Insertion of foreign random sequences of 120 amino acid residues into an active enzyme.

abstract：:African horse sickness virus (AHSV), a member of the orbivirus genus of the family Reoviridae, is an insect-vectored pathogen of horses of concern to the equine industry. Studies on AHSV replication and pathogenesis have been hampered by the lack of reverse genetics allowing targeted mutation of viral genomes. We demo...

journal_title：FEBS letters

authors： Matsuo E,Celma CC,Roy P

更新日期：2010-08-04 00:00:00

abstract：:Histone acetyltransferase activity was measured in isolated nuclei during the synchronous cell cycle of the myxomycete Physarum polycephalum. Nuclei were incubated with [14C]acetyl-coenzyme A and an excess of exogenous calf thymus histones. The activity is periodic during the cell cycle; it rises during the S-phase to...

journal_title：FEBS letters

authors： Golderer G,Loidl P,Gröbner P

更新日期：1987-10-05 00:00:00

abstract：:Recently, the existence and extended diversity of antimicrobial peptides has been revealed in two mussel species. These molecules are classified into four groups according to common features of their primary structure: defensins, mytilins, myticins and mytimycin. In Mytilus galloprovincialis, gene structure reveals sy...

journal_title：FEBS letters

authors： Mitta G,Vandenbulcke F,Roch P

更新日期：2000-12-15 00:00:00

abstract：:Monomeric and trimeric PS I complexes missing the three stromal subunits E,C and D (termed PS I core complexes) were prepared from the thermophilic cyanobacterium Synechococcus sp. by incubation with urea. The subunits E,C and D are sequentially removed. In the monomeric PS I the subunit C is removed with a half life ...

journal_title：FEBS letters

authors： Lüneberg J,Fromme P,Jekow P,Schlodder E

更新日期：1994-01-31 00:00:00

abstract：:Hell's Gate globin I (HGbI), a heme-containing protein structurally homologous to mammalian neuroglobins, has been identified from an acidophilic and thermophilic obligate methanotroph, Methylacidiphilum infernorum. HGbI has very high affinity for O(2) and shows barely detectable autoxidation in the pH range of 5.2-8....

journal_title：FEBS letters

authors： Teh AH,Saito JA,Baharuddin A,Tuckerman JR,Newhouse JS,Kanbe M,Newhouse EI,Rahim RA,Favier F,Didierjean C,Sousa EH,Stott MB,Dunfield PF,Gonzalez G,Gilles-Gonzalez MA,Najimudin N,Alam M

更新日期：2011-10-20 00:00:00

abstract：:Impaired functioning of the proteasome pathway is one of the molecular mechanism underlying neurodegenerative changes in Alzheimer's disease. In this study, we report that dysfunction of the proteasome pathway in astroglial cells leads to decreased survival and dysregulation of chemokines by differential regulation of...

journal_title：FEBS letters

authors： Choi K,Lee J,Choi C

更新日期：2007-10-02 00:00:00

abstract：:Two-dimensional crystalline arrays of annexin IV were generated by interaction of the purified protein with a phospholipid monolayer. Image analysis of electron micrographs of the protein crystals, which diffracted to 3.5 nm respectively, revealed p6 and p3 symmetry. Annexin IV gave two crystal forms with unit cells o...

journal_title：FEBS letters

authors： Newman RH,Leonard K,Crumpton MJ

更新日期：1991-02-11 00:00:00

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：:Escherichia coli maltose-binding protein (MBP) is frequently used as an affinity tag to facilitate the purification of recombinant proteins. An important additional attribute of MBP is its remarkable ability to enhance the solubility of its fusion partners. MBPs are present in a wide variety of microorganisms includin...

journal_title：FEBS letters

authors： Fox JD,Routzahn KM,Bucher MH,Waugh DS

更新日期：2003-02-27 00:00:00

abstract：:Dendritic cells (DC) were enriched from murine spleen by exploring their intermediate density and transient weak adherence. The isolated population contained excellent antigen presenting cells with high surface expression of major histocompatibility complex (MHC) class II determinants thus exhibiting crucial immunofun...

journal_title：FEBS letters

authors： Fischer HG,Eder C

更新日期：1995-10-09 00:00:00

abstract：:We have investigated the possible role of selected negatively-charged amino acids of the sodium and chloride-coupled GABA transporter GAT-1 on sodium binding. These residues located adjacent to putative transmembrane domains and which are conserved throughout the large superfamily of neurotransmitter transporters were...

journal_title：FEBS letters

authors： Keshet GI,Bendahan A,Su H,Mager S,Lester HA,Kanner BI

更新日期：1995-08-28 00:00:00

abstract：:The inhibitor of gamma-glutamyl transpeptidase (gamma-GT) acivicin modulates cellular responses including growth, myeloid maturation and apoptosis. Whether these effects result from the inhibition of gamma-GT enzyme activity remains unclear. We compared the cellular effects of acivicin against a more potent and specif...

journal_title：FEBS letters

authors： Antczak C,Karp DR,London RE,Bauvois B

更新日期：2001-11-16 00:00:00

abstract：:We have used HPLC techniques to investigate the effects of gp120 upon inositol phosphate turnover in Jurkat E6-1 CD4+ T-cells, to pursue previous reports that this viral coat protein: (a) inhibits receptor-activated inositol phosphate release; (b) stimulates basal inositol phosphate release; (c) inhibits inositol poly...

journal_title：FEBS letters

authors： Sumner MT,Shears SB

更新日期：1997-08-11 00:00:00

abstract：:The white-rot fungus Phanerochaete chrysosporium has two intracellular beta-glucosidases (BGL1A and BGL1B) belonging to glycoside hydrolase (GH) family 1. BGL1B effectively hydrolyzes cellobiose and cellobionolactone, but BGL1A does not. We have determined the crystal structure of BGL1A in substrate-free and gluconola...

journal_title：FEBS letters

authors： Nijikken Y,Tsukada T,Igarashi K,Samejima M,Wakagi T,Shoun H,Fushinobu S

更新日期：2007-04-03 00:00:00

abstract：:Biochemical, immunohistochemical and molecular biological methods were used to detect fetal myosin heavy chain (MyHC) in the human masseter of elderly and young subjects. Samples from the elderly subjects contained larger amounts of fetal MyHC than those of young adults. Only a very small amount of embryonic MyHC coul...

journal_title：FEBS letters

authors： Monemi M,Eriksson PO,Dubail I,Butler-Browne GS,Thornell LE

更新日期：1996-05-13 00:00:00

abstract：:We have characterized somatostatinergic phenotype markers of the human neuroblastoma, LA-N-2. A single mRNA-transcript (approximately 850bp) and two cellular somatostatin immunoreactivity forms, a high molecular weight form (M(r) 15,000) and a fragment corresponding to somatostatin-28 was found, while the somatostatin...

journal_title：FEBS letters

authors： Nilsson L,Bergström L,Meyersson G,Påhlman S,Winblad B,Folkesson R

更新日期：1995-09-18 00:00:00

abstract：:Mitogen activated protein kinase in extracts of U-937 macrophage-like cells was stimulated by LDL and oxLDL. A maximum value (161% of the basal phosphotransferase activity) was obtained after 6 min exposure to oxidized LDL (27 microgram/ml) using APRTPGGRR peptide substrate. The activatory effect was more pronounced (...

journal_title：FEBS letters

authors： Deigner HP,Claus R

更新日期：1996-05-06 00:00:00

abstract：:Parkinson's disease is the second most common neurodegenerative disease, and results from loss of dopaminergic neurons in the substantia nigra. The aggregation and fibrillation of alpha-synuclein in the form of intracellular proteinaceous aggregates (Lewy bodies and Lewy neurites) have been implicated as a causative f...

journal_title：FEBS letters

authors： Uversky VN,Fink AL

更新日期：2002-07-03 00:00:00

abstract：:Uptake of cholesterol by isolated rat hepatocytes in a serum-free medium was remarkably enhanced by dispersion with several kinds of phosphatidylcholine. Of the various phosphatidylcholines tested, dilinoylphosphatidylcholine had the strongest accelerating effect, while dipalmitoylphosphatidylcholine was the weakest. ...

journal_title：FEBS letters

authors： Nagamura Y,Sasaki K,Ito M,Saito K,Ogitsu N,Ishiguro I

更新日期：1986-07-14 00:00:00

abstract：:Filamin plays an important role in actin cytoskeleton organization, membrane stabilization, and anchoring of transmembrane proteins. Using short interfering RNA (siRNA) to selectively target the filamin A gene and silence its expression, we studied the role of filamin A in G protein coupled receptor (GPCR) signaling. ...

journal_title：FEBS letters

authors： Huang C,Wu Z,Hujer KM,Miller RT

更新日期：2006-03-20 00:00:00

abstract：:We investigated the role of p53 in nuclear factor (NF)-kappaB dependent, platelet-activating factor (PAF)-induced vascular endothelial growth factor (VEGF) expression. Transfected NF-kappaB subunits in ECV304 cells increased the tumor necrosis factor-alpha promoter activity, which was completely inhibited by p53. Tran...

journal_title：FEBS letters

authors： Ko HM,Jung HH,Seo KH,Kang YR,Kim HA,Park SJ,Lee HK,Im SY

更新日期：2006-05-29 00:00:00

abstract：:Induction of differentiation in HL-60 and U-937 leukemic cell lines, resulted in 1.5-10-fold increase in 45Ca2+ uptake. The increased 45Ca2+ uptake in the differentiating cells was inhibited by verapamil, cromolyn and amiloride. Elevation in Ca2+ uptake in differentiating cells was also demonstrated using the fluoresc...

journal_title：FEBS letters

authors： Rephaeli A,Aviram A,Englender T,Shaklai M

更新日期：1988-08-29 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：:The receptor structure of Clostridium botulinum neurotoxin type A was analysed by TLC immunostaining. GQ1b was found to be the most potent receptor, and the neurotoxin also bound to GT1b and GD1a, but not to GM3, GM2, GM1, GD3, GD1b and GT1a. Optimum binding of neurotoxin to the ganglioside appeared in 0.01 M phosphat...

journal_title：FEBS letters

authors： Takamizawa K,Iwamori M,Kozaki S,Sakaguchi G,Tanaka R,Takayama H,Nagai Y

更新日期：1986-06-09 00:00:00

abstract：:Mitochondria in primary living hepatocytes were visualized in cells transfected with a chimeric plasmid encoding for the green fluorescent protein (GFP) of Aequorea victoria engineered to be specifically targeted to mitochondria, as described recently (Rizutto et al. (1995) Curr. Biol. 5, 635-642). The identification ...

journal_title：FEBS letters

authors： Venerando R,Miotto G,Pizzo P,Rizzuto R,Siliprandi N

更新日期：1996-03-18 00:00:00

abstract：:The active A1 peptide of cholera toxin was linked by a disulphide bond to the lectin of Wisteria floribunda. The resulting conjugate activated the adenylate cyclase of intact U937 or K562 cells at the same concentrations as native toxin did, but to a greater extent. Activation was inhibited by N-acetyl-D-galactosamine...

journal_title：FEBS letters

authors： van Heyningen S

更新日期：1983-11-28 00:00:00

abstract：:A sensitive and specific radioimmunoassay suitable for direct measurement of leukotriene C4 was developed. Acetylated leukotriene C4 was coupled to polyamino bovine serum albumin using 1-ethyl-3-(3-dimethylamino-propyl) carbodiimide hydrochloride as coupling agent. The conjugate in complete or incomplete Freund's adju...

journal_title：FEBS letters

authors： Lindgren JA,Hammarström S,Goetzl EJ

更新日期：1983-02-07 00:00:00

abstract：:We have studied the incorporation of [(14)C]serine and of [(3)H]sphingosine into sphingomyelin in the presence or absence of brefeldin A (BFA) in three different cell types. Administration of BFA (1 microgram/ml) to fibroblasts for 24 h increased the incorporation of label into sphingomyelin 1.5-3 fold compared with u...

journal_title：FEBS letters

authors： Sadeghlar F,Sandhoff K,van Echten-Deckert G

更新日期：2000-07-28 00:00:00

abstract：:The L1CAM antibody A10-A3 efficiently reduces tumor growth in a nude mouse model. Here, we describe the crystal structure of the Fab fragment of A10-A3 determined at 2.0 angstrom resolution. The A10-A3 antibody H3 loop reveals a characteristic arrangement of exposed aromatic residues that may play an important role in...

journal_title：FEBS letters

authors： Wei CH,Lee ES,Jeon JY,Heo YS,Kim SJ,Jeon YH,Kim KH,Hong HJ,Ryu SE

更新日期：2011-01-03 00:00:00

abstract：:Hterologous complementation of yeast mutants has enabled the isolation of genes encoding several families of amino acid transporters. Among them, NTR1 codes for a membrane protein with weak histidine transport activity. However, at the sequence level, NTR1 is related to rather non-specific oligopeptide transporters fr...

journal_title：FEBS letters

authors： Rentsch D,Laloi M,Rouhara I,Schmelzer E,Delrot S,Frommer WB

更新日期：1995-08-21 00:00:00