technique to give single crystals suitable for three-dimensional structural study at a resolution higher than 2.4 A. The crystals belong to the space group P3(1)21 or P3(2)21 and have unit cell dimensions a = b = 40.9 A, ...

journal_title：FEBS letters

authors： Auer M,Kallen J,Schleischitz S,Walkinshaw MD,Wasserbauer E,Ehn G,Lindley IJ

更新日期：1990-06-04 00:00:00

abstract：:The cellulases cellobiohydrolase 1 (CBH 1) and endoglucanase 1 (EG 1) from the fungus Trichoderma reesei are closely related with 40% sequence identity and very similar in structure. In CBH 1 the active site is enclosed by long loops and some antiparallel beta-strands forming a 40 A long tunnel, whereas in EG 1 part o...

journal_title：FEBS letters

authors： Henriksson H,Ståhlberg J,Isaksson R,Pettersson G

更新日期：1996-07-29 00:00:00

abstract：:Bovine alpha 2-antiplasmin (alpha 2AP) has been purified and partially characterized. The amino acid composition is very similar to that of human alpha 2AP, and the N-terminal (23 residues determined) and reactive site loop sequences (42 residues determined) are highly homologous to those of the human protein. Compare...

journal_title：FEBS letters

authors： Christensen S,Sottrup-Jensen L

更新日期：1992-11-02 00:00:00

abstract：:Culturing human fibroblasts in a three-dimensional collagen matrix leads to a reduction of collagen I by more than 90%, both on the level of mRNA steady-state as well as protein. In order to differentiate changes in de novo transcription and posttranscriptional control, nuclear run on assays and pulse/chase experiment...

journal_title：FEBS letters

authors： Eckes B,Mauch C,Hüppe G,Krieg T

更新日期：1993-03-01 00:00:00

abstract：:Zinc cations at concentrations of 0.2 mM and greater catalyzed specific phosphorylation, by ATP, of two membrane-associated proteins from rat hippocampus. These proteins, corresponding to molecular weights of 60 and 49 kDa, were phosphorylated primarily at tyrosine residues. The 60-kDa protein was identified as p60c-s...

journal_title：FEBS letters

authors： Vener AV,Loeb J

更新日期：1992-06-01 00:00:00

abstract：:Rat soleus muscle strips cultured for 24 h in medium 199 were well preserved in terms of electron microscopy; ATP and creatine phosphate concentrations; rates of glucose utilization, glycogen and protein synthesis, and effects of insulin thereon. Culture led to modest changes in fluid spaces and intracellular (K+); in...

journal_title：FEBS letters

authors： Stace PB,Marchington DR,Kerbey AL,Randle PJ

更新日期：1990-10-29 00:00:00

abstract：:Members of the connexin family differ most in their carboxy-termini, both with respect to sequence and length. In order to assess the contribution of this region to channel function, a series of carboxy-terminal deletion mutants were tested in the paired-oocyte expression system. Connexin-32 can be truncated by 64 ami...

journal_title：FEBS letters

authors： Rabadan-Diehl C,Dahl G,Werner R

更新日期：1994-08-29 00:00:00

abstract：:The effect of platelet-activating factor (PAF) on polyphosphoinositide metabolism and 45Ca2+ efflux was examined in a vascular smooth muscle cell line (A7r5). PAF stimulated a rapid but transient production of inositol trisphosphate and inositol bisphosphate which, in the presence of lithium, resulted in an accumulati...

journal_title：FEBS letters

authors： Doyle VM,Creba JA,Rüegg UT

更新日期：1986-03-03 00:00:00

abstract：:PA28, a 200 kDa activator of 20S proteasomes, was purified from human placenta and was gel electrophoretically resolved into two different subunits, alpha and beta. In reconstitution experiments, alpha-subunits alone were found to re-associate forming homooligomers with an M(r) of about 200 kDa, which elicit a stimula...

journal_title：FEBS letters

authors： Kuehn L,Dahlmann B

更新日期：1996-09-30 00:00:00

abstract：:Rats bearing the Yoshida AH-130 ascites hepatoma showed an increased expression of both uncoupling protein-2 (UCP2) (194%) and UCP3 (189%) mRNA levels in skeletal muscle 7 days after tumour inoculation. Interestingly, an even greater increase was observed in mRNA for both UCP2 (278%) and UCP3 (797%) in the pair-fed an...

journal_title：FEBS letters

authors： Sanchís D,Busquets S,Alvarez B,Ricquier D,López-Soriano FJ,Argilés JM

更新日期：1998-10-09 00:00:00

abstract：:The effect of removal of Ca2+ bound to thrombospondin (TSP) on the protein structure in solution has been investigated using ESR spin-label techniques. A maleimide spin label was selectively attached to the free thiol group presumably near the carboxyl-terminal domain in which Ca2+-binding sites are situated. The ESR ...

journal_title：FEBS letters

authors： Slane JM,Mosher DF,Lai CS

更新日期：1988-03-14 00:00:00