A comparison and analysis of the toxicity and receptor binding properties of Bacillus thuringiensis CryIC delta-endotoxin on Spodoptera littoralis and Bombyx mori.

abstract：:In the mouse macrophage-like cell line RAW 264, vacuolar-type (H(+))-ATPase (V-ATPase) inhibitors, bafilomycin A(1) and concanamycin A, increased the level of cyclooxygenase (COX)-2 protein and its mRNA. The V-ATPase inhibitor-induced expression of COX-2 was suppressed by inhibitors of c-jun N-terminal kinase (JNK) an...

journal_title：FEBS letters

authors： Kamachi F,Yanai M,Ban HS,Ishihara K,Hong J,Ohuchi K,Hirasawa N

更新日期：2007-10-02 00:00:00

abstract：:Myeloperoxidase (MPO) is the most abundant protein in neutrophils and plays a central role in microbial killing and inflammatory tissue damage. Because most of the non-steroidal anti-inflammatory drugs and other drugs contain a thiol group, it is necessary to understand how these substrates are oxidized by MPO. We hav...

journal_title：FEBS letters

authors： Burner U,Jantschko W,Obinger C

更新日期：1999-01-29 00:00:00

abstract：:Protamines are polycationic proteins that are widely used for neutralisation of the anticoagulant action of heparin. However, several reports have shown adverse, mast cell-dependent reactions to protamine. The exact mechanism by which protamine causes these adverse effects is not clear. In the present study, the possi...

journal_title：FEBS letters

authors： Pejler G

更新日期：1996-04-01 00:00:00

abstract：:The last enzyme (LytB) of the methylerythritol phosphate pathway for isoprenoid biosynthesis catalyzes the reduction of (E)-4-hydroxy-3-methylbut-2-enyl diphosphate into isopentenyl diphosphate and dimethylallyl diphosphate. This enzyme possesses a dioxygen-sensitive [4Fe-4S] cluster. This prosthetic group was charact...

journal_title：FEBS letters

authors： Wolff M,Seemann M,Tse Sum Bui B,Frapart Y,Tritsch D,Garcia Estrabot A,Rodríguez-Concepción M,Boronat A,Marquet A,Rohmer M

更新日期：2003-04-24 00:00:00

abstract：:We have determined the first de novo position of the secondary quinone QB in the Rhodobacter sphaeroides reaction center (RC) using phases derived by the single wavelength anomalous dispersion method from crystals with selenomethionine substitution. We found that in frozen RC crystals, QB occupies primarily the proxim...

journal_title：FEBS letters

authors： Pokkuluri PR,Laible PD,Crawford AE,Mayfield JF,Yousef MA,Ginell SL,Hanson DK,Schiffer M

更新日期：2004-07-16 00:00:00

abstract：:In this study we used the fungal antibiotic brefeldin A (BFA) to analyze its effect on viral replication. Analysis by electron microscopy demonstrated that no viral particles were observed in cells treated before the onset of viral replication. In the presence of BFA expression of IE2, MCP, pUL104, pUL56 and pUL89 wer...

journal_title：FEBS letters

authors： Kregler O,Schilf R,Lander A,Bannert N,Bogner E

更新日期：2009-04-02 00:00:00

abstract：:Two protein phosphatases of 103 and 29 kDa as determined by gel filtration, were purified from hen oviducts. The 103 -kDa phosphatase was purified 7300-fold to near homogeneity and dissociated into two polypeptides in the presence of SDS. Molecular masses of these polypeptides were estimated to be 60 and 38 kDa by SDS...

journal_title：FEBS letters

authors： Kanayama K,Wada K,Negami A,Yamamura H,Tanabe T

更新日期：1985-05-06 00:00:00

abstract：:Three proteinase inhibitor genes have been identified in the rapeseed (Brassica napus) genome. They are highly homologous to other genes of the mustard inhibitor (MSI) family of proteinase inhibitors characteristic of Cruciferae. In germinating seeds, only the transcript of one gene, coding for a trypsin inhibitor, is...

journal_title：FEBS letters

authors： De Leo F,Volpicella M,Sciancalepore M,Gallerani R,Ceci LR

更新日期：2006-02-06 00:00:00

abstract：:Conformational changes in the extradiscal regions of rhodopsin induced by illumination were investigated by modifying the visual pigment by mild treatment with cyanogen bromide prior to and after light exposure. Light induced an increased yield of cleavage of the Met bond 253-254 and a new cleavage at the Met bond 155...

journal_title：FEBS letters

authors： Pellicone C,Nullans G,Virmaux N

更新日期：1985-02-11 00:00:00

abstract：:Escherichia coli 50 S ribosomal subunits were reconstituted with and without protein L16 present. The latter particles, although active in puromycin reaction, were unable to use CACCA-Phe as an acceptor substrate. We also found that L16 interacts directly with this oligonucleotide and, in the complex with tRNA, protec...

journal_title：FEBS letters

authors： Maimets T,Remme J,Villems R

更新日期：1984-01-23 00:00:00

abstract：:Vesicular stomatitis virus (VSV) is a prototypic virus commonly used in studies of endocytosis and membrane trafficking. One proposed mechanism for VSV entry involves initial fusion with internal vesicles of multivesicular endosomes followed by back-fusion of these vesicles into the cytoplasm. One feature of endosomal...

journal_title：FEBS letters

authors： Roth SL,Whittaker GR

更新日期：2011-03-23 00:00:00

abstract：:A number of human diseases can be linked to aberrations in protein folding which cause an imbalance in protein homeostasis. Molecular chaperones, including heat shock proteins, act to assist protein folding, stability and activity in the cell. Attention has begun to focus on modulating the expression and/or activity o...

journal_title：FEBS letters

authors： Powers MV,Workman P

更新日期：2007-07-31 00:00:00

abstract：:The cleavable prepiece of the precursor to yeast cytochrome c oxidase subunit IV (an imported mitochondrial protein) was attached to the amino-terminus of mouse dihydrofolate reductase (a cytosolic protein) by gene fusion. The resulting fusion protein was imported into the matrix of isolated, energized yeast mitochond...

journal_title：FEBS letters

authors： Hurt EC,Pesold-Hurt B,Schatz G

更新日期：1984-12-10 00:00:00

abstract：:Glutamate uptake by rat hepatocytes in primary monolayer culture was found to be mediated by a Na+-independent and by two Na+-dependent transport systems of high and low affinity. Inhibition studies with cysteate and other model amino acids rules out the participation of the neutral amino acid transport systems A, ASC...

journal_title：FEBS letters

authors： Gebhardt R,Mecke D

更新日期：1983-09-19 00:00:00

abstract：:We have used DNase I footprinting to examine the effect of a novel naphthylquinoline dimer, designed as a triplex-specific bis-intercalator, on the stability of intermolecular DNA triplexes. We find that this compound efficiently promotes triplex formation between the 9-mer oligonucleotide 5'-TTTTTTCTT and its oligopu...

journal_title：FEBS letters

authors： Keppler M,Zegrocka O,Strekowski L,Fox KR

更新日期：1999-03-26 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 complete the amino acid sequence of GTP:AMP phosphotransferase (MgGTP + AMP in equilibrium with MgGDP + ADP) from beef heart mitochondria it was necessary to sequence an intermediate region of about 33 residues after position 102 [(1984) Eur. J. Biochem. 143, 331-339] and find a suitable overlap with the rest of th...

journal_title：FEBS letters

authors： Tomasselli AG,Frank R,Schiltz E

更新日期：1986-07-07 00:00:00

abstract：:alpha-Allenyl putrescine (5,6-heptadiene-1,4-diamine) was designed as a new potential enzyme-activated irreversible inhibitor of ornithine decarboxylase (ODC). This compound, and more specifically its (R)-enantiomer, produced time-dependent inhibitions of E. coli and rat liver ODC. The inhibitions exhibit saturation k...

journal_title：FEBS letters

authors： Danzin C,Casara P

更新日期：1984-09-03 00:00:00

abstract：:Biological activities of five synthetic lipid A analogues (D-glucosamine derivatives) were examined to elucidate the structure required for expression of the biological activities of endotoxin. Proclotting enzyme of horseshoe crab activation, interferon-inducing and tumor necrosis factor-inducing activities were signi...

journal_title：FEBS letters

authors： Matsuura M,Kojima Y,Homma JY,Kubota Y,Yamamoto A,Kiso M,Hasegawa A

更新日期：1984-02-27 00:00:00

abstract：:HslVU is an ATP-dependent protease consisting of two multimeric components, the HslU ATPase and the HslV peptidase. To gain an insight into the role of HslVU in regulation of cell division, the reconstituted enzyme was incubated with SulA, an inhibitor of cell division in Escherichia coli, or its fusion protein with m...

journal_title：FEBS letters

authors： Seong IS,Oh JY,Yoo SJ,Seol JH,Chung CH

更新日期：1999-07-30 00:00:00

abstract：:It is well known that, in rabbits, the allotypes of the b locus carried by the light chains of the IgG molecules cross-react. Nothing similar has been described for the allotypes of the a locus carried by the heavy chains of the IgG molecules. This paper describes a cross-reaction between the rabbit allotypic markers ...

journal_title：FEBS letters

authors： Renneboog-Squilbin C

更新日期：1969-02-01 00:00:00

abstract：:SP-40,40 is a two-chain serum protein which acts in vitro as a potent inhibitor of the assembly of the membrane attack complex of human complement. It contains 10 cysteine residues, the numbers and locations of which are conserved in several mammalian species. Evidence is presented that all the cysteine residues are i...

journal_title：FEBS letters

authors： Kirszbaum L,Bozas SE,Walker ID

更新日期：1992-02-03 00:00:00

abstract：:Several approaches have been used to identify the factors involved in mRNA splicing. None of them, however, comprises a straightforward reversible method for inhibiting the second step of splicing using an external reagent other than a chelator. This investigation demonstrates that the addition of boric acid to an in ...

journal_title：FEBS letters

authors： Shomron N,Ast G

更新日期：2003-09-25 00:00:00

abstract：:ATP synthesis rate, measured as the variation in external Pi concentration, varied as a linear function of either delta mu H+ or delta Gpin, in such a manner that the delta Gpin/delta mu H+ ratio increased while VATP increased. We also observed a linear dependence of the flux control coefficient of the Pi carrier on...

journal_title：FEBS letters

authors： Beauvoit B,Rigoulet M,Guerin B

更新日期：1989-02-27 00:00:00

abstract：:The STARD1 subfamily of 'START' lipid trafficking proteins can reduce macrophage lipid content and inflammatory status (STARD1; StAR), and traffic cholesterol from endosomes (STARD3/MLN64). During macrophage differentiation, STARD1 mRNA and protein increase with sterol content, while the reverse is true for STARD3. St...

journal_title：FEBS letters

authors： Borthwick F,Taylor JM,Bartholomew C,Graham A

更新日期：2009-04-02 00:00:00

abstract：:Evidence is presented here that cupric ions play a part in the natural spinning of Bombyx mori silk. Proton induced X-ray emission studies revealed that the copper content increased from the posterior part to the anterior part of silk gland, and then further increased in the silk fiber. Spectrophotometric analysis dem...

journal_title：FEBS letters

authors： Zhou L,Chen X,Shao Z,Zhou P,Knight DP,Vollrath F

更新日期：2003-11-20 00:00:00

abstract：:2-( Dimethylaminostyryl )-l-methyl pyridinium, a fluorescent indicator of mitochondrial membrane potential, is accumulated up to 400-fold by intact, isolated brown adipocytes from cold-adapted guinea pigs. The indicator can be optically localized within the in situ mitochondria. Ionophores which would be predicted to ...

journal_title：FEBS letters

authors： Rafael J,Nicholls DG

更新日期：1984-05-07 00:00:00

abstract：:The key mechanism in prion disease is the conversion of cellular prion protein into an altered, pathogenic conformation, in which cellular mechanisms play a poorly understood role. Both forms of prion protein are lipid-anchored and reside in rafts that appear to protect the native conformation against conversion. Neur...

journal_title：FEBS letters

authors： Morris RJ,Parkyn CJ,Jen A

更新日期：2006-10-09 00:00:00

abstract：:Nuclear ionic channels (NICs) represent ubiquitous structures of living cells, although little is known about their functional properties and encoding genes. To characterize NICs, liver nuclear membrane vesicles were reconstituted into either planar lipid bilayers or proteoliposomes. Reconstitution of nuclear envelope...

journal_title：FEBS letters

authors： Guihard G,Proteau S,Payet MD,Escande D,Rousseau E

更新日期：2000-07-07 00:00:00

abstract：:Photo-oxidized low-density lipoprotein is cytotoxic to bovine aortic endothelial cells in a concentration-dependent manner. Total cell killing occurs at a concentration of 600 mumol/l lipid hydroperoxide (LOOH). Selenium deficiency enhances the toxicity of LOOH such that 300 mumol/l LOOH is cytotoxic. This toxicity is...

journal_title：FEBS letters

authors： Struck AT,Hogg N,Thomas JP,Kalyanaraman B

更新日期：1995-03-20 00:00:00