Ligand-receptor interactions in the nicotinic acetylcholine receptor probed using multiple substitutions at conserved tyrosines on the alpha subunit.

abstract：:We transfected the COS-7 cells with cDNAs encoding different human somatostatin receptor (hSSTR) subtypes, and found that hSSTR subtypes mediate not only the inhibition of forskolin-induced cAMP accumulation but also the stimulation of phospholipase C (PLC) and Ca2+ mobilization. Activation of PLC by 1 microM somatost...

journal_title：FEBS letters

authors： Akbar M,Okajima F,Tomura H,Majid MA,Yamada Y,Seino S,Kondo Y

更新日期：1994-07-11 00:00:00

abstract：:Rats bearing the fast-growing AH-130 Yoshida ascites hepatoma showed a marked cachectic response which has been previously reported [Tessitore et al. (1987) Biochem. J. 241, 153-159]. Thus tumour-bearing animals showed significant decreases in body and muscle weight (soleus and gastrocnemius) as compared to both pair-...

journal_title：FEBS letters

authors： Llovera M,García-Martínez C,Agell N,Marzábal M,López-Soriano FJ,Argilés JM

更新日期：1994-02-07 00:00:00

abstract：:The assembly of the Sm-class of uridine-rich small nuclear ribonucleoproteins (U snRNPs), albeit spontaneous in vitro, has recently been shown to be dependent on the aid of a large number of assisting factors in vivo. These factors are organized in two interacting units termed survival motor neuron (SMN)- and protein ...

journal_title：FEBS letters

authors： Neuenkirchen N,Chari A,Fischer U

更新日期：2008-06-18 00:00:00

abstract：:The protozoan parasite and human pathogen Entamoeba histolytica is protected against killing by its own lytic effector proteins. Amoebae withstand doses of amoebapores, their pore-forming polypeptides, that readily kill human Jurkat T cells. Moreover, the polypeptides do not bind to the amoebic surface membrane as evi...

journal_title：FEBS letters

authors： Andrä J,Berninghausen O,Leippe M

更新日期：2004-04-23 00:00:00

abstract：:The colony-forming ability of catalase-deficient Escherichia coli mutant genetically modified to produce eicosapentaenoic acid (EPA) showed less decrease than in a control strain producing no EPA, when treated with 0.3mM hydrogen peroxide (H(2)O(2)) under non-growth conditions. H(2)O(2)-induced protein carbonylation w...

journal_title：FEBS letters

authors： Nishida T,Orikasa Y,Watanabe K,Okuyama H

更新日期：2006-12-11 00:00:00

abstract：:An E. coli overexpression system for the N-terminal domain of the 434 repressor with residues 1-63 (434 repressor(1-63)) was constructed and used to produce this polypeptide with uniform 15N-labeling, and with 13C-labeling of the methyl groups of valine and leucine. Using these protein preparations almost complete seq...

journal_title：FEBS letters

authors： Neri D,Wider G,Wüthrich K

更新日期：1992-06-01 00:00:00

abstract：:Terminal oligopyrimidine (TOP) mRNAs are a group of messengers translationally regulated according to the growth status of the cell. Two hypotheses have been proposed for the mechanism of the regulation: (i) there is a specific translational regulator which can reversibly alter TOP-mRNA structure, (ii) a component of ...

journal_title：FEBS letters

authors： Loreni F,Amaldi F

更新日期：1997-10-27 00:00:00

abstract：:Large conductance voltage-dependent and Ca(2+)-modulated K(+) channels play a crucial role in myometrium contractility. Western blots and immunocytochemistry of rat uterine sections or isolated cells show that MaxiK channel protein signals drastically decrease towards the end of pregnancy. Consistent with a transcript...

journal_title：FEBS letters

authors： Song M,Zhu N,Olcese R,Barila B,Toro L,Stefani E

更新日期：1999-11-05 00:00:00

abstract：:Phosphatidylglycerophosphate (PGP) synthase, encoded by PGP1 and PGP2 in Arabidopsis, catalyzes a committed step in the biosynthesis of phosphatidylglycerol (PG). In this study, we isolated a pgp1pgp2 double mutant of Arabidopsis to study the function of PG. In this mutant, embryo development was delayed and the major...

journal_title：FEBS letters

authors： Tanoue R,Kobayashi M,Katayama K,Nagata N,Wada H

更新日期：2014-05-02 00:00:00

abstract：:A UV irradiation-induced mutant of Bacillus sphaericus 2362 whose sporulation was inhibited neither by natural amino acids nor by L-ethionine was selected. The mutant (A61) grew slowly in rich amino acid medium and contained increased concentrations of heat-resistant spores throughout the growth. Slow growth of A61 wa...

journal_title：FEBS letters

authors： Andreev J,Dibrov PA,Braun S

更新日期：1994-06-27 00:00:00

abstract：:The toxicity of the beta-amyloid (Abeta) peptide of Alzheimer's disease may relate to its polymerisation state (i.e. fibril content). We have shown previously that plasma lipoproteins, particularly when oxidised, greatly enhance Abeta polymerisation. In the present study the nature of the interactions between both nat...

journal_title：FEBS letters

authors： Stanyer L,Betteridge DJ,Smith CC

更新日期：2002-05-08 00:00:00

abstract：:Fas/FasL interactions have been proposed as a potentially important mechanism mediating beta-cell death in type 1 diabetes. Recent investigations suggest RNA interference, afforded by small interfering RNAs (siRNA), can provide specific and robust gene silencing in mammalian cells. The current study attempted to inves...

journal_title：FEBS letters

authors： Burkhardt BR,Lyle R,Qian K,Arnold AS,Cheng H,Atkinson MA,Zhang YC

更新日期：2006-01-23 00:00:00

abstract：:Previously determined protein structures have been analysed, in order to find folding motifs similar to that proposed by NMR spectroscopy, for the N-terminal, 14 kDa fragment of the Ada protein. The analyses reveal only limited similarities with the NMR-derived structural data and strongly suggest that this region of ...

journal_title：FEBS letters

authors： Swindells MB

更新日期：1993-06-01 00:00:00

abstract：:Syntabulin is a microtubule-associated protein that mediates anterograde transport of vesicles to neuronal processes. Here, we found that syntabulin was expressed in mouse pancreas and insulin-secreting β-cells, and that it partially co-localized with microtubule and insulin-containing granules. The association of syn...

journal_title：FEBS letters

authors： Ying Y,Li L,Cao W,Yan D,Zeng Q,Kong X,Lu L,Yan M,Xu X,Qu J,Su Q,Ma X

更新日期：2012-10-19 00:00:00

abstract：:In order to study the function of the bovine MAP4 microtubule-binding domain (the assembly-promoting (AP) sequence region), a fragment corresponding to the AP sequence region was prepared using an Escherichia coli expression system. When the fragment was mixed with purified tubulin at 37 degrees C, the fragment caused...

journal_title：FEBS letters

authors： Katsuki M,Tokuraku K,Nakagawa H,Murofushi H,Kotani S

更新日期：1997-11-24 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：:Proline residues are rarely found in the three most C-terminal positions of bacterial signal peptides, and have never been found in position +1 immediately following the cleavage site. It was recently shown that a Pro+1 mutation in the E. coli maltose binding protein precursor not only prevents cleavage of the signal ...

journal_title：FEBS letters

authors： Nilsson I,von Heijne G

更新日期：1992-03-16 00:00:00

abstract：:Light-dependent Na+ and H+ transports, membrane potential (delta psi) and motility have been studied in the cells of the marine cyanobacterium Oscillatoria brevis. In the presence of a protonophorous uncoupler, carbonyl cyanide-m-chlorophenylhydrazone, the intracellular Na+ level is shown to increase in the dark and d...

journal_title：FEBS letters

authors： Brown II,Fadeyev SI,Kirik II,Severina II,Skulachev VP

更新日期：1990-09-17 00:00:00

abstract：:We have successfully delivered FITC and FITC-Dextran (70, 250 kDa) into canola protoplasts by centrifuging cells with different amounts of microbubbles at variable centrifuge speed. The efficiency is around 90%, while cell viability remains high. Confocal microscopy images show that both FITC and FITC-Dextran are scat...

journal_title：FEBS letters

authors： He C,Gu Q,Huang M,Xing J,Chen J

更新日期：2013-01-31 00:00:00

abstract：:Brain nitric oxide synthase is a Ca2+/calmodulin-regulated enzyme which converts L-arginine into NO. Enzymatic activity of this enzyme essentially depends on NADPH and is stimulated by tetrahydrobiopterin (H4biopterin). We found that purified NO synthase contains enzyme-bound H4biopterin, explaining the enzymatic acti...

journal_title：FEBS letters

authors： Mayer B,John M,Heinzel B,Werner ER,Wachter H,Schultz G,Böhme E

更新日期：1991-08-19 00:00:00

abstract：:Development of targeted therapies for triple-negative breast cancer (TNBC, a more aggressive subtype) is an unmet medical need. We analyzed data from 887 patients with invasive breast cancer and observed that increased Wnt and histone deacetylase (HDAC) activities are associated with estrogen receptor 1 (ESR1) and pro...

journal_title：FEBS letters

authors： Sulaiman A,Sulaiman B,Khouri L,McGarry S,Nessim C,Arnaout A,Li X,Addison C,Dimitroulakos J,Wang L

更新日期：2016-12-01 00:00:00

abstract：:Anaerobic biosynthesis of carotenoids in the purple facultative photosynthetic bacterium Rhodobacter sphaeroides was studied using mass spectrometry. We have demonstrated that (18)O from H2(18)O was incorporated into the 1-methoxy group of spheroidene and spheroidenone, the two major carotenoids produced by this bacte...

journal_title：FEBS letters

authors： Yeliseev AA,Kaplan S

更新日期：1997-02-10 00:00:00

abstract：:The cytochrome P-450 content of rat hepatocytes declined rapidly over 72 h in culture, due primarily to denaturation to cytochrome P-420. Six different media were investigated for their ability to conserve cytochrome P-450 during culture, and the most successful was a modified Earle's medium. After 72 h culture in thi...

journal_title：FEBS letters

authors： Grant MH,Melvin MA,Shaw P,Melvin WT,Burke MD

更新日期：1985-10-07 00:00:00

abstract：:The full-length cDNA encoding the human calbindin-D9k (CaBP-9k) has been cloned using reverse transcription/PCR methodology with rat- and bovine-derived primers and intestinal RNA. A core product, and both a 5' and 3' product encompassing the full-length cDNA were obtained. The clones include coding region for 79 amin...

journal_title：FEBS letters

authors： Jeung EB,Krisinger J,Dann JL,Leung PC

更新日期：1992-07-28 00:00:00

abstract：:A set of inhibitors that are useful for distinction of three types of human cytosolic glutathione transferase is presented. The near-neutral transferase is inhibited most effectively by Cibacron blue (I50 = 0.05 microM), the acidic transferase by Cibacron blue (I50 = 0.5 microM), and the basic transferase by tributylt...

journal_title：FEBS letters

authors： Tahir MK,Guthenberg C,Mannervik B

更新日期：1985-02-25 00:00:00

abstract：:The ∆Np63 isoform of the p53-family transcription factor Trp63 is a key regulator of mammary epithelial stem cells that is involved in breast cancer development. To investigate the role of ∆Np63 at different stages of normal mammary gland development, we generated a ∆Np63-inducible conditional knockout (cKO) mouse mod...

journal_title：FEBS letters

authors： Kumar S,Nandi A,Mahesh A,Sinha S,Flores E,Chakrabarti R

更新日期：2020-03-01 00:00:00

abstract：:Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system characterized by widespread inflammation, focal demyelination and a variable degree of axonal and neuronal loss. Ionic conductances regulate T cell activation as well as neuronal function and thus have been found to play a crucial ...

journal_title：FEBS letters

authors： Ehling P,Bittner S,Budde T,Wiendl H,Meuth SG

更新日期：2011-12-01 00:00:00

abstract：:The placenta comprises a highly specialized trophoblast layer, which arises from the embryo and differentiates during embryonic development to perform specialized functions, e.g., synthesis of pregnancy-associated hormones, growth factors and cytokines. As there is no evidence of maternal acute-phase protein transplac...

journal_title：FEBS letters

authors： Kovacevic A,Hammer A,Sundl M,Pfister B,Hrzenjak A,Ray A,Ray BK,Sattler W,Malle E

更新日期：2006-01-09 00:00:00

abstract：:Mitochondrial fatty acid synthesis is catalyzed by a dissociated fatty acid synthase similar to those of plant plastids and bacteria. The crystal structure of a mitochondrial beta-ketoacyl-[acyl carrier protein] synthase (mtKAS), namely that from Arabidopsis thaliana, has been determined for the first time. This enzym...

journal_title：FEBS letters

authors： Olsen JG,Rasmussen AV,von Wettstein-Knowles P,Henriksen A

更新日期：2004-11-05 00:00:00

abstract：:Methanosarcina barkeri inserts pyrrolysine (Pyl) at an in-frame UAG codon in its monomethylamine methyltransferase gene. Pyrrolysyl-tRNA synthetase acylates Pyl onto tRNAPyl, the amber suppressor pyrrolysine Pyl tRNA. Here we show that M. barkeri Fusaro tRNAPyl can be misacylated with serine by the M. barkeri bacteria...

journal_title：FEBS letters

authors： Gundllapalli S,Ambrogelly A,Umehara T,Li D,Polycarpo C,Söll D

更新日期：2008-10-15 00:00:00