Determination of amino acids critical to the main immunogenic region of intact acetylcholine receptors by in vitro mutagenesis.

abstract：:The amyloid precursor protein (APP) is proteolytically processed by β- and γ-secretases to release amyloid-β peptide (Aβ), the main component found in senile plaques of Alzheimer's disease (AD) patient brains. Alternatively, APP can be cleaved within the Aβ sequence by α-secretase, thus precluding the generation of Aβ...

journal_title：FEBS letters

authors： León-Otegui M,Gómez-Villafuertes R,Díaz-Hernández JI,Díaz-Hernández M,Miras-Portugal MT,Gualix J

更新日期：2011-07-21 00:00:00

abstract：:It was determined that flavan-3-ols and procyanidins have an inhibitory effect on angiotensin I converting enzyme (ACE) activity, and the effect was dependent on the number of epicatechin units forming the procyanidin. The inhibition by flavan-3-ols and procyanidins was competitive with the two substrates assayed: N-h...

journal_title：FEBS letters

authors： Actis-Goretta L,Ottaviani JI,Keen CL,Fraga CG

更新日期：2003-12-18 00:00:00

abstract：:Human ECE-1 is expressed in four isoforms with different tissue distribution and its mRNA and protein levels are altered under certain pathophysiological conditions. To investigate the transcriptional regulation of ECE-1, we studied the regulatory region of ECE-1c, the major ECE-1 isoform. A genomic clone comprising t...

journal_title：FEBS letters

authors： Funke-Kaiser H,Bolbrinker J,Theis S,Lemmer J,Richter CM,Paul M,Orzechowski HD

更新日期：2000-01-28 00:00:00

abstract：:Signal transduction pathways control cellular responses to extrinsic and intrinsic signals. The yeast HOG (High Osmolarity Glycerol) response pathway mediates cellular adaptation to hyperosmotic stress. Pathway architecture as well as the flow of signal have been studied to a very high degree of detail. Recently, the ...

journal_title：FEBS letters

authors： Hohmann S

更新日期：2009-12-17 00:00:00

abstract：:The products of the isiAB operon are a chlorophyll antenna protein (IsiA) and flavodoxin (IsiB), which accumulate in cyanobacteria grown under iron starvation conditions. Here we show that strong light triggers de-repression of isiAB transcription and leads to IsiA and flavodoxin accumulation under iron replete condit...

journal_title：FEBS letters

authors： Havaux M,Guedeney G,Hagemann M,Yeremenko N,Matthijs HC,Jeanjean R

更新日期：2005-04-25 00:00:00

abstract：:The O-chain polysaccharide (O-PS) of Bordetella avium was isolated from the lipopolysaccharide by mild acid hydrolysis to remove the lipid A, followed by hydrofluorolysis to remove the lipopolysaccharide core oligosaccharide leaving a residual O-PS for structural analysis. High resolution (1)H and (13)C NMR and MALDI ...

journal_title：FEBS letters

authors： Larocque S,Brisson JR,Thérisod H,Perry MB,Caroff M

更新日期：2003-01-30 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：:The plant hormone cytokinin plays a major role in regulating plant growth and development. Here we generated cytokinin-reduction Arabidopsis plants by overexpressing a heterologous cytokinin oxidase gene DSCKX1 from Dendrobium orchid. These transgenic plants exhibited reduced biomass, rapid root growth, decreased abil...

journal_title：FEBS letters

authors： Yang S,Yu H,Xu Y,Goh CJ

更新日期：2003-12-04 00:00:00

abstract：:Regulated permeability changes have been detected in mitochondria across species. We review here their key features, with the goal of assessing whether a "permeability transition" similar to that observed in higher eukaryotes is present in other species. The recent discoveries (i) that treatment with cyclosporin A (Cs...

journal_title：FEBS letters

authors： Azzolin L,von Stockum S,Basso E,Petronilli V,Forte MA,Bernardi P

更新日期：2010-06-18 00:00:00

abstract：:We report the effects of anticancer drugs, inhibitors of microtubule organisation, on the mitochondrial permeability transition pore (PTP) in Ehrlich ascites tumour cells. Taxol (5-20 microM) and colchicine (100-500 microM) prevented closing of the cyclosporin A-sensitive PTP. No taxol or colchicine effects on oxidati...

journal_title：FEBS letters

authors： Evtodienko YV,Teplova VV,Sidash SS,Ichas F,Mazat JP

更新日期：1996-09-09 00:00:00

abstract：:Among DNA repair pathways, nucleotide excision repair (NER) is able to recognize and process a wide variety of DNA lesions. The NER mechanism can be summarized in two stages: incision/excision of the lesion and DNA repair synthesis. Here, we have assessed the repair synthesis activity of protein extracts from differen...

journal_title：FEBS letters

authors： Coudoré F,Calsou P,Salles B

更新日期：1997-09-15 00:00:00

abstract：:We characterized the promoter activity of a medaka fish intestinal guanylyl cyclase gene, OlGC6, by assay of enzyme activity in response to various promoter-luciferase fusion gene constructs introduced into CACO-2 cells and medaka fish embryos. A transient transfection assay of the various fusion gene constructs showe...

journal_title：FEBS letters

authors： Nakauchi M,Suzuki N

更新日期：2003-02-11 00:00:00

abstract：:Na(+)/H(+) antiporters are ubiquitous membrane proteins and play an important role in cell homeostasis. We amplified a gene encoding a member of the monovalent cation:proton antiporter-2 (CPA2) family (TC 2.A.37) from the Thermus thermophilus genome and expressed it in Escherichia coli. The gene product was identified...

journal_title：FEBS letters

authors： Furrer EM,Ronchetti MF,Verrey F,Pos KM

更新日期：2007-02-06 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：:32P-Labelled washed rabbit platelets were incubated with 0.6 nM platelet activating factor (PAF-acether), giving a full aggregation and release response within 30-60 s. The major phospholipid changes observed under these conditions were: (1) An increased labelling of phosphatidic acid (PA) within 10 s and of phosphati...

journal_title：FEBS letters

authors： Mauco G,Chap H,Douste-Blazy L

更新日期：1983-03-21 00:00:00

abstract：:Ghrelin inhibits insulin secretion partly via induction of IA-2beta. However, the orexigenic effect of ghrelin is mediated by the AMP-activated protein kinase (AMPK)-uncoupling protein 2 (UCP2) pathway. Here, we demonstrate that ghrelin's inhibitory effect on insulin secretion also occurs through the AMPK-UCP2 pathway...

journal_title：FEBS letters

authors： Wang Y,Nishi M,Doi A,Shono T,Furukawa Y,Shimada T,Furuta H,Sasaki H,Nanjo K

更新日期：2010-04-16 00:00:00

abstract：:In this study, we demonstrated that Ent-11alpha-hydroxy-15-oxo-kaur-16-en-19-oic-acid (5F) had stronger cytotoxicity against MKN-45, a gastric cancer cell line bearing wild-type p53 than MKN-28, another gastric cancer cell line containing missense mutation in p53. The rapid increase of ROS level was involved in the me...

journal_title：FEBS letters

authors： Liu Z,Ng EK,Liang NC,Deng YF,Leung BC,Chen GG

更新日期：2005-02-28 00:00:00

abstract：:Apicomplexan parasites contain a vestigial plastid called apicoplast which has been suggested to be a site of [Fe-S] cluster biogenesis. Here we report the cloning of lipoic acid synthase (LipA) from Toxoplasma gondii, a well known [Fe-S] protein. It is able to complement a LipA-deficient Escherichia coli strain, clea...

journal_title：FEBS letters

authors： Thomsen-Zieger N,Schachtner J,Seeber F

更新日期：2003-07-17 00:00:00

abstract：:Uptake of cholesterol by isolated rat hepatocytes in a serum-free medium was remarkably enhanced by dispersion with several kinds of phosphatidylcholine. Of the various phosphatidylcholines tested, dilinoylphosphatidylcholine had the strongest accelerating effect, while dipalmitoylphosphatidylcholine was the weakest. ...

journal_title：FEBS letters

authors： Nagamura Y,Sasaki K,Ito M,Saito K,Ogitsu N,Ishiguro I

更新日期：1986-07-14 00:00:00

abstract：:Although transthyretin (TTR) is expressed in pancreatic alpha (glucagon) cells in the islets of Langerhans, the function of TTR in pancreatic alpha cells remains unknown. In this study, by using TTR knockout (TTR KO) mice, we determined the novel role of TTR in glucose homeostasis. We demonstrated that TTR KO mice evi...

journal_title：FEBS letters

authors： Su Y,Jono H,Misumi Y,Senokuchi T,Guo J,Ueda M,Shinriki S,Tasaki M,Shono M,Obayashi K,Yamagata K,Araki E,Ando Y

更新日期：2012-11-30 00:00:00

abstract：:A point mutation (Ala-589 to Thr) in the transmembrane protein of the human immunodeficiency virus type 1 (HIV-1) has been shown to decrease the sensitivity of the virus to the neutralizing effect of human HIV-1 specific antibodies [(1990) J. Virol. 64, 3240-3248]. Here 17-residue peptides with the parental and mutant...

journal_title：FEBS letters

authors： Klasse J,Pipkorn R,Blomberg J,Han KH,Hilton B,Ferretti JA

更新日期：1993-05-24 00:00:00

abstract：:Treatment of yeast phosphoglycerate kinase (PGK) with trypsin results in a fourfold increase in the Vmax of this enzyme, without affecting the Km. This activation is shown to be due to the removal of the C-terminal lysine residue. The C-terminal sequence folds back over the N-terminal domain and contacts the extreme N...

journal_title：FEBS letters

authors： Adams B,Fowler R,Hudson M,Pain RH

更新日期：1996-04-29 00:00:00

abstract：:TP53 belongs to a small gene family that includes, in mammals, two additional paralogs, TP63 and TP73. The p63 and p73 proteins are structurally and functionally similar to p53 and their activity as transcription factors is regulated by a wide repertoire of shared and unique post-translational modifications and intera...

journal_title：FEBS letters

authors： Costanzo A,Pediconi N,Narcisi A,Guerrieri F,Belloni L,Fausti F,Botti E,Levrero M

更新日期：2014-08-19 00:00:00

abstract：:A new epsilon-N-trimethyllysine metabolite has been isolated from the mycelium of Neurospora crassa. The labelled compound produced from incubations in vivo and in vitro from epsilon-N-trimethyl ([14-C]H3)L-lysine has been identified as 2-keto-epsilon-N-trimethyl-hexanoic acid by reducing its 2,4-dinitrophenyl hydrazo...

journal_title：FEBS letters

authors： Villanueva VR,Lederer E

更新日期：1975-04-01 00:00:00

abstract：:Rho family small GTPases regulate lymphocyte migration induced by chemokines. However, how lymphocyte migration is regulated by Rho GTPases remains to be elucidated. Here, we identified FilGAP, a Rac-specific GAP, as a negative regulator of lymphocyte polarization and migration. Depletion of FilGAP in mouse pro-B BAF ...

journal_title：FEBS letters

authors： Iida T,Saito K,Katagiri K,Kinashi T,Ohta Y

更新日期：2016-05-01 00:00:00

abstract：:Non-invasive selection of transgenic mice was performed at the stage of preimplantation embryos. The morulae collected from wild female mated with hemizygous transgenic male expressing Aequorea victoria green fluorescent protein (GFP) under chicken beta-actin promoter could be classified as green or non-green under a ...

journal_title：FEBS letters

authors： Ikawa M,Kominami K,Yoshimura Y,Tanaka K,Nishimune Y,Okabe M

更新日期：1995-11-13 00:00:00

abstract：:Binding of vitronectin (VN) to Neisseria gonorrhoeae expressing the heparan sulfate proteoglycan (HSPG) specific Opa50 protein was recently shown to trigger bacterial internalization into distinct epithelial cell lines. We have investigated the role of VN-binding integrin receptors and protein kinase C (PKC) in VN-tri...

journal_title：FEBS letters

authors： Dehio M,Gómez-Duarte OG,Dehio C,Meyer TF

更新日期：1998-03-06 00:00:00

abstract：:We previously showed that P4-ATPases, ATP10A/ATP8B1, and ATP11A/ATP11C have flippase activities toward phosphatidylcholine (PC), and aminophospholipids [phosphatidylserine (PS) and phosphatidylethanolamine], respectively. Here, we investigate the effect of PC-specific flippases versus aminophospholipid-specific flippa...

journal_title：FEBS letters

authors： Miyano R,Matsumoto T,Takatsu H,Nakayama K,Shin HW

更新日期：2016-07-01 00:00:00

abstract：:Using the polymerase chain reaction (PCR), we identified a gene family including more than 60 members which encoded similar G protein-coupled seven-transmembrane receptors. Sequence analyses of six representatives out of the 60 PCR clones showed that they had significant structural similarity to olfactory and optic re...

journal_title：FEBS letters

authors： Abe K,Kusakabe Y,Tanemura K,Emori Y,Arai S

更新日期：1993-02-01 00:00:00

abstract：:Suppression of electron flow (and its subsequent restoration with 3-10 mM NaHCO3) on the donor side of photosystem II is shown upon either a partial depletion of pea subchloroplast membranes in bicarbonate or the addition of 5-20 microM formate. At higher concentrations (5 mM) formate induces the known 'bicarbonate ef...

journal_title：FEBS letters

authors： Klimov VV,Allakhverdiev SI,Feyziev YaM,Baranov SV

更新日期：1995-04-24 00:00:00