Behavior of a photoactivatable analog of cholesterol, 6-photocholesterol, in model membranes.

abstract：:The degradation of the erythro and threo isomers of the non-phenolic lignin model compound 2-(2,6-dimethoxyphenoxy)-1-(3,4-dimethoxyphenyl)-1,3-propanediol was examined. Enzymic and non-enzymic oxidation of the diastereomers was performed with Trametes versicolor lignin peroxidase and cerium(IV) ammonium nitrate, resp...

journal_title：FEBS letters

authors： Jönsson L,Karlsson O,Lundquist K,Nyman PO

更新日期：1990-12-10 00:00:00

abstract：:For understanding the mechanism(s) relating inflammation to corticosteroid action, the effect of tumour necrosis factor-alpha (TNF-alpha) on 11beta-hydroxysteroid dehydrogenase type 2 (11beta-HSD2), the enzyme regulating access of 11beta-hydroxycorticosteroids to receptors, was studied in LLC-PK(1) cells. We observed ...

journal_title：FEBS letters

authors： Heiniger CD,Rochat MK,Frey FJ,Frey BM

更新日期：2001-11-02 00:00:00

abstract：:We previously showed that the post-translational cleavage of alphav subunit is essential for integrin-dependent signalling and cell adhesion. Here, we report that blocking alphav subunit cleavage by expression of alpha1-PDX, a convertase inhibitor, modified the capacity of cells to change shape, via a remodelling of t...

journal_title：FEBS letters

authors： Berthet V,Rigot V,Nejjari M,Marvaldi J,Luis J

更新日期：2004-01-16 00:00:00

abstract：:Insulin receptors (IRs) that are truncated at the end of the ectodomain form dimers that bind insulin with different characteristics to wild type receptors. These soluble IRs have lowered affinity for insulin compared with full-length IR, and exhibit linear Scatchard plots in contrast to the curvilinear plots obtained...

journal_title：FEBS letters

authors： Hoyne PA,Cosgrove LJ,McKern NM,Bentley JD,Ivancic N,Elleman TC,Ward CW

更新日期：2000-08-11 00:00:00

abstract：:We have studied the interaction of the yeast RAS2 protein with guanine nucleotides using energetic parameters for the dissociation of RAS.nucleotide complexes. The results indicated that a Gly-->Ser substitution at position 82 led to an altered interaction with GppNHp and, to a lesser extent, also with GDP. It was als...

journal_title：FEBS letters

authors： De Vendittis E,Fasano O

更新日期：1994-06-27 00:00:00

abstract：:A 4.8 kb DNA-fragment was cloned and sequenced encompassing the structural gene of PFL-deactivase (2.7 kb) and 2 kb of the 5' flanking region that contains the elements for anaerobic induction. A mutant lacking deactivase was shown to require exogenous electron acceptors for anaerobic growth with glucose. This reveale...

journal_title：FEBS letters

authors： Kessler D,Leibrecht I,Knappe J

更新日期：1991-04-09 00:00:00

abstract：:SUPERMAN was identified as a putative regulator of transcription that acts in floral development, but its function remains to be clarified. We demonstrate here that SUPERMAN is an active repressor whose repression domain is located in the carboxy-terminal region. Ectopic expression of SUPERMAN that lacked the repressi...

journal_title：FEBS letters

authors： Hiratsu K,Ohta M,Matsui K,Ohme-Takagi M

更新日期：2002-03-13 00:00:00

abstract：:A key step in sulfate assimilation into cysteine is the reduction of sulfite to sulfide by sulfite reductase (SiR). This enzyme is encoded by three genes in the moss Physcomitrella patens. To obtain a first insight into the roles of the individual isoforms, we deleted the gene encoding the SiR1 isoform in P. patens by...

journal_title：FEBS letters

authors： Wiedemann G,Hermsen C,Melzer M,Büttner-Mainik A,Rennenberg H,Reski R,Kopriva S

更新日期：2010-06-03 00:00:00

abstract：:We have analyzed the glycosaminoglycans exposed on the surface of endothelial cells cultured in vitro. The cells were labelled with [35S]sodium sulfate. Chondroitin sulfate, heparan sulfate and dermatan sulfate are the main sulfated glycosaminoglycans present on the cell surface. They are synthesized by endothelial ce...

journal_title：FEBS letters

authors： Cavari S,Vannucchi S

更新日期：1993-05-24 00:00:00

abstract：:Coenzyme A ligases play an important role in metabolism by catalyzing the activation of carboxylic acids. In this study we describe the synthesis of aminoacyl-coenzyme As (CoAs) catalyzed by a CoA ligase from Penicillium chrysogenum. The enzyme accepted medium-chain length fatty acids as the best substrates, but the p...

journal_title：FEBS letters

authors： Koetsier MJ,Jekel PA,Wijma HJ,Bovenberg RA,Janssen DB

更新日期：2011-03-23 00:00:00

abstract：:Gap junction channels may be comprised of either connexin or pannexin proteins (innexins and pannexins). Membrane topologies of both families are similar, but sequence similarity is lacking. Recently, connexin-like sequences have been identified in mammalian and zebrafish genomes that have only four conserved cysteine...

journal_title：FEBS letters

authors： Iovine MK,Gumpert AM,Falk MM,Mendelson TC

更新日期：2008-01-23 00:00:00

abstract：:The influence of aniso-osmolarity on the activity of the MAP kinases Erk-1 and Erk-2 was studied in C6 glioma cells. Hypo-osmotic treatment (205 mosmol/l) led to an increased activity of Erk-1 and Erk-2 within 3 min, which became maximal at 10 min and returned to basal level within 120 min. In contrast, Erk activity w...

journal_title：FEBS letters

authors： Sinning R,Schliess F,Kubitz R,Häussinger D

更新日期：1997-01-03 00:00:00

abstract：:CXCR4 (fusin) is a chemokine receptor which is involved as a coreceptor in gp120 binding to the cell surface. In this study we provide evidence that binding of gp120 triggers CXCR4 recruitment to glycosphingolipid-enriched microdomains. Scanning confocal microscopy showed a nearly complete localization of CXCR4 within...

journal_title：FEBS letters

authors： Sorice M,Garofalo T,Misasi R,Longo A,Mattei V,Sale P,Dolo V,Gradini R,Pavan A

更新日期：2001-09-28 00:00:00

abstract：:The contribution of hepatic glycogen to lipogenesis was studied in isolated, intact rat hepatocytes. To establish its importance as a substrate for lipogenesis, the glycogen of isolated hepatocytes was prelabelled with 14C from glucose. Evidence is presented that neither glucose nor glycogen constitute major sources o...

journal_title：FEBS letters

authors： Geelen MJ,Hindriks GA

更新日期：1984-09-17 00:00:00

abstract：:We have previously shown that topoisomerase I (topo I) antagonist inhibited retrovirus replication. Since tyrphostins, synthetic compounds and protein tyrosine kinases (PTKs) blockers, inhibited topo I activity (manuscript in preparation) we examined their ability to inhibit Moloney murine leukemia virus (Mo-MuLV) rep...

journal_title：FEBS letters

authors： Esther A,Iftach S,Esther P

更新日期：1994-03-14 00:00:00

abstract：:Antiparaoxon immune sera were employed in a new immunoassay based on competition between acetylcholinesterase and antibodies for the binding of paraoxon. Unlike radioimmunoassay, the new assay described herein can be extended to predict the feasibility of antibodies to confer in vivo protection of acetylcholinesterase...

journal_title：FEBS letters

authors： Heldman E,Balan A,Horowitz O,Ben-Zion S,Torten M

更新日期：1985-01-28 00:00:00

abstract：:In Alzheimer disease (AD) the microtubule associated protein (MAP) tau is hyperphosphorylated at several sites. In the present study, like AD tau, tau in the human neuroblastoma SH-SY5Y was found to be hyperphosphorylated, at Ser-199/202, Thr-231, Ser-396 and Ser-404. However, in contrast to AD, the tau in SY5Y cells ...

journal_title：FEBS letters

authors： Tanaka T,Iqbal K,Trenkner E,Liu DJ,Grundke-Iqbal I

更新日期：1995-02-20 00:00:00

abstract：:The G-protein regulatory (GPR) motif is a approximately 25 amino acid sequence that stabilizes the GDP-bound conformation of Gialpha. To identify additional GPR motifs, we expanded a motif-based search strategy and identified an additional 4 mammalian proteins (WAVE1-3, rat GHRH) and 10 plant proteins with candidate G...

journal_title：FEBS letters

authors： Song KS,Peterson YK,Freidman A,Blumer JB,Sato M,Lanier SM

更新日期：2006-04-03 00:00:00

abstract：:Apoferritin has been selectively labeled with a maleimide nitroxide derivative at Cys-126, located in the hydrophilic 3-fold channels. Titration of this derivative with Fe(II), which gives rise to the initial Fe(III)-apoferritin complex, produces, at low metal-to-protein ratios, a decrease of the intensity of the labe...

journal_title：FEBS letters

authors： Desideri A,Stefanini S,Polizio F,Petruzzelli R,Chiancone E

更新日期：1991-08-05 00:00:00

abstract：:In this study, functional proteomics was successfully applied for the characterization of circadian expressed, basic proteins. For this purpose, we have chosen the green model alga Chlamydomonas reinhardtii since its entire nuclear genome is available and it is ideally suited for biochemical enrichment procedures. Pro...

journal_title：FEBS letters

authors： Wagner V,Fiedler M,Markert C,Hippler M,Mittag M

更新日期：2004-02-13 00:00:00

abstract：:The importance of HNF1 binding proteins for intestinal aminopeptidase N expression was investigated using the Caco-2 cell-line. Aminopeptidase N promoter activity in Caco-2 cells depends on the HNF1 element (positions -85 to -58) and co-transfection with an HNF1 alpha expression vector demonstrates a direct activation...

journal_title：FEBS letters

authors： Olsen J,Laustsen L,Troelsen J

更新日期：1994-04-11 00:00:00

abstract：:In contrast to the preponderance of affected males in families with X-linked mental retardation, Rett syndrome (RTT) is a neurological disorder occurring almost exclusively in females. The near complete absence of affected males in RTT families has been explained by the lethal effect of an X-linked gene mutation in he...

journal_title：FEBS letters

authors： Orrico A,Lam C,Galli L,Dotti MT,Hayek G,Tong SF,Poon PM,Zappella M,Federico A,Sorrentino V

更新日期：2000-09-22 00:00:00

abstract：:We have cloned and characterized four Itpk genes from soybean. All four recombinant Itpk proteins showed canonical Ins(1,3,4)P3 5/6-kinase activity, but a kinetic analysis raised questions about its biological significance. Instead, we provide evidence that one alternative biological role for soybean Itpks is to inter...

journal_title：FEBS letters

authors： Stiles AR,Qian X,Shears SB,Grabau EA

更新日期：2008-06-11 00:00:00

abstract：:Artificial spider silk proteins may form fibers with exceptional strength and elasticity. Wrapping silk, or aciniform silk, is the toughest of the spider silks, and has a very different protein composition than other spider silks. Here, we present the characterization of an aciniform protein (AcSp1) subunit named W1, ...

journal_title：FEBS letters

authors： Xu L,Tremblay ML,Orrell KE,Leclerc J,Meng Q,Liu XQ,Rainey JK

更新日期：2013-10-01 00:00:00

abstract：:Rat basophilic leukemia cells (RBL-2H3) have previously been shown to contain a single type of voltage-activated channel, namely an inwardly rectifying K+ channel, under normal recording conditions. Thus, RBL-2H3 cells seemed like a logical source of mRNA for the expression cloning of inwardly rectifying K+ channels. ...

journal_title：FEBS letters

authors： Lewis DL,Ikeda SR,Aryee D,Joho RH

更新日期：1991-09-23 00:00:00

abstract：:The ubiquitin-like modifier, FAT10, is involved in proteasomal degradation and antigen processing. As ubiquitin and the ubiquitin-like modifier, ISG15, cotranslationally modify proteins, we investigated whether FAT10 could also be conjugated to newly synthesized proteins. Indeed, we found that nascent proteins are mod...

journal_title：FEBS letters

authors： Spinnenhirn V,Bitzer A,Aichem A,Groettrup M

更新日期：2017-01-01 00:00:00

abstract：:Translocation of folded proteins by the Tat system of Escherichia coli is believed to rely on the presence of phosphatidylethanolamine (PE) and the negatively charged phospholipids cardiolipin (CL) and phosphatidylglycerol (PG). Here, we show that while PE is indeed essential for activity, the Tat system is fully func...

journal_title：FEBS letters

authors： Rathmann C,Schlösser AS,Schiller J,Bogdanov M,Brüser T

更新日期：2017-09-01 00:00:00

abstract：:Galectin-3, with a wide tissue distribution and marked developmental regulation, provides significant insights into the progression of various disease and developmental stages. Recognized by its specificity for galactose, a detailed characterization of its sugar binding ability has been investigated by isothermal titr...

journal_title：FEBS letters

authors： Bachhawat-Sikder K,Thomas CJ,Surolia A

更新日期：2001-06-29 00:00:00

abstract：:We previously identified and purified a nucleolar phosphoprotein, nucleophosmin/B23, as a stimulatory factor for replication from the adenovirus chromatin. We show here that nucleophosmin/B23 functions as a histone chaperone protein such as nucleoplasmin, TAF-I, and NAP-I. Nucleophosmin/B23 was shown to bind to histon...

journal_title：FEBS letters

authors： Okuwaki M,Matsumoto K,Tsujimoto M,Nagata K

更新日期：2001-10-12 00:00:00

abstract：:A sensitive and specific radioimmunoassay suitable for direct measurement of leukotriene C4 was developed. Acetylated leukotriene C4 was coupled to polyamino bovine serum albumin using 1-ethyl-3-(3-dimethylamino-propyl) carbodiimide hydrochloride as coupling agent. The conjugate in complete or incomplete Freund's adju...

journal_title：FEBS letters

authors： Lindgren JA,Hammarström S,Goetzl EJ

更新日期：1983-02-07 00:00:00