Differences in catalytic activity between rat testicular and ovarian carbonyl reductases are due to two amino acids.

abstract：:Transforming growth factors-beta (TGFbeta1, 2 and 3) are secreted in a complex with their propeptides (latency-associated peptide 1 (LAP1), 2 and 3). TGFbeta signaling requires the dissociation of LAP and TGFbeta, a process termed latent TGFbeta activation. This process is a critical but incompletely understood step i...

journal_title：FEBS letters

authors： Annes JP,Rifkin DB,Munger JS

更新日期：2002-01-30 00:00:00

abstract：:We have previously reported that Monad, a novel WD40 repeat protein, potentiates apoptosis induced by tumor necrosis factor-alpha(TNF-alpha) and cycloheximide (CHX). By affinity purification and mass spectrometry, we identified RNA polymerase II-associated protein 3 (RPAP3) as a binding protein of Monad. Overexpressio...

journal_title：FEBS letters

authors： Itsuki Y,Saeki M,Nakahara H,Egusa H,Irie Y,Terao Y,Kawabata S,Yatani H,Kamisaki Y

更新日期：2008-07-09 00:00:00

abstract：:Botulinum neurotoxins (BoNTs), the causative agent of human botulism, are the most potent naturally occurring toxins known. BoNT/A1, the most studied BoNT, is also used as an important biopharmaceutical. In this study, the biological activity of BoNT/A1 is compared to that of BoNT/A2 using neuronal cell models. The da...

journal_title：FEBS letters

authors： Pier CL,Chen C,Tepp WH,Lin G,Janda KD,Barbieri JT,Pellett S,Johnson EA

更新日期：2011-01-03 00:00:00

abstract：:Selenium-dependent glutathione peroxidase activity is documented for the first time in insects. Reduction in glutathione peroxidase activity in the cytosol of adult house flies by lowering selenium in the diet results in significant increases in peroxidative injury. Catalase activity, while higher in low-selenium flie...

journal_title：FEBS letters

authors： Simmons TW,Jamall IS,Lockshin RA

更新日期：1987-06-29 00:00:00

abstract：:We report the identification, gene expression and biological activity of two parathyroid hormones (PTH; PTHA and PTHB), two PTH-related peptides (PTHrP; PTHrPA and PTHrPB) and a PTH-like ligand (PTH-L) with hybrid characteristics in puffer fishes (Takifugu rubripes and Tetraodon fluviatilis). Experimental data are con...

journal_title：FEBS letters

authors： Canario AV,Rotllant J,Fuentes J,Guerreiro PM,Rita Teodósio H,Power DM,Clark MS

更新日期：2006-01-09 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：:In C4 plants the activity of phosphoenolpyruvate carboxylase (PEPC; EC 4.1.1.31) is regulated by phosphorylation/dephosphorylation which is mediated by light/dark signals. The study using protein kinase inhibitors showed that the inhibition pattern of maize PEPC-protein kinase (PEPC-PK) is similar to that of myosin li...

journal_title：FEBS letters

authors： Ogawa N,Okumura S,Izui K

更新日期：1992-05-04 00:00:00

abstract：:Highly active adenylylsulfate (APS) reductase was isolated under N(2)/H(2) from sulfate-reducing and sulfide-oxidizing bacteria and archaea. It was a 1:1 alphabeta-heterodimer of molecular mass approximately 95 kDa, and two subunits (alpha approximately 75, beta approximately 20 kDa). The specific activity was 11-14 m...

journal_title：FEBS letters

authors： Fritz G,Büchert T,Huber H,Stetter KO,Kroneck PM

更新日期：2000-05-04 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：:In washed anterior pituitary membranes, there is enough GTP to occupy Ns and therefore to obtain activation of adenylate cyclase by vasointestinal peptide. GTP concentrations needed to obtain adenylate cyclase inhibition by dopamine (above 5 X 10- M) stimulate the adenylate cyclase. The dopamine effect is a blockade o...

journal_title：FEBS letters

authors： Bockaert J,Sebben-Perez M

更新日期：1983-09-05 00:00:00

abstract：:In order to identify physiological activators of proteinase-activated receptor-2 (PAR-2), a peptide chloromethane inhibitor (biotinyl-Ser-Lys-Gly-Arg-CH2Cl) based on the cleavage site for activation of PAR-2 was synthesised and tested with 12 trypsin-like serine proteinases. The second-order rate constant (ki/Ki) for ...

journal_title：FEBS letters

authors： Fox MT,Harriott P,Walker B,Stone SR

更新日期：1997-11-17 00:00:00

abstract：:To identify suitable promoters for expressing exogenous genes in arthritic joints, the constitutive, simian virus 40 (SV 40) and IL-1 or metal inducible, human stromelysin and metallothionein (MT) gene promoters were tested for their activity in chondrocytes and synovial fibroblasts. Transient transfection with plasmi...

journal_title：FEBS letters

authors： Su S,Gedamu L,Dehnade F,Zafarullah M

更新日期：1996-10-21 00:00:00

abstract：:The kinetics of AMP-aminohydrolase, which under steady state conditions shows a typical sigmoid dependence of initial velocities versus substrate concentration, have been examined by rapid mixing methods. Using this technique it was observed that when substrate or substrate plus activator (K(+)) were mixed with enzyme...

journal_title：FEBS letters

authors： Suelter CH,Kovacs AL,Antonini E

更新日期：1968-11-01 00:00:00

abstract：:The marked difference in auxin sensitivity between plant roots and shoots was studied in terms of auxin-induced stimulation of membrane P-type ATPase. The results suggest the existence in rice seedlings of, at least, two isoforms of soluble proteinous factors (SPF), SPF(I) and SPF(II), which are involved in the stimul...

journal_title：FEBS letters

authors： Kim D,Kim YS,Jung J

更新日期：1997-06-09 00:00:00

abstract：:The molecular basis and functional properties of a variant antithrombin (AT) protein. AT Budapest 3, were studied. A single base substitution was identified in codon 99, CTC----TTC, altering the normal leucine to phenylalanine. The proband presented with a history of venous thrombotic disease and was found to be homoz...

journal_title：FEBS letters

authors： Olds RJ,Lane DA,Boisclair M,Sas G,Bock SC,Thein SL

更新日期：1992-04-06 00:00:00

abstract：:DNA synthesis at primers d(pT)n, d(pA)n, d(pC)n, and d(pG)n in the presence of corresponding complementary templates and at hetero-oligoprimers complementary to M13 phage DNA was investigated. The values of both -log Km and log Vmax increased linearly if homo-oligoprimers contained less than 10 nucleotides. The length...

journal_title：FEBS letters

authors： Nevinsky GA,Nemudraya AV,Levina AS,Khomov VV

更新日期：1989-11-20 00:00:00

abstract：:The C-Jun N-terminal Kinase (JNK) inhibitor SP600125 is widely used to inhibit the JNK-mediated Bax activation and cell apoptosis. However, this report demonstrates that SP600125 synergistically enhances the dihydroartemisinin (DHA)-induced human lung adenocarcinoma cell apoptosis by accelerating Bax translocation and...

journal_title：FEBS letters

authors： Lu YY,Chen TS,Wang XP,Qu JL,Chen M

更新日期：2010-09-24 00:00:00

abstract：:Nine of the cbi genes from the 17.5 kb cob operon of Salmonella typhimurium previously shown by genetic studies to be involved in the biosynthesis of cobinamide from precorrin-2, have been subcloned and expressed in Escherichia coli. Seven of the gene products were found in the soluble fraction of cell lysates and hav...

journal_title：FEBS letters

authors： Roessner CA,Warren MJ,Santander PJ,Atshaves BP,Ozaki S,Stolowich NJ,Iida K,Scott AI

更新日期：1992-04-13 00:00:00

abstract：:Besides its canonical function of catalyzing the formation of telomeric repeats, many groups have recently reported non-canonical functions of hTERT in particular, and telomerase in general. Regulating transcription is the central basis of non-canonical functions of telomerase. However, unlike reverse transcriptase ac...

journal_title：FEBS letters

authors： Akıncılar SC,Low KC,Liu CY,Yan TD,Oji A,Ikawa M,Li S,Tergaonkar V

更新日期：2015-04-13 00:00:00

abstract：:Challenge of Rhodobacter capsulatus cells with the superoxide propagator methyl viologen resulted in the induction of a diaphorase activity identified as a member of the ferredoxin (flavodoxin)-(reduced) nicotinamide adenine dinucleotide phosphate (NADP(H)) reductase (FPR) family by N-terminal sequencing. The gene cod...

journal_title：FEBS letters

authors： Bittel C,Tabares LC,Armesto M,Carrillo N,Cortez N

更新日期：2003-10-23 00:00:00

abstract：:The range of delta-selectivity of linear and cyclic analogues of enkephalin in rat brain was found to be: [D-Pen2, L-Pen5] enkephalin (DPLPE) greater than [D-Pen2, D-Pen5] enkephalin (DPDPE) greater than [D-Thr2, Leu5] enkephalyl-Thr6 (DTLET) greater than [D-Ser2, Leu5] enkephalyl-Thr6 (DSLET). Saturation experiments ...

journal_title：FEBS letters

authors： Delay-Goyet P,Zajac JM,Rigaudy P,Foucaud B,Roques BP

更新日期：1985-04-22 00:00:00

abstract：:Mutations of the cysteines (positions 668 and 714) were generated in the IF2 C domain of Bacillus stearothermophilus translation initiation factor IF2. The corresponding proteins were characterized functionally and structurally. Most (yet not all) amino acid replacements at both positions resulted in severe reduction ...

journal_title：FEBS letters

authors： Misselwitz R,Welfle K,Krafft C,Welfle H,Brandi L,Caserta E,Gualerzi CO

更新日期：1999-10-15 00:00:00

abstract：:The interconversions of the inositol-containing lipids (PI, PI-P and PI-P2) and their products (DG, inositol phosphates and PA) in human and rabbit neutrophils stimulated with fMetLeuPhe and PMA have been examined. PMA causes only the phosphorylation of PI to PI-P whereas fMetLeuPhe causes phosphorylation of both PI a...

journal_title：FEBS letters

authors： Cockcroft S,Barrowman MM,Gomperts BD

更新日期：1985-02-25 00:00:00

abstract：:Stimuli which enhance secretion from parathyroid cells such as low extracellular Ca2+ or Mg2+ are associated with a decrease in the cytosolic Ca2+ concentration as measured by quin2. Current evidence suggests that increased production of inositol 1,4,5-triphosphate (IP3) releases Ca2+ from cellular stores thus increas...

journal_title：FEBS letters

authors： Epstein PA,Prentki M,Attie MF

更新日期：1985-08-19 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：:Quiescent fibroblasts derived from human fetal lung can be stimulated to reinitiate DNA synthesis by sequential addition of 3 nM IGF-1 and a low concentration (8 pM) of EGF or by continuous exposure to 10% fetal calf serum or 10 ng/ml PDGF. Bradykinin blocks the IGF-1 and EGF-dependent signals without affecting the re...

journal_title：FEBS letters

authors： Newman EL,Hyldahl L,Larsson O,Engström W,Rees AR

更新日期：1989-07-17 00:00:00

abstract：:Cyclic mononucleotides are messengers in plant stress responses. Here we show that hydrogen peroxide (H2O2) induces rapid net K(+)-efflux and Ca(2+)-influx in Arabidopsis roots. Pre-treatment with either 10μM cAMP or cGMP for 1 or 24h does significantly reduce net K(+)-leakage and Ca(2+)-influx, and in the case of the...

journal_title：FEBS letters

authors： Ordoñez NM,Marondedze C,Thomas L,Pasqualini S,Shabala L,Shabala S,Gehring C

更新日期：2014-03-18 00:00:00

abstract：:Creatine kinases (CK) play a prominent role in cell energy distribution through an energy shuttle between mitochondria and other organelles. Human brain CK was cloned and overexpressed in COS-7 cells. We then deleted His-65 and/or Pro-66 situated near the center of a flexible loop as shown by X-ray crystallography on ...

journal_title：FEBS letters

authors： Mourad-Terzian T,Steghens JP,Min KL,Collombel C,Bozon D

更新日期：2000-06-09 00:00:00

abstract：:The determination of protein structure by NMR is restricted at molecular masses above 10 kDa by overlapping resonances. One way of overcoming this problem is to label the protein with 15N. The conventional way to record 15N spectra is to use heteronuclear multiple-quantum coherence. We present here an alternative appr...

journal_title：FEBS letters

authors： Norwood TJ,Boyd J,Campbell ID

更新日期：1989-09-25 00:00:00

abstract：:The isolation and primary structure of a novel gastrointestinal peptide, designated valosin, is described. The peptide was purified from porcine upper gut extracts using an HPLC and N-terminal sequence screening strategy which depends on chromatographic and structural characteristics as isolation criterion. The amino ...

journal_title：FEBS letters

authors： Schmidt WE,Mutt V,Carlquist M,Kratzin H,Conlon JM,Creutzfeldt W

更新日期：1985-10-28 00:00:00