Nucleolar disruption impairs Kaposi's sarcoma-associated herpesvirus ORF57-mediated nuclear export of intronless viral mRNAs.

abstract：:The whole-cell patch-clamp technique was used to measure cell membrane capacitance (Cm) to monitor exocytosis in single-cultured bovine prolactin-secreting cells (lactotrophs) of the anterior pituitary. The cells were dialyzed with solutions containing different concentrations of ionised Ca and non-hydrolyzable GTP an...

journal_title：FEBS letters

authors： Sikdar SK,Zorec R,Brown D,Mason WT

更新日期：1989-08-14 00:00:00

abstract：:For good function, membrane lipids have to be arranged appropriately and be in the correct physical state. In poikilotherms, exposure to cold stress or heat shock can alter membrane properties such that, unless they are corrected quickly, damage and, possibly, death can result. Low temperature stress is countered by m...

journal_title：FEBS letters

authors： Guschina IA,Harwood JL

更新日期：2006-10-09 00:00:00

abstract：:The bacterial twin-arginine translocation (Tat) pathway is distinct from the Sec system by its remarkable capacity to export folded enzymes. To address the question whether the two systems are capable of translocating homologous enzymes catalyzing the same reaction, we cloned the tap gene encoding Thermus thermophilus...

journal_title：FEBS letters

authors： Angelini S,Moreno R,Gouffi K,Santini C,Yamagishi A,Berenguer J,Wu L

更新日期：2001-10-05 00:00:00

abstract：:In this work we have investigated the role of specific peptide sequences for glucose-inactivation of the yeast isocitrate lyase. Thus, different fragments of the ICL1 coding region were fused to the lacZ gene of E. coli to provide a reporter construction. Determinations of beta-galactosidase activities indicated that ...

journal_title：FEBS letters

authors： Ordiz I,Herrero P,Rodicio R,Moreno F

更新日期：1995-07-03 00:00:00

abstract：:Although insulin secretion is usually regarded as a Ca2+-dependent mechanism, recent studies have suggested the existence of a Ca2+-independent pathway of regulation by glucose. Here, mouse islets were used to compare the contribution of Ca2+-dependent and -independent pathways. Glucose increased insulin release in a ...

journal_title：FEBS letters

authors： Sato Y,Nenquin M,Henquin JC

更新日期：1998-01-09 00:00:00

abstract：:Islet-activating protein (IAP) suppressed Ca2+-induced histamine release and phospholipase A2 activation in Gpp(NH)p-loaded mast cells. Since the guanine nucleotide-binding protein involved in adenylate cyclase inhibition is known to lose its function upon being ADP-ribosylated by IAP, the nucleotide-binding protein i...

journal_title：FEBS letters

authors： Nakamura T,Ui M

更新日期：1984-08-06 00:00:00

abstract：:In HL-60 cells signal transduction via sphingomyelin hydrolysis (sphingomyelin cycle) is induced by binding of tumor necrosis factor alpha (TNFalpha) to cell surface TNFalpha receptor. We found that IgG immunoglobulins activate sphingomyelin hydrolysis in plasma membrane of HL-60 cells, with kinetics similar to that o...

journal_title：FEBS letters

authors： Glick D,Barenholz Y

更新日期：1996-10-07 00:00:00

abstract：:Binding of cysteine proteinases of the papain superfamily (papain and cathepsins B, B-like and L) to basement membranes was studied by using the enzymatic activity of these proteinases against their specific fluorogenic substrates. Papain inactivated by E64 was used for Kd determination by competition experiments. The...

journal_title：FEBS letters

authors： Guinec N,Dalet-Fumeron V,Pagano M

更新日期：1992-08-24 00:00:00

abstract：:Inborn errors of the urea cycle, liver malfunction and drug-induced hepatotoxicity are causes of life-threatening encephalopathies arising from hyperammonemia. L-Carnitine prevented entirely ammonia toxicity in mice when injected intraperitoneally 30 min before a lethal dose of ammonium acetate. Survival depends on th...

journal_title：FEBS letters

authors： O'Connor JE,Costell M,Grisolía S

更新日期：1984-01-30 00:00:00

abstract：:Winter flounder contains two distinct anti-freeze protein isoforms, which are the liver-type extracellular anti-freeze proteins and the skin-type intracellular anti-freeze protein. The skin-type anti-freeze proteins exhibit lower anti-freeze activities than the liver-type isoforms and this might be due to their lackin...

journal_title：FEBS letters

authors： Lin Q,Ewart KV,Yang DS,Hew CL

更新日期：1999-06-25 00:00:00

abstract：:Fourier-transform infrared (FT-IR) spectral imaging was used for analyzing biochemical changes in tumor cells. Metabolic parameters of human lung A549/8 adenocarcinoma and U87 glioma cells were compared under stress conditions in culture along with tumor progression after cell implantation onto the chick embryo chorio...

journal_title：FEBS letters

authors： Petibois C,Drogat B,Bikfalvi A,Déléris G,Moenner M

更新日期：2007-11-27 00:00:00

abstract：:Three regions of the alpha chain of Torpedo californica acetylcholine receptor (AChR), corresponding to residues alpha 262-276, alpha 388, 408 and alpha 427-437 were synthesized, purified and characterized. The first two peptides have been proposed to occupy inter-transmembrane regions while the third represented the ...

journal_title：FEBS letters

authors： Atassi MZ,Manshouri T,Yokoi T

更新日期：1988-02-15 00:00:00

abstract：:There are two common forms of NRH-quinone oxidoreductase 2 (NQO2) in the human population resulting from SNP rs1143684. One has phenylalanine at position 47 (NQO2-F47) and the other leucine (NQO2-L47). Using recombinant proteins, we show that these variants have similar steady state kinetic parameters, although NQO2-L...

journal_title：FEBS letters

authors： Megarity CF,Gill JR,Caraher MC,Stratford IJ,Nolan KA,Timson DJ

更新日期：2014-05-02 00:00:00

abstract：:When rat pancreatic islets were incubated with 10(-8) M arginine vasopressin in the presence of 15 mM glucose there was a pronounced inhibition of insulin release in comparison with controls. This inhibitory effect appeared to be specific for vasopressin since it was antagonised by vasopressin antibody. Moreover, pert...

journal_title：FEBS letters

authors： Khalaf LJ,Taylor KW

更新日期：1988-04-11 00:00:00

abstract：:A recombinant antigen (p22-NS3), possessing putative HCV nucleocapsid protein (p22) and non-structural protein 3 (NS3) epitopes, was heavily expressed in E. coli and purified. The p22-NS3 purified recombinant antigen strongly reacts with sera containing human antibodies directed against p22 and NS3 providing a startin...

journal_title：FEBS letters

authors： Osborne S,Cecconato E,Griva S,Garetto F,Calogero R,Rosa C,Bonelli F

更新日期：1993-06-21 00:00:00

abstract：:Based on imino proton exchange catalysis, base-pair lifetimes and apparent dissociation constants are reported on the complexes formed by bisintercalation of echinomycin at the CpG steps of the d(ACGTATACGT)2 and d(ACGTTAACGT)2 duplexes. The lifetimes of the four central A x T base pairs between two echinomycin bindin...

journal_title：FEBS letters

authors： Park JY,Lee JH,Choi BS

更新日期：1998-04-24 00:00:00

abstract：:alpha 1 Antitrypsin (alpha 1AT) is the main physiological inhibitor of neutrophil elastase, a serine protease which has been implicated in tissue degradation at inflammatory sites. We report here that the connective tissue metalloproteinase, stromelysin, cleaved alpha 1AT (54 kDa), producing fragments of approximately...

journal_title：FEBS letters

authors： Winyard PG,Zhang Z,Chidwick K,Blake DR,Carrell RW,Murphy G

更新日期：1991-02-11 00:00:00

abstract：:The crystal structure of human immunodeficiency virus type 1 (HIV-1) protease mutant G48H with peptidic inhibitor U-89360E is described. Comparison with wild-type protease-inhibitor complex shows that mutation of flap residue 48 to histidine allows stabilizing van der Waals contacts between the side chains of His48 an...

journal_title：FEBS letters

authors： Hong L,Zhang XJ,Foundling S,Hartsuck JA,Tang J

更新日期：1997-12-22 00:00:00

abstract：:The surprising result that the spanning domain causes retention of proteins in the Golgi stack poses the question as to the actual mechanism. Here we present a simple model that might have general applicability. ...

journal_title：FEBS letters

authors： Nilsson T,Slusarewicz P,Hoe MH,Warren G

更新日期：1993-09-06 00:00:00

abstract：:Aquaporin-4, a predominant water channel in the central nervous system, has two isoforms, M1 and M23, whose transcripts are driven by distinct promoters. Using a reporter assay, we found that a fragment located between exons 0 and 1 of the mouse aquaporin-4 gene, which had been thought to be the promoter for M23, lack...

journal_title：FEBS letters

authors： Abe Y,Goda W,Ikeshima-Kataoka H,Yasui M

更新日期：2017-12-01 00:00:00

abstract：:Activities of Escherichia coli DNA polymerase-I were examined in the presence of the anti-tumor drug cis-diaminedichloroplatinum(II) and its inactive geometric isomer trans-diaminedichloroplatinum(II). The trans-isomer did not inhibit the enzyme activity. The anti-tumor drug, on the other hand, retarded the enzyme in ...

journal_title：FEBS letters

authors： Duman RK,Heath RT,Bose RN

更新日期：1999-07-16 00:00:00

abstract：:The interactions between the polyanionic ligands phosphate and sulphate and the type II dehydroquinases from Streptomyces coelicolor and Mycobacterium tuberculosis have been characterised using a combination of structural and kinetic methods. From both approaches, it is clear that interactions are more complex in the ...

journal_title：FEBS letters

authors： Evans LD,Roszak AW,Noble LJ,Robinson DA,Chalk PA,Matthews JL,Coggins JR,Price NC,Lapthorn AJ

更新日期：2002-10-23 00:00:00

abstract：:Membrane incorporation and aggregation of the peptide alamethicin have been investigated as a function of lipid type. Head group and acyl chain regions both contribute to modulate alamethicin incorporation. Specifically, the peptide prefers thin membranes and saturated chains; incorporation is reduced by the presence ...

journal_title：FEBS letters

authors： Stankowski S,Schwarz G

更新日期：1989-07-03 00:00:00

abstract：:Foot-and-mouth disease virus leader proteinase (L(pro)), a papain-like cysteine proteinase, has six acidic amino acids between 4 A and 11 A of the catalytic dyad of Cys51 and His148. In contrast, in papain and related enzymes, only one acidic residue lies within this distance. We have examined by site-directed mutagen...

journal_title：FEBS letters

authors： Kronovetr J,Skern T

更新日期：2002-09-25 00:00:00

abstract：:The multidrug resistance protein (MRP) is an ATP-dependent transport protein for organic anions, as well as neutral or positively charged anticancer agents. In this study we report that dinitrophenyl-S-glutathione increases ATPase activity in plasma membrane vesicles prepared from the MRP-overexpressing cell line GLC4...

journal_title：FEBS letters

authors： Hooijberg JH,Broxterman HJ,Heijn M,Fles DL,Lankelma J,Pinedo HM

更新日期：1997-08-18 00:00:00

abstract：:The effects of ribosomal protein L5 on the conformation of 5 S rRNA in the 5 S rRNA-protein L5 complex extracted from rat liver ribosomes have been studied by laser Raman spectroscopy. A comparison of the spectra shows small protein-induced conformational changes in the 5 S rRNA, but most of the base-paired regions ap...

journal_title：FEBS letters

authors： Fabian H,Böhm S,Carius W,Misselwitz R,Welfle H

更新日期：1983-05-08 00:00:00

abstract：:The non-selective gastrin/cholecystokinin receptor antagonists proglumide and benzotript inhibit colon carcinoma cell proliferation by binding to the 78 kDa gastrin-binding protein (GBP) (Baldwin, Proc. Natl. Acad. Sci. USA, 91 (1994) 7593-7597). However, although most colon carcinoma cell lines synthesize progastrin,...

journal_title：FEBS letters

authors： Baldwin GS

更新日期：1995-02-06 00:00:00

abstract：:Ubiquitin was extracted from testis of 4 mammals and purified to homogeneity by gel filtration chromatography. Amino acid compositions and NH2-terminal sequences were found to be identical in the 4 species and with calf thymus ubiquitin. Ubiquitin conformation was shown to be very sensitive to oxidation. Improved meth...

journal_title：FEBS letters

authors： Loir M,Caraty A,Lanneau M,Menezo Y,Muh JP,Sautiere P

更新日期：1984-04-24 00:00:00

abstract：:Chloride intracellular channel proteins (CLICs) are distinct from most ion channels in that they have both soluble and integral membrane forms. CLICs are highly conserved in chordates, with six vertebrate paralogues. CLIC-like proteins are found in other metazoans. CLICs form channels in artificial bilayers in a proce...

journal_title：FEBS letters

authors： Littler DR,Harrop SJ,Goodchild SC,Phang JM,Mynott AV,Jiang L,Valenzuela SM,Mazzanti M,Brown LJ,Breit SN,Curmi PM

更新日期：2010-05-17 00:00:00

abstract：:Fructose 2,6-bisphosphate has been claimed to be both a substrate analogue and an allosteric inhibitor of fructose-1,6-bisphosphatase. The results reported here show that fructose 2,6-bisphosphate can be both an inhibitor and an activator of the enzyme, depending on the substrate concentration. This biphasic behaviour...

journal_title：FEBS letters

authors： Corredor C,Boscá L,Sols A

更新日期：1984-02-27 00:00:00