Insights into the formation of carlactone from in-depth analysis of the CCD8-catalyzed reactions.

abstract：:The Na-Ca exchanger is essential for the Ca2+ homeostasis in many cell types. This transporter has been difficult to investigate because no specific inhibitor is available. We have synthesized an antisense oligodeoxynucleotide directed against the rat cardiac Na-Ca exchanger mRNA. To estimate the activity of the Na-Ca...

journal_title：FEBS letters

authors： Lipp P,Schwaller B,Niggli E

更新日期：1995-05-08 00:00:00

abstract：:Gibberellins are ent-kaurene-derived diterpenoid phytohormones produced by plants, fungi, and bacteria. The distinct gibberellin biosynthetic pathways in plants and fungi are known, but not that in bacteria. Plants typically use two diterpene synthases to form ent-kaurene, while fungi use only a single bifunctional di...

journal_title：FEBS letters

authors： Morrone D,Chambers J,Lowry L,Kim G,Anterola A,Bender K,Peters RJ

更新日期：2009-01-22 00:00:00

abstract：:In Graves' disease (GD) the presence of antibodies to the thyroid stimulating hormone (TSH) receptor leads to stimulation of the thyroid gland. The thyroid stimulating activity of Graves' IgG is normally ascertained by bioassays measuring cAMP production. We have investigated the effect of Graves' IgG on the quantitat...

journal_title：FEBS letters

authors： Kung AW,Collison K,Banga JP,McGregor AM

更新日期：1988-05-09 00:00:00

abstract：:The conversion of the cellular prion protein into the beta-sheet-rich scrapie prion protein is thought to be the key step in the pathogenesis of prion diseases. To gain insight into this structural conversion, we analyzed the intrinsic structural propensity of the amino acid sequence of the murine prion C-terminal dom...

journal_title：FEBS letters

authors： Jamin N,Coïc YM,Landon C,Ovtracht L,Baleux F,Neumann JM,Sanson A

更新日期：2002-10-09 00:00:00

abstract：:Our previous study documented the expression of Mta1 during spermatogenesis. Here, we present evidence for a possible involvement of Mta1 in the regulation of testicular function, possibly by interacting with p53. A notable decrease of Mta1 expression was revealed at postsurgical day 6, consistent with the previously ...

journal_title：FEBS letters

authors： Li W,Bao W,Ma J,Liu X,Xu R,Wang RA,Zhang Y

更新日期：2008-03-19 00:00:00

abstract：:Structure-based drug design requires the development of efficient computer programs for exploring the structural compatibility of various flexible ligands with a given receptor. While various algorithms are available for finding docked conformations, selecting a target function that can reliably score the conformation...

journal_title：FEBS letters

authors： King BL,Vajda S,DeLisi C

更新日期：1996-04-08 00:00:00

abstract：:When the eicosapentaenoic acid (EPA)-deficient mutant strain IK-1Delta8 of the marine EPA-producing Shewanella marinintestina IK-1 was treated with various concentrations of hydrogen peroxide (H(2)O(2)), its colony-forming ability decreased more than that of the wild type. Protein carbonylation, induced by treating ce...

journal_title：FEBS letters

authors： Nishida T,Morita N,Yano Y,Orikasa Y,Okuyama H

更新日期：2007-09-04 00:00:00

abstract：:The effect of the uremic solute indoxyl sulfate (IS) on scavenging superoxide anion radicals (O(2)(*-)) generated from both the xanthine/xanthine oxidase (X/XO) system and activated neutrophils was investigated by electron paramagnetic resonance spectroscopy, combined with 2-ethoxycarbonyl-2-methyl-3,4-dihydro-2H-pyrr...

journal_title：FEBS letters

authors： Miyamoto Y,Iwao Y,Tasaki Y,Sato K,Ishima Y,Watanabe H,Kadowaki D,Maruyama T,Otagiri M

更新日期：2010-07-02 00:00:00

abstract：:The nucleotide sequences of the dnaQ genes from Salmonella typhimurium and Buchnera aphidicola, encoding the epsilon-subunit of the DNA polymerase III holoenzyme, have been determined. The Salmonella typhimurium dnaQ protein consists of 243 amino acid residues with a calculated molecular weight of 27224. The Buchnera ...

journal_title：FEBS letters

authors： Huang Y,Braithwaite DK,Ito J

更新日期：1997-01-02 00:00:00

abstract：:Macrophage cyclooxygenase-2 (COX-2) transcription is mediated through the collaboration of different promoter elements. Here, the role of an overlapping cyclic AMP responsive element (CRE)/E-box was investigated. Nuclear proteins bound both the CRE and E-box, which synergized with other promoter elements to induce COX...

journal_title：FEBS letters

authors： Mestre JR,Rivadeneira DE,Mackrell PJ,Duff M,Stapleton PP,Mack-Strong V,Maddali S,Smyth GP,Tanabe T,Daly JM

更新日期：2001-05-11 00:00:00

abstract：:Guanylate cyclase activity was measured in disrupted rod outer segments of the toad retina. The experiments showed that cGMP is synthesized from GTP at a rate of 3 +/- 1 nmol/min per mg protein. In darkness this value is largely independent of the Ca2+ concentration, while it is enhanced by flashes of light of increas...

journal_title：FEBS letters

authors： Pepe IM,Panfoli I,Cugnoli C

更新日期：1986-07-14 00:00:00

abstract：:Because A2 adenosine receptor activation stimulates adenylate cyclase and cyclic AMP induces 5'-nucleotidase expression in rat mesangial cells, we examined the effect of adenosine and its analogs on 5'-nucleotidase activity in these cells. A2 adenosine receptors were characterized using [3H]5'-N-ethylcarboxamidoadenos...

journal_title：FEBS letters

authors： Stefanovic V,Vlahovic P,Savic V,Ardaillou N,Ardaillou R

更新日期：1993-09-27 00:00:00

abstract：:DNA complementary to chicken ultimobranchial gland mRNA was cloned into the Pst I site of plasmid vector pBR322. A plasmid was selected by DNA-mRNA hybridization. We report here the partial nucleotide sequence of chicken calcitonin mRNA and the deduced complete amino acid sequence of chicken calcitonin. ...

journal_title：FEBS letters

authors： Lasmoles F,Jullienne A,Desplan C,Milhaud G,Moukhtar MS

更新日期：1985-01-21 00:00:00

abstract：:Gustatory papillae and associated taste buds receive and process chemical information from the environment. In mammals, their development takes place during the late phase of embryogenesis. However, the cellular factors that regulate the differentiation of taste papillae remain largely unknown. Here, we show by quanti...

journal_title：FEBS letters

authors： Ortíz-Alvarado R,Guzmán-Quevedo O,Mercado-Camargo R,Haertle T,Vignes C,Bolaños-Jiménez F

更新日期：2006-10-02 00:00:00

abstract：:The present report provides evidence that, in A431 cells, interferon gamma (IFNgamma) induces the rapid (within 5 min), and reversible, tyrosine phosphorylation of the epidermal growth factor receptor (EGFR). IFNgamma-induced EGFR transactivation requires EGFR kinase activity, as well as activity of the Src-family tyr...

journal_title：FEBS letters

authors： Burova E,Vassilenko K,Dorosh V,Gonchar I,Nikolsky N

更新日期：2007-04-03 00:00:00

abstract：:The transmembrane protein MIG-13 is a key regulator required for anterior migration of neural cells in Caenorhabditis elegans, but the signaling mechanisms involved remain unknown. Here, we isolated a suppressor mutation in the unc-71/adm-1 gene, which rescued the AVM neuron migration defect in mig-13 mutants. Genetic...

journal_title：FEBS letters

authors： Masuda H,Nakamura K,Takata N,Itoh B,Hirose T,Moribe H,Mekada E,Okada M

更新日期：2012-03-23 00:00:00

abstract：:Transcarboxylase from Propionibacterium shermanii is a complex biotin-containing enzyme composed of 30 polypeptides of three different types. It is composed of six dimeric outer subunits associated with a central cylindrical hexameric subunit through 12 biotinyl subunits; three outer subunits on each face of the centr...

journal_title：FEBS letters

authors： Thornton CG,Kumar GK,Shenoy BC,Haase FC,Phillips NF,Park VM,Magner WJ,Hejlik DP,Wood HG,Samols D

更新日期：1993-09-13 00:00:00

abstract：:The profiling of grapevine (Vitis vinifera L.) genes under water deficit was specifically targeted to sugar transporters. Leaf water status was characterized by physiological parameters and soluble sugars content. The expression analysis provided evidence that VvHT1 hexose transporter gene was strongly down-regulated ...

journal_title：FEBS letters

authors： Medici A,Laloi M,Atanassova R

更新日期：2014-11-03 00:00:00

abstract：:Bcl-xL, a close homolog of Bcl2, is an important regulator of apoptosis and is overexpressed in human cancer. Phosphorylation of Bcl-xL can be induced by microtubule-damaging drugs such as taxol or 2-methoxyestradiol (2-ME). By site-directed mutagenesis studies, we have identified that serine 62 is the necessary site ...

journal_title：FEBS letters

authors： Basu A,Haldar S

更新日期：2003-03-13 00:00:00

abstract：:Purified barley leaf ADP-glucose pyrophosphorylase, a key enzyme of the starch synthesis in the chloroplast stroma, was analysed with respect to its possible regulation by factors defining the metabolic/effector status of the chloroplast during light and dark conditions. The enzyme required 3-phosphoglyceric acid for ...

journal_title：FEBS letters

authors： Kleczkowski LA

更新日期：1999-04-01 00:00:00

abstract：:Soluble factors derived from human CD8+ T-lymphocytes inhibit HIV-1 replication by suppressing transcription from the viral long terminal repeat (LTR), an effect shown to be mediated in part by an NFAT-1 enhancer sequence. We show here that the CD8+ derived beta-chemokines, RANTES, MIP1-alpha, and MIP-1beta, known sup...

journal_title：FEBS letters

authors： Handen JS,Rosenberg HF

更新日期：1997-06-30 00:00:00

abstract：:The degradation of type IX collagen, a minor collagen in cartilage, was examined by treatment with three different types of matrix metalloproteinases (MMPs) purified from the culture medium of rheumatoid synovial cells. Neither MMP-1 (collagenase) nor MMP-2 (so-called 'gelatinase') could digest type IX collagen, but M...

journal_title：FEBS letters

authors： Okada Y,Konomi H,Yada T,Kimata K,Nagase H

更新日期：1989-02-27 00:00:00

abstract：:Activation of p53 plays a central role in the cell's response to various stress signals. We investigated whether p53 is activated upon disruption of actin microfilaments, caused by cytochalasin D (CD). We show that treatment with CD leads to accumulation of p53 in the cells and activation of p53-dependent transcriptio...

journal_title：FEBS letters

authors： Rubtsova SN,Kondratov RV,Kopnin PB,Chumakov PM,Kopnin BP,Vasiliev JM

更新日期：1998-07-03 00:00:00

abstract：:Decarboxylation of pyruvate by pyruvate decarboxylase (EC 4.1.1.1) was performed in a reaction mixture containing 50% deuterium. The isolated product, acetaldehyde, was investigated directly by 1H NMR and by mass spectrometry after conversion to the 2,4-dinitrophenyl hydrazone. The protium content of 56% at acetaldehy...

journal_title：FEBS letters

authors： Ermer J,Schellenberger A,Hübner G

更新日期：1992-03-09 00:00:00

abstract：:The spatial relationship of polypeptides comprising the light-harvesting B800-850 complex of Chromatium minutissimum has been studied by means of chemical crosslinking of the isolated complex with cleavable, 1.2 nm-long dithiobis(succinimidyl propionate). The samples were analyzed by different types of electrophoresis...

journal_title：FEBS letters

authors： Moskalenko AA,Toropygina OA

更新日期：1993-03-29 00:00:00

abstract：:The biosynthesis of human tumor necrosis factor (hTNF) was studied. The amino-terminal extension of the hTNF precursor (26 kDa polypeptide) was not cleaved off in a cell-free system supplemented with dog pancreas microsomes. Correct maturation of pre-hTNF was nevertheless not restricted to the macrophage system: in th...

journal_title：FEBS letters

authors： Müller R,Marmenout A,Fiers W

更新日期：1986-03-03 00:00:00

abstract：:The retromer complex is a key element of the endosomal protein sorting machinery that is conserved through evolution and has been shown to play a role in diseases such as Alzheimer's disease and Parkinson's disease. Through sorting various membrane proteins (cargo), the function of retromer complex has been linked to ...

journal_title：FEBS letters

authors： Mukadam AS,Seaman MN

更新日期：2015-09-14 00:00:00

abstract：:The aim of this work was to study the effect of a sustained activation of AMP-activated protein kinase (AMPK) on liver cell survival. AMPK activation was achieved by incubating FTO2B cells with AICA-riboside, which is transformed into ZMP, an AMP analogue, or by adenoviral transfection of hepatocytes with a constituti...

journal_title：FEBS letters

authors： Meisse D,Van de Casteele M,Beauloye C,Hainault I,Kefas BA,Rider MH,Foufelle F,Hue L

更新日期：2002-08-28 00:00:00

abstract：:The mutation of a single leucine residue (L38) to methionine (M) is known experimentally to significantly increase the affinity of the synthetic four-alpha-helix bundle (Aalpha(2))(2) for the anesthetic halothane. We present a molecular dynamics study of the mutant (Aalpha(2)-L38M)(2) peptide, which consists of a dime...

journal_title：FEBS letters

authors： Davies LA,Zhong Q,Klein ML,Scharf D

更新日期：2000-07-28 00:00:00

abstract：:The action of substrate analogs containing the tetrazolyl group instead of the C-terminal carboxy group on the peptidase activity of carboxypeptidase A is studied. The analogs compete with the substrate for the secondary binding site thus showing activation phenomena. ...

journal_title：FEBS letters

authors： Kojro E,Willhardt I,Römbach A,Grzonka Z,Hermann P

更新日期：1987-02-09 00:00:00