New potent inhibitors of aquaporins: silver and gold compounds inhibit aquaporins of plant and human origin.

abstract：:The astroglial growth factor (AGF), which induces a characteristic morphological change in cultured rat astroglial cells and stimulates their proliferation, was purified to homogeneity from bovine brain. Two different methods were used, the second one including heparin-Sepharose affinity chromatography. AGF is actuall...

journal_title：FEBS letters

authors： Pettmann B,Weibel M,Sensenbrenner M,Labourdette G

更新日期：1985-09-09 00:00:00

abstract：:The mitochondrial alternative oxidase is a diiron carboxylate quinol oxidase (Dox) found in plants and some fungi and protists, but not animals. The plastid terminal oxidase is distantly related to alternative oxidase and is most likely also a Dox protein. Database searches revealed that the alpha-proteobacterium Novo...

journal_title：FEBS letters

authors： Finnegan PM,Umbach AL,Wilce JA

更新日期：2003-12-18 00:00:00

abstract：:Protein glycosylation, which is a key post-translational event, is catalysed by the glycosyltransferase family of enzymes. There is an increasing body of evidence to suggest that these enzymes may themselves be glycosylated, possibly as an autocatalytic event. Using a novel in vitro system, we have investigated the ro...

journal_title：FEBS letters

authors： Breen KC

更新日期：2002-04-24 00:00:00

abstract：:Dosage compensation involves fine-tuning of gene expression at the level of entire chromosomes. The principles that assure selective targeting of the male X chromosome in Drosophila and the mechanism by which transcription levels are adjusted in a twofold range are still mysterious. We discuss the prevalent models in ...

journal_title：FEBS letters

authors： Straub T,Dahlsveen IK,Becker PB

更新日期：2005-06-13 00:00:00

abstract：:Ceramide-1-phosphate (CER-1-P) is emerging as a novel bioactive sphingolipid. It is formed by phosphorylation of ceramide catalyzed by ceramide kinase, and has been implicated in different cellular processes. Cer-1-P is mitogenic for fibroblasts, blocks apoptosis in macrophages, controls phagocytosis in neutrophils, a...

journal_title：FEBS letters

authors： Gómez-Muñoz A

更新日期：2004-03-26 00:00:00

abstract：:The conformation of the glycine-rich loop of adenylate kinase is described in detail. It forms a giant anion hole for a sulfate ion, which presumably mimicks a nucleotide phosphoryl group. This loop had been called flexible, because at pH values of 6 or below it is displaced in the crystal. In the region of this loop ...

journal_title：FEBS letters

authors： Dreusicke D,Schulz GE

更新日期：1986-11-24 00:00:00

abstract：:Abstract Type V adenylyl cyclase (AC) was stably over-expressed in HEK293 cells (293AC-V). Forskolin-stimulated cAMP accumulation in 293AC-V was 5 times as great as that in control cells. PMA, a protein kinase C (PKC) activator, enhanced cAMP accumulation in 293AC-V cells dose-and time-dependently and this enhancement...

journal_title：FEBS letters

authors： Kawabe Ji,Ebina T,Toya Y,Oka N,Schwencke C,Duzic E,Ishikawa Y

更新日期：1996-04-22 00:00:00

abstract：:The mammalian gonadotropin-releasing hormone (GnRH-I), which regulates reproduction, was the first isoform of GnRH that was identified in mammals. Recently, we and others have demonstrated the existence of a second isoform of GnRH in the brain of mammals. The presence of a third isoform of GnRH, GnRH-III, in the brain...

journal_title：FEBS letters

authors： Yahalom D,Chen A,Ben-Aroya N,Rahimipour S,Kaganovsky E,Okon E,Fridkin M,Koch Y

更新日期：1999-12-17 00:00:00

abstract：:A reversible two-step (native state<-->denatured state) folding mechanism based on equilibrium and stopped flow experiments is proposed for urea denaturation of the lipoyl-bearing domain (hbLBD) of human mitochondrial branched chain alpha-ketoacid dehydrogenase (BCKD) complex. The results from this circular dichroism ...

journal_title：FEBS letters

authors： Naik MT,Chang YC,Huang TH

更新日期：2002-10-23 00:00:00

abstract：:Fourier transform infrared spectroscopy has been used to study the solution structure and thermal stability of the extracellular fragment of human transferrin receptor (tfRt) at extracellular and endosomal pH. At extracellular pH tfRt is composed of 56% alpha-helix, 19% beta-sheet and 14% turns. Upon acidification to ...

journal_title：FEBS letters

authors： Hadden JM,Bloemendal M,Haris PI,van Stokkum IH,Chapman D,Srai SK

更新日期：1994-08-22 00:00:00

abstract：:SufC is an ATPase component of the SUF machinery, which is involved in the biosynthesis of Fe-S clusters. To gain insight into the function of this protein, we have determined the crystal structure of Escherichia coli SufC at 2.5A resolution. Despite the similarity of the overall structure with ABC-ATPases (nucleotide...

journal_title：FEBS letters

authors： Kitaoka S,Wada K,Hasegawa Y,Minami Y,Fukuyama K,Takahashi Y

更新日期：2006-01-09 00:00:00

abstract：:We report for the first time the identification of 25 microRNAs from tissues originating from chicken embryo and adult chicken. Most of the cloned microRNAs are expressed in both adult chickens and chicken embryos. Fourteen were identified without any prior prediction. One microRNA, miR-757, is thought to be chicken-s...

journal_title：FEBS letters

authors： Xu H,Wang X,Du Z,Li N

更新日期：2006-06-26 00:00:00

abstract：:Peptic digestion of bovine hemoglobin yields a fragment with antibacterial activity. This peptide was purified to homogeneity by a two-step procedure including anion exchange chromatography and preparative reversed-phase HPLC. Mass determination and fragmentation indicated that this peptide corresponded to the 1-23 fr...

journal_title：FEBS letters

authors： Froidevaux R,Krier F,Nedjar-Arroume N,Vercaigne-Marko D,Kosciarz E,Ruckebusch C,Dhulster P,Guillochon D

更新日期：2001-02-23 00:00:00

abstract：:The human H19 gene is a paternally imprinted oncofetal gene, highly expressed in several fetal tissues, down-regulated in nearly all adult tissues but re-expressed in carcinomas of tissues which express the gene in fetal life. It has no known protein product and till today, no function could be designated to H19 RNA. ...

journal_title：FEBS letters

authors： Ohana P,Kopf E,Bibi O,Ayesh S,Schneider T,Laster M,Tykocinski M,de Groot N,Hochberg A

更新日期：1999-07-02 00:00:00

abstract：:A high intake of dietary fat has been suggested to diminish mitochondrial functioning in skeletal muscle, possibly attributing to muscular fat accumulation. Here we show however, that an 8-week high-fat dietary intervention did not affect intrinsic functioning of rat skeletal muscle mitochondria assessed by respiromet...

journal_title：FEBS letters

authors： Hoeks J,Briedé JJ,de Vogel J,Schaart G,Nabben M,Moonen-Kornips E,Hesselink MK,Schrauwen P

更新日期：2008-02-20 00:00:00

abstract：:Cytotoxic effects were observed following 4 h incubation of human leukaemic cells with the iron chelator 1-hydroxypyridine-2-thione (omadine). Its cytotoxic activity was comparable to that of the cytotoxic drug doxorubicin. At the same concentration two other effective iron chelators, desferrioxamine and 1,2-dimethyl-...

journal_title：FEBS letters

authors： Kontoghiorghes GJ,Piga A,Hoffbrand AV

更新日期：1986-08-18 00:00:00

abstract：:The Alanine Serine Cysteine Transporter 2 (ASCT2) is involved in balancing the intracellular amino acid pool. This function is allowed by the antiport mechanism and the asymmetric specificity towards different neutral amino acids, distinctive of this transporter. In the present work, the interaction of the putative su...

journal_title：FEBS letters

authors： Scalise M,Pochini L,Pingitore P,Hedfalk K,Indiveri C

更新日期：2015-11-30 00:00:00

abstract：:Proteases not only play a fundamental role in numerous physiological processes, but are also involved in several human diseases including Alzheimer's disease (AD). A key protease implicated in AD is the so far unidentified gamma-secretase, which cleaves the membrane-bound beta-amyloid precursor protein (betaAPP) at th...

journal_title：FEBS letters

authors： Steiner H,Pesold B,Haass C

更新日期：1999-12-17 00:00:00

abstract：:WW domains harbor substrates containing proline-rich motifs, but the substrate specificity and binding mechanism remain elusive for those WW domains less amenable for structural studies, such as human WWP2 (hWWP2). Herein we have employed multiple techniques to investigate the second WW domain (WW2) in hWWP2. Our resu...

journal_title：FEBS letters

authors： Jiang J,Wang N,Jiang Y,Tan H,Zheng J,Chen G,Jia Z

更新日期：2015-07-08 00:00:00

abstract：:Human serum albumin (HSA) contains a single tryptophan residue at position 214. The emission properties of tryptophan 214 from recombinant albumins, namely, normal HSA, FDH-HSA and a methionine 218 HSA were examined. In all cases, the excited state lifetimes were best described by a two component model consisting main...

journal_title：FEBS letters

authors： Helms MK,Petersen CE,Bhagavan NV,Jameson DM

更新日期：1997-05-12 00:00:00

abstract：:Understanding protein beta structures has been hindered by the challenge of designing small, well-folded β-sheet systems. A β-capping motif was previously designed to help solve this problem, but not without limitations, as the termini of this β-cap were not fully available for chain extension. Combining Coulombic sid...

journal_title：FEBS letters

authors： Anderson JM,Kier BL,Shcherbakov AA,Andersen NH

更新日期：2014-12-20 00:00:00

abstract：:The ATPase activity of DnaK, the 70-kDa chaperone of Escherichia coli, is stimulated by an unfolded protein. However, the stimulation of the DnaK ATPase by unfolded bovine pancreatic trypsin inhibitor can only be observed at low DnaK protein concentrations. At higher DnaK concentrations, the ATPase activity of DnaK ca...

journal_title：FEBS letters

authors： Richarme G,Kohiyama M

更新日期：1993-05-17 00:00:00

abstract：:The 108-residue protein E. coli thioredoxin has been uniformly enriched to 50% with deuterium at all carbon-bound hydrogen positions. Isotropic mixing (i.e. TOCSY) experiments have been conducted for both the deuterated and natural-abundance samples. Using a 54 ms mixing time correlation peaks can be seen for all four...

journal_title：FEBS letters

authors： LeMaster DM

更新日期：1988-06-20 00:00:00

abstract：:The hypothesis that calpain subunits dissociate in the presence of Ca2+ has been tested by methods which avoid interference by Ca2+-induced aggregation and large subunit autolysis. Inactive Cys105Ser-m-calpain, bound either to Ni-NTA-agarose or to immobilized casein, after incubation with Ca2+, could be recovered in h...

journal_title：FEBS letters

authors： Dutt P,Arthur JS,Croall DE,Elce JS

更新日期：1998-10-09 00:00:00

abstract：:DNA-dependent RNA polymerase from blood forms and culture forms of the parasitic protozoan Trypanosoma brucei was resolved into multiple peaks of activity by DEAE-Sephadex chromatography. The enzyme from the two forms was found to be different by several criteria, suggesting that it is subject to developmental control...

journal_title：FEBS letters

authors： Tittawella I

更新日期：1988-01-25 00:00:00

abstract：:Temporary inhibition of the cysteine proteinases papain and cathepsin L was observed with several hairpin loop mutants of recombinant chicken cystatin at enzyme concentrations above nanomolar. Kinetic modelling of inhibition data, gel electrophoresis and amino acid sequencing revealed that reappearance of papain activ...

journal_title：FEBS letters

authors： Machleidt W,Nägler DK,Assfalg-Machleidt I,Stubbs MT,Fritz H,Auerswald EA

更新日期：1995-03-20 00:00:00

abstract：:In mammalian cells, the Bcl-2 and Bcl-x(L) proteins suppress programmed cell death whereas the topographically similar Bax protein accelerates the apoptotic process. Recently published data suggest that expression of the human Bax-alpha gene is lethal for the yeast Saccharomyces cerevisiae and that this toxicity can b...

journal_title：FEBS letters

authors： Greenhalf W,Stephan C,Chaudhuri B

更新日期：1996-02-12 00:00:00

abstract：:Beta-thymosins sequester G-actin and preserve a pool of monomers of actin which constitute an important prerequisite for cellular function of the microfilament system. To study the influence of paraquat binding to G-actin on the interaction of G-actin with thymosin beta4 we determined the apparent dissociation constan...

journal_title：FEBS letters

authors： Huff T,Cappelletti G,Hannappel E

更新日期：1998-04-03 00:00:00

abstract：:This study was designed to investigate changes in gene expression associated with stage-specific programmed cell death (PCD) in intersegmental muscles (ISMs) of the moth, Manduca sexta. The technique of differential display reverse transcription PCR was applied to compare mRNA levels before and after the onset of PCD ...

journal_title：FEBS letters

authors： Löw P,Talián GC,Sass M

更新日期：2005-09-12 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