Pyrroloquinoline-quinone: a reactive oxygen species scavenger in bacteria.

abstract：:We solved the crystal structure of a functionally uncharacterized protein, HP0902, from Helicobacter pylori. Its structure demonstrated an all-β cupin fold that cannot bind metal ions due to the absence of a metal-binding histidine that is conserved in many metallo-cupins. In contrast, isothermal titration calorimetry...

journal_title：FEBS letters

authors： Sim DW,Kim JH,Kim HY,Jang JH,Lee WC,Kim EH,Park PJ,Lee KH,Won HS

更新日期：2016-09-01 00:00:00

abstract：:The photophobic receptor (psRII) and its transducer pHtrII from Natronobacterium pharaonis were heterologously coexpressed in the phototaxis-deficient Halobacterium salinarium strain Pho81/w which lacks all four bacterial rhodopsins, i.e. the two ion pumps bacteriorhodopsin and halorhodopsin as well as the two sensory...

journal_title：FEBS letters

authors： Lüttenberg B,Wolff EK,Engelhard M

更新日期：1998-04-10 00:00:00

abstract：:This paper reviews our present knowledge of sphingomyelinases as enzymes, and as enzymes acting on a membrane constituent lipid, sphingomyelin. Six types of sphingomyelinases are considered, namely acidic, secretory, Mg(2+)-dependent neutral, Mg(2+)-independent neutral, alkaline, and bacterial enzymes with both phosph...

journal_title：FEBS letters

authors： Goñi FM,Alonso A

更新日期：2002-10-30 00:00:00

abstract：:hsp25 is a small, growth-related, mammalian stress protein which is highly accumulated in the stationary phase of Ehrlich ascites tumor in vivo. Ehrlich ascites cells cultivated in vitro under conditions of continuous exponential growth express hsp25 only at a low level. These cells were stably transfected with an euk...

journal_title：FEBS letters

authors： Knauf U,Bielka H,Gaestel M

更新日期：1992-09-14 00:00:00

abstract：:The type 1 ribosome-inactivating protein (RIP) saporin 5 isolated from seeds of Saponaria officinalis L. strongly inhibited translation carried out by Vicia sativa L. purified ribosomes. The toxin multidepurinated V. sativa rRNA, which upon treatment with acid aniline releases several RNA fragments including an RNA fr...

journal_title：FEBS letters

authors： Iglesias R,Arias FJ,Rojo MA,Escarmis C,Ferreras JM,Girbés T

更新日期：1993-07-05 00:00:00

abstract：:Pigeon liver malic enzyme (EC 1.1.1.40) has a double dimer quaternary structure. The NADP+ analogs, aminopyridine adenine dinucleotide phosphate and nicotinamide-1,N6-ethenoadenosine dinucleotide phosphate, bind to the enzyme anti-cooperatively. In the presence of non-cooperative competing ligand NADP+, the binding pa...

journal_title：FEBS letters

authors： Lee HJ,Chang GG

更新日期：1990-12-17 00:00:00

abstract：:The present study was designed to investigate whether and how the purinergic stimulation of rat ventricular myocytes modulates the cAMP-dependent pathway. Stimulation of cardiomyocytes with ATPgammaS in the presence of the phosphodiesterase inhibitor IBMX increases by 3-fold intracellular cAMP content. In contrast to ...

journal_title：FEBS letters

authors： Pucéat M,Bony C,Jaconi M,Vassort G

更新日期：1998-07-17 00:00:00

abstract：:The Escherichia coli twin-arginine translocation (Tat) system serves to export fully folded protein substrates across the bacterial cytoplasmic membrane. Respiratory [NiFe] hydrogenases are synthesised as precursors with twin-arginine signal peptides and transported as large, cofactor-containing, multi-subunit complex...

journal_title：FEBS letters

authors： Dubini A,Sargent F

更新日期：2003-08-14 00:00:00

abstract：:We synthesized the zwitterionic amphiphile cholesterylphosphorylethylpyridinium. This substance activated protein kinase C (PKC) in a micelle-based assay, but in a vesicle assay it was inhibitory. An analog of this compound, in which the pyridine ring is saturated and the nitrogen methylated, showed similar behaviour ...

journal_title：FEBS letters

authors： Epand RM,Stafford A,Wang J,Epand RF

更新日期：1992-06-15 00:00:00

abstract：:Casein kinase-II (CK-II) belongs to the protein kinases recognizing serine/threonine in proximity to acidic residues in protein substrates. Crystallography and mutagenesis studies on the cAMP-dependent protein kinase (PKA) disclosed that glutamic acid-170 (E170), is important for interaction of substrates with the enz...

journal_title：FEBS letters

authors： Dobrowolska G,Meggio F,Marin O,Lozeman FJ,Li D,Pinna LA,Krebs EG

更新日期：1994-12-05 00:00:00

abstract：:VASP (vasodilator-stimulated phosphoprotein), a protein associated with microfilaments at cellular contact sites, has been identified as a ligand for profilin and zyxin, two proteins also involved in microfilament dynamics and organization at these regions. Here, we report that VASP also directly binds to vinculin, an...

journal_title：FEBS letters

authors： Reinhard M,Rüdiger M,Jockusch BM,Walter U

更新日期：1996-12-09 00:00:00

abstract：:The Ca2+ receptor mechanism of the parathyroid cell was studied using La3+ as a probe. La3+ was found to bind to the cell surface without further penetration. Measurements of 45Ca fluxes and the cytoplasmic Ca2+ concentration (Ca2+i) revealed a stimulatory component in the action of La3+ on Ca2+ permeability resulting...

journal_title：FEBS letters

authors： Gylfe E,Larsson R,Johansson H,Nygren P,Rastad J,Wallfelt C,Akerström G

更新日期：1986-09-01 00:00:00

abstract：:Two fatty acid ethyl ester (FAEE) synthase isoenzymes purified from human myocardium were reported to be glutathione S-transferases (GST) [(1989) Proc. Natl. Acad. Sci. USA 86, 4470-4473; and (1989) J. Clin. Invest. 84, 1942-1946]. In the present study, the FAEE synthase activity of several purified and well character...

journal_title：FEBS letters

authors： Suzuki T,Kovacs MS,Board PG

更新日期：1990-11-26 00:00:00

abstract：:Chemotaxis induction is a major effect evoked by stimulation of the chemokine receptor CXCR4 with its sole ligand CXCL12. We now report that treatment of CHP-100 human neuroepithelioma cells with the glucosylceramide synthase (GCS) inhibitor DL-threo-1-phenyl-2-hexadecanoylamino-3-pyrrolidino-1-propanol inhibits CXCR4...

journal_title：FEBS letters

authors： Limatola C,Massa V,Lauro C,Catalano M,Giovanetti A,Nuccitelli S,Spinedi A

更新日期：2007-06-12 00:00:00

abstract：:HSP73, the constitutive form of heat-shock protein 70, has been implicated in the translocation of preproteins across the mitochondrial membranes, being required for maintaining mitochondrial preproteins in an import competent conformation. Here we report that highly purified mitochondrial outer membranes contain a pr...

journal_title：FEBS letters

authors： Lithgow T,Ryan M,Anderson RL,Høj PB,Hoogenraad NJ

更新日期：1993-10-18 00:00:00

abstract：:We employed cDNA representational difference analysis to identify new genes that are upregulated by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) in a human hepatoblastoma cell line HepG2. We isolated several TCDD-responsive cDNAs. Sequence analysis revealed that one of them encodes E16/CD98LC/hLAT1, an integral membrane...

journal_title：FEBS letters

authors： Sarkar D,Kambe F,Hirata A,Iseki A,Ohmori S,Seo H

更新日期：1999-12-03 00:00:00

abstract：:Antibodies to a synthetic peptide from the 'amphipathic helix' of the alpha-chain of the nicotinic acetylcholine receptor (nAChR) bound both to detergent-solubilised and membrane-bound nAChR, indicating that this region, suggested as a component of the transmembrane ion channel in one model, is not buried in the membr...

journal_title：FEBS letters

authors： Roth B,Schwendimann B,Hughes GJ,Tzartos SJ,Barkas T

更新日期：1987-08-31 00:00:00

abstract：:In hepatocytes from control rats, the ureogenic action of epinephrine is mainly mediated through alpha 1-adrenoceptors and the effect is independent of the presence of extracellular calcium. In hepatocytes from adrenalectomized rats, both alpha 1- and beta-adrenoceptors are involved in the action of epinephrine. Furth...

journal_title：FEBS letters

authors： Hernández-Sotomayor SM,García-Sáinz JA

更新日期：1984-01-30 00:00:00

abstract：:Cyclic ADP-ribose (cADPR) is a natural metabolite of beta-NAD+ with a potent Ca2+-mobilizing activity in different cell types, including T-lymphocytes. We investigated (i) whether stimulation of T-lymphocytes with different agonists affects the intracellular concentration of cADPR, and (ii) whether the lymphocyte anti...

journal_title：FEBS letters

authors： da Silva CP,Schweitzer K,Heyer P,Malavasi F,Mayr GW,Guse AH

更新日期：1998-11-20 00:00:00

abstract：:Pioneer crystallographic studies of the isolated 30S ribosomal subunit provided the first structural insights into the decoding process. Recently, new crystallographic data on full 70S ribosomes with mRNA and tRNAs have shown that the formation of the tight decoding centre is ensured by conformational rearrangement of...

journal_title：FEBS letters

authors： Demeshkina N,Jenner L,Westhof E,Yusupov M,Yusupova G

更新日期：2013-06-27 00:00:00

abstract：:Magnesium (Mg(2+)) transport across membranes plays an essential role in cellular growth and survival. TRPM7 is the unique fusion of a Mg(2+) permeable pore with an active cytosolic kinase domain, and is considered a master regulator of cellular Mg(2+) homeostasis. We previously found that the genetic deletion of TRPM...

journal_title：FEBS letters

authors： Deason-Towne F,Perraud AL,Schmitz C

更新日期：2011-07-21 00:00:00

abstract：:Myogenesis is conducted by transcription factors including MyoD and myogenin. Myogenin is known to be polyubiquitinated by SCF (Skp1/Cullin 1/F-box protein) followed by proteasomal degradation, though the participating F-box protein is remaining unidentified. In this study, we found that myogenin in differentiated myo...

journal_title：FEBS letters

authors： Jogo M,Shiraishi S,Tamura TA

更新日期：2009-09-03 00:00:00

abstract：:Formation of tubulin/Na(+),K(+)-ATPase (NKA) complex in erythrocytes of hypertensive subjects results in a 50% reduction in NKA activity. We demonstrate here that detyrosinated tubulin, which is increased in hypertensive erythrocytes membranes, enhances the inhibitory effect of acetylated tubulin on NKA activity. More...

journal_title：FEBS letters

authors： Amaiden MR,Santander VS,Monesterolo NE,Nigra AD,Rivelli JF,Campetelli AN,Pie J,Casale CH

更新日期：2015-01-30 00:00:00

abstract：:Auxin increases phospholipase A(2) activity within 2min (Paul, R., Holk, A. and Scherer, G.F.E. (1998) Fatty acids and lysophospholipids as potential second messengers in auxin action. Rapid activation of phospholipase A(2) activity by auxin in suspension-cultured parsley and soybean cells. Plant J. 16, 601-611) and t...

journal_title：FEBS letters

authors： Scherer GF,Zahn M,Callis J,Jones AM

更新日期：2007-09-04 00:00:00

abstract：:Sigma factor binding proteins are involved in modifying the promoter preferences of the RNA polymerase in bacteria. We found the nuclear encoded protein (SibI) that is transported into chloroplasts and interacts specifically with the region 4 of Sig1 in Arabidopsis. SibI and its homologue, T3K9.5 are novel proteins, w...

journal_title：FEBS letters

authors： Morikawa K,Shiina T,Murakami S,Toyoshima Y

更新日期：2002-03-13 00:00:00

abstract：:Elastic fibers in vessel walls and other tissues consist of cross-linked tropoelastin in association with several microfibrillar proteins. In order to understand the molecular basis of these structures, we examined the binding of recombinant human tropoelastin to other extracellular matrix ligands in solid phase bindi...

journal_title：FEBS letters

authors： Sasaki T,Göhring W,Miosge N,Abrams WR,Rosenbloom J,Timpl R

更新日期：1999-10-29 00:00:00

abstract：:The glucuronic acid analogue of 1-deoxynojirimycin, 2(S)-carboxy-3(R), 4(R), 5(S)-trihydroxypiperidine, recently isolated from seeds of Baphia racemosa, is a novel specific inhibitor of human liver beta-D-glucuronidase and alpha-L-iduronidase. No other glycosidases are inhibited. The inhibition of beta-D-glucuronidase...

journal_title：FEBS letters

authors： Cenci di Bello I,Dorling P,Fellows L,Winchester B

更新日期：1984-10-15 00:00:00

abstract：:To demonstrate the interaction of calpastatin (CS) domain L (CSL) with Cav1.2 channel, we investigated the binding of CSL with various C-terminus-derived peptides at≈free, 100 nM, 10 μM, and 1mM Ca(2+) by using the GST pull-down assay method. Besides binding with the IQ motif, CSL was also found to bind with the PreIQ...

journal_title：FEBS letters

authors： Sun W,Feng R,Hu H,Guo F,Gao Q,Shao D,Yin D,Wang H,Sun X,Zhao M,Minobe E,Sun Y,Jiao G,Kameyama M,Hao L

更新日期：2014-03-03 00:00:00

abstract：:Constitutively active tyrosine kinases are frequently expressed in various types of human leukemias as the result of chromosomal translocations. The TEL-Jak2 fusion oncoprotein possesses transforming properties in both animal and cellular models, that are tightly dependent on Stat5 activation. In the IL-3-independent ...

journal_title：FEBS letters

authors： Santos SC,Monni R,Bouchaert I,Bernard O,Gisselbrecht S,Gouilleux F,Penard-Lacronique V

更新日期：2001-05-25 00:00:00

abstract：:Histone H1(0) is found in tissues with little or no cellular proliferation and has been shown to accumulate during cellular terminal differentiation. Two subtypes of H1(0), H1 a and H1 b, are present in any tissue where the protein has been detected. We report here the first evidence of an age-dependent change in the ...

journal_title：FEBS letters

authors： Piña B,Suau P

更新日期：1987-01-05 00:00:00