Selective inhibition of 5-lipoxygenase by natural compounds isolated from Chinese plants, Artemisia rubripes Nakai.

abstract：:Platelet aggregation is accompanied by the tyrosine phosphorylation of several proteins including syk. However, some of these proteins are not identified. Recent studies showed that LAT is a syk substrate and is tyrosine phosphorylated during T cell stimulation. In this study, we demonstrated that LAT is present in pl...

journal_title：FEBS letters

authors： Sarkar S

更新日期：1998-12-28 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

abstract：:The Escherichia coli signal transduction protein PII, product of the glnB gene, was overproduced and purified. The predicted molecular weight of the protein based on the correct nucleotide sequence is 12,427 and is very close to the value 12,435 obtained by matrix-assisted laser desorption mass spectrometry. Hexagonal...

journal_title：FEBS letters

authors： Vasudevan SG,Gedye C,Dixon NE,Cheah E,Carr PD,Suffolk PM,Jeffrey PD,Ollis DL

更新日期：1994-01-17 00:00:00

abstract：:Inositol 1,4,5-trisphosphate (1,4,5-InsP3) was perfused into rat dorsal root ganglion (DRG) neurons by whole-cell patch-clamp electrodes, while measuring the membrane potential. This operation evoked a transient (2-3 min) membrane hyperpolarization of about -15 mV (from -42 mV) followed by a depolarization. The membra...

journal_title：FEBS letters

authors： Wang Z,Ypey DL,Van Duijn B

更新日期：1992-06-15 00:00:00

abstract：:The octapeptide Ala-Ser-Thr-Thr-Thr-Asn-Tyr-Thr (peptide T) and two structural analogs are potent agonists of human monocyte chemotaxis, evincing identical rank potency orders as was previously shown for their inhibition of human immunodeficiency virus (HIV) envelope binding and T cell infectivity. Chemotactic activit...

journal_title：FEBS letters

authors： Ruff MR,Martin BM,Ginns EI,Farrar WL,Pert CB

更新日期：1987-01-19 00:00:00

abstract：:The yeast ERG4 gene encodes sterol C-24(28) reductase which catalyzes the final step in the biosynthesis of ergosterol. Deletion of ERG4 resulted in a complete lack of ergosterol and accumulation of the precursor ergosta-5,7,22,24(28)-tetraen-3beta-ol. An erg4 mutant strain exhibited pleiotropic defects such as hypers...

journal_title：FEBS letters

authors： Zweytick D,Hrastnik C,Kohlwein SD,Daum G

更新日期：2000-03-17 00:00:00

abstract：:The role of protein kinase C (PKC) in cellular regulation of L-type Ca2+ channels was investigated in human umbilical vein smooth muscle. Activation of PKC, by low concentrations (< 30 nM) of 12-O-tetradecanoyl-phorbol-13-acetate (TPA) caused inhibition of Ca2+ channels, while higher concentrations of TPA (> 100 nM) e...

journal_title：FEBS letters

authors： Schuhmann K,Groschner K

更新日期：1994-03-21 00:00:00

abstract：:G-quadruplex structures in the 5' UTR of mRNAs have been shown to suppress translation. However, all experiments published so far made use of artificial reporter systems. Here, we investigate for the first time the biological effects of the genomic disruption of a G-quadruplex by CRISPR/Cas9. In melanoma cells lacking...

journal_title：FEBS letters

authors： Serikawa T,Eberle J,Kurreck J

更新日期：2017-11-01 00:00:00

abstract：:The function of the domains of Trichoderma reesei endoglucanase I (EGI) has been studied. Truncated EGI proteins were expressed from the 3'-end deleted cDNAs in the yeast Saccharomyces cerevisiae under the control of the ADC1 expression cassette. EGI protein was detected by monoclonal antibody EI-2 and EGI activity as...

journal_title：FEBS letters

authors： Aho S

更新日期：1991-10-07 00:00:00

abstract：:Induction of differentiation in HL-60 and U-937 leukemic cell lines, resulted in 1.5-10-fold increase in 45Ca2+ uptake. The increased 45Ca2+ uptake in the differentiating cells was inhibited by verapamil, cromolyn and amiloride. Elevation in Ca2+ uptake in differentiating cells was also demonstrated using the fluoresc...

journal_title：FEBS letters

authors： Rephaeli A,Aviram A,Englender T,Shaklai M

更新日期：1988-08-29 00:00:00

abstract：:Activation of protein kinase C (PKC) in Rat-1 fibroblasts leads to rapid phosphorylation of an 80-kDa protein, a major substrate of PKC. Digitonin-permeabilized cells perfectly supported this early response. Introduction of a PKC pseudosubstrate peptide inhibited 80 kDa phosphorylation with an IC50 of 1 microM, while ...

journal_title：FEBS letters

authors： Eichholtz T,Alblas J,van Overveld M,Moolenaar W,Ploegh H

更新日期：1990-02-12 00:00:00

abstract：:Exposure of HeLa and HL60 cells to sodium arsenite or cadmium chloride led to marked increases in cellular heme oxygenase activity. SDS-polyacrylamide gel electrophoresis of [35S]methionine-labeled cellular proteins indicated that these treatments also resulted in the induction of a 32-kDa protein. Immunoblot analysis...

journal_title：FEBS letters

authors： Taketani S,Kohno H,Yoshinaga T,Tokunaga R

更新日期：1989-03-13 00:00:00

abstract：:Gastrin (G17) and N-carboxymethylgastrin (G17-Gly) have been shown to stimulate the growth of colon cancer cells both in vivo and in vitro. The identity of the receptor mediating these effects is controversial. A recent study demonstrated the presence of a low affinity binding site for G17 and G17-Gly on the DLD-1 hum...

journal_title：FEBS letters

authors： Ahmed S,Budai B,Herédi-Szabó K,Farkas J,Tóth G,Murphy RF,Lovas S

更新日期：2004-01-02 00:00:00

abstract：:The genetic modification of lysozyme was attempted to improve the bactericidal activity against Gram-negative bacteria E. coli. The different lengths of hydrophobic peptides were attached to the C-terminus of the hen egg white lysozyme to investigate the most effective length of the hydrophobic peptides for killing ba...

journal_title：FEBS letters

authors： Arima H,Ibrahim HR,Kinoshita T,Kato A

更新日期：1997-09-22 00:00:00

abstract：:Modelling the amino acid sequence of NAD(+)-linked 15-hydroxyprostaglandin dehydrogenase into the three-dimensional structure of 3 alpha/20 beta-hydroxysteroid dehydrogenase shows that these two enzymes, as well as the NADP(+)-linked prostaglandin dehydrogenase (identical to carbonyl reductase) have similar conformati...

journal_title：FEBS letters

authors： Krook M,Ghosh D,Duax W,Jörnvall H

更新日期：1993-05-10 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 36 kDa fragment of actin molecule obtained with the protease from E. coli A2 strain [(1988) FEBS Lett. 228, 172] was shown to begin with Val-43 and retain the COOH-terminal amino acid residues of the parent molecule. The E. coli protease split actin preserves the NH2-terminal part of the polypeptide chain as well ...

journal_title：FEBS letters

authors： Khaitlina SYu,Collins JH,Kuznetsova IM,Pershina VP,Synakevich IG,Turoverov KK,Usmanova AM

更新日期：1991-02-11 00:00:00

abstract：:The formation of cytoplasmic inclusion bodies by Escherichia coli overproducing Clostridium thermocellum endoglucanase D (EGD) was investigated. EGD was found in inclusion bodies as a 68 kDa form, whereas the size of the cytoplasmic form was 65 kDa. Upon solubilization with urea followed by dialysis, the 68 kDa form w...

journal_title：FEBS letters

authors： Tokatlidis K,Dhurjati P,Millet J,Béguin P,Aubert JP

更新日期：1991-04-22 00:00:00

abstract：:Blood reprogramming, in which induced pluripotent stem cells (iPSCs) are derived from haematopoietic lineages, has rapidly advanced over the past decade. Since the first report using human blood, haematopoietic cell types from various sources, such as the peripheral bone marrow and cord blood, have been successfully r...

journal_title：FEBS letters

authors： Chen Y,Yi Y,Xu J,Chan WK,Loh YH

更新日期：2019-12-01 00:00:00

abstract：:In this report, we show for the first time that ceramide-1-phosphate (C1P) stimulates the phosphatidylinositol 3-kinase (PI3-K)/protein kinase B (PKB) pathway, which is a major mechanism whereby growth factors promote cell survival. Also, C1P induced IkappaB phosphorylation, and enhanced the DNA binding activity of th...

journal_title：FEBS letters

authors： Gómez-Muñoz A,Kong JY,Parhar K,Wang SW,Gangoiti P,González M,Eivemark S,Salh B,Duronio V,Steinbrecher UP

更新日期：2005-07-04 00:00:00

abstract：:The family of lipases (triacylglycerol-acyl-hydrolases EC 3.1.1.3) constitutes an interesting class of enzymes because of their ability to interact with lipid-water interfaces, their wide range of substrate specificities, and their potential industrial applications. Here we report the first crystal structure of a bact...

journal_title：FEBS letters

authors： Noble ME,Cleasby A,Johnson LN,Egmond MR,Frenken LG

更新日期：1993-09-27 00:00:00

abstract：:pMNEI, a single chain sweet protein related to monellin, has been studied by means of 1H NMR at 500 MHz. A partial sequential assignment performed by means of the MCD method allowed the determination of the secondary structure of a large portion of the beta-sheet of pMNEI that contains a likely 'sweet finger': the loo...

journal_title：FEBS letters

authors： Tancredi T,Iijima H,Saviano G,Amodeo P,Temussi PA

更新日期：1992-09-21 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：: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：:The role of Arp3 in mouse development was investigated utilizing a gene trap mutation in the Arp3 gene. Heterozygous Arp3(WT/GT) mice are normal, however, homozygous Arp3(GT/GT) embryos die at blastocyst stage. Earlier embryonic stages appear unaffected by the mutation, probably due to maternal Arp3 protein. Mutant bl...

journal_title：FEBS letters

authors： Vauti F,Prochnow BR,Freese E,Ramasamy SK,Ruiz P,Arnold HH

更新日期：2007-12-11 00:00:00

abstract：:3-(4'-Methyl-1'-naphthyl)-propionic acid, 1',4'-endoperoxide (NEPO) provides singlet state of oxygen (1O2, 1delta g) at 37 degrees C in sodium phosphate buffer (pH 7.2), acetate buffer (pH 4.5), methanol or chloroform, through the retro-Diels-Alder reaction. The total amount of 1O2 generated by NEPO was calculated usi...

journal_title：FEBS letters

authors： Nakano M,Kambayashi Y,Tatsuzawa H,Komiyama T,Fujimori K

更新日期：1998-07-31 00:00:00

abstract：:Nuclear cap-binding protein (CBP) 80/20-dependent translation (CT) is one of the targets for miRNA-mediated gene silencing. Here, we provide evidence that human argonaute 2 (Ago2) competes with CBP80/20 for cap-association, inhibiting CT and thus nonsense-mediated mRNA decay (NMD), which is tightly coupled to CT. Teth...

journal_title：FEBS letters

authors： Choe J,Cho H,Chi SG,Kim YK

更新日期：2011-09-02 00:00:00

abstract：:Cyclic AMP-mediated phosphorylation of calcium channel subunits was studied in vitro and in vivo in preparations from dog heart. Calcium channels in native cardiac membranes were phosphorylated by cAMP-dependent protein kinase (PKA) solubilized with digitonin and subsequently immunoprecipitated using a polyclonal anti...

journal_title：FEBS letters

authors： Haase H,Karczewski P,Beckert R,Krause EG

更新日期：1993-12-06 00:00:00

abstract：:Exposure of protein kinase C to low concentrations of either N-chlorosuccinimide or H2O2 resulted in rapid and parallel loss of phosphotransferase activity and phorbol ester binding. This oxidative inactivation of protein kinase C also occurred in intact cells exposed to a low concentration of H2O2. With H2O2 treatmen...

journal_title：FEBS letters

authors： Gopalakrishna R,Anderson WB

更新日期：1987-12-10 00:00:00

abstract：:Cultured rat hepatocytes exhibit acid phospholipase A activity. On the basis of product formation from stereospecifically radiolabeled phosphatidylethanolamine substrates, phospholipases A1 and A2 have been identified with optimal activities at pH 4.5. According to subcellular fractionation studies, the acid phospholi...

journal_title：FEBS letters

authors： Kunze H,Löffler BM,Schmidt M

更新日期：1988-08-29 00:00:00