Rapidly maturing red fluorescent protein variants with strongly enhanced brightness in bacteria.

abstract：:D-aspartate and human chorionic gonadotropin act synergistically to increase testosterone production in purified rat Leydig cells, and D-aspartate stimulates testosterone synthesis even in the absence of human chorionic gonadotropin stimulation. In addition, D-aspartate enhances steady-state cellular mRNA and protein ...

journal_title：FEBS letters

authors： Nagata Y,Homma H,Matsumoto M,Imai K

更新日期：1999-07-09 00:00:00

abstract：:We have identified and analyzed a 27-nucleotide sequence (U5 repressive element, designated as U5RE) at the U5 region of the human T-cell leukemia virus type I (HTLV-I) long terminal repeat (LTR) which is required for HTLV-I basal transcriptional repression. The basal promoter strength of constructs that contained del...

journal_title：FEBS letters

authors： Okumura K,Takagi S,Sakaguchi G,Naito K,Minoura-Tada N,Kobayashi H,Mimori T,Hinuma Y,Igarashi H

更新日期：1994-12-12 00:00:00

abstract：:To clarify the effect of hepatocyte growth factor (HGF) on proliferation of hepatic oval cells, we transferred HGF gene into liver of the Solt-Farber rat model. Male Fisher 344 rats were infected with a recombinant adenovirus carrying the cDNA for HGF (pAxCAHGF) from tail vein. HGF mRNA showed its peak at 4 days, and ...

journal_title：FEBS letters

authors： Shiota G,Kunisada T,Oyama K,Udagawa A,Nomi T,Tanaka K,Tsutsumi A,Isono M,Nakamura T,Hamada H,Sakatani T,Sell S,Sato K,Ito H,Kawasaki H

更新日期：2000-03-31 00:00:00

abstract：:Vacuolar tandem-pore channels could not be analysed in Xenopus oocytes so far, due to misguided translocation. Owing to the conservation of their pore regions, we were able to prepare functional pore-chimeras between the plasma membrane localised TPK4 and vacuolar TPKs. Thereby, we found evidence that TPK2, TPK3 and T...

journal_title：FEBS letters

authors： Marcel D,Müller T,Hedrich R,Geiger D

更新日期：2010-06-03 00:00:00

abstract：:Pretreatment of tissues with potassium channel openers (KCO's) has been observed to be cytoprotective in a broad variety of insults. This phenomenon has been proposed to be intimately linked to activation of mitochondrial potassium channels which apparently modulate the mitochondrial production of reactive oxygen spec...

journal_title：FEBS letters

authors： Malinska D,Mirandola SR,Kunz WS

更新日期：2010-05-17 00:00:00

abstract：:A large protein complex (approx. 2000 kDa) was found in the cytosol of the hyperthermophilic archaebacterium Staphylothermus marinus. The purified protein was shown to be a homomultimer of 93 kDa subunits, the primary structure of which was determined by nucleotide sequence analysis. The protein belongs to the family ...

journal_title：FEBS letters

authors： Cicicopol C,Peters J,Kellermann J,Baumeister W

更新日期：1994-12-19 00:00:00

abstract：:In unicellular species codon usage is determined by mutational biases and natural selection. Among prokaryotes, the influence of these factors is different if the genome is skewed towards AT or GC, since in AT-rich organisms translational selection is absent. On the other hand, in AT-rich unicellular eukaryotes the tw...

journal_title：FEBS letters

authors： Naya H,Romero H,Carels N,Zavala A,Musto H

更新日期：2001-07-20 00:00:00

abstract：:Determination of the protonation state of enzymes is a challenging problem in computational biophysics largely due to the vast number of possible protonic configurations. The protonation state dynamics of respiratory complex I was investigated via Monte Carlo and asynchronous dynamics simulations and a novel eigenvect...

journal_title：FEBS letters

authors： Couch V,Stuchebrukhov A

更新日期：2012-03-09 00:00:00

abstract：:An E. coli overexpression system for the N-terminal domain of the 434 repressor with residues 1-63 (434 repressor(1-63)) was constructed and used to produce this polypeptide with uniform 15N-labeling, and with 13C-labeling of the methyl groups of valine and leucine. Using these protein preparations almost complete seq...

journal_title：FEBS letters

authors： Neri D,Wider G,Wüthrich K

更新日期：1992-06-01 00:00:00

abstract：:Copper(II) was substituted for manganese(III) in Bacillus stearothermophilus Mn-superoxide dismutase. The (EPR) spectrum of the Cu(II) is distinctly rhombic, overlapping that of Cu(II) replacing zinc in copper/zinc superoxide dismutase. The copper-cyanide complex of the bacterial enzyme gives an EPR spectrum nearly id...

journal_title：FEBS letters

authors： Bannister JV,Desideri A,Rotilio G

更新日期：1985-08-19 00:00:00

abstract：:The nucleotide sequence of cDNA encoding the human substance P precursor, beta-preprotachykinin (beta-PPT), has been determined. The source of mRNA was a human laryngeal carcinoid tumour that contained a high concentration of immunoreactive substance P. The human beta-PPT polypeptide is 129 amino acids long and contai...

journal_title：FEBS letters

authors： Harmar AJ,Armstrong A,Pascall JC,Chapman K,Rosie R,Curtis A,Going J,Edwards CR,Fink G

更新日期：1986-11-10 00:00:00

abstract：:The mucosal epithelium secretes a variety of antimicrobial peptides that act as part of the innate immune system to protect against invading microbes. Here, we describe the functional properties of human defensin (HD) 5, the major antimicrobial peptide produced by Paneth cells in the ileum, in relation to its structur...

journal_title：FEBS letters

authors： de Leeuw E,Burks SR,Li X,Kao JP,Lu W

更新日期：2007-02-06 00:00:00

abstract：:Tyrosine-rich acidic matrix protein (TRAMP; 22 kDa extracellular matrix protein; dermatopontin) is a protein that co-purifies with lysyl oxidase and with dermatan sulphate proteoglycans, with possible functions in cell-matrix interactions and matrix assembly. Using a rabbit polyclonal antiserum raised against porcine ...

journal_title：FEBS letters

authors： Forbes EG,Cronshaw AD,MacBeath JR,Hulmes DJ

更新日期：1994-09-12 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：:Rat liver fructose 1,6-bisphosphatase can be protected against partial inactivation by N-ethylmaleimide by low concentrations of fructose 2,6-bisphosphate or high concentrations of fructose 1,6-bisphosphate. The partially inactivated enzyme has a much reduced sensitivity to high substrate inhibition and has lost the s...

journal_title：FEBS letters

authors： Meek DW,Nimmo HG

更新日期：1983-08-22 00:00:00

abstract：:Three major UDP-glucuronyltransferase isoenzymes (50-54 kDa) have been identified by immunoblot analysis. Bilirubin UDP-glucuronyltransferase (54 kDa) was specially induced by treatment of the rats with clofibrate. This isoenzyme was not detectable in liver microsomal extracts from congenitally jaundiced Gunn rats and...

journal_title：FEBS letters

authors： Scragg I,Celier C,Burchell B

更新日期：1985-04-08 00:00:00

abstract：:The four-step caffeine biosynthetic pathway includes three methylation steps that utilise S-adenosyl-L-methionine (SAM) as the methyl donor. In the process SAM is converted to S-adenosyl-L-homocysteine (SAH) which in turn is hydrolysed to L-homocysteine and adenosine. Significant amounts of radioactivity from [methyl-...

journal_title：FEBS letters

authors： Koshiishi C,Kato A,Yama S,Crozier A,Ashihara H

更新日期：2001-06-15 00:00:00

abstract：:We have explored the mechanisms involved in the facilitation of glutamate release mediated by the activation of kainate receptors (KARs) in the cortex using isolated nerve terminals (synaptosomes). Kainate (KA) produced an increase on glutamate release at 100 μM. The effect of KA was antagonized by NBQX (with AMPA rec...

journal_title：FEBS letters

authors： Rodríguez-Moreno A,Sihra TS

更新日期：2013-03-18 00:00:00

abstract：:Several apolipoproteins including apoE and apoA-I are known to be associated with amyloid beta-peptide, a major component of senile plaques in Alzheimer's disease. In the present study the interaction between three human amphipathic apolipoproteins apoE3, apoA-I and apoA-II and immobilized amyloid beta-peptide (1-40) ...

journal_title：FEBS letters

authors： Shuvaev VV,Siest G

更新日期：1996-03-25 00:00:00

abstract：:Differentiation of glia (astrocytes and oligodendrocytes) in Drosophila requires the gene glial cells missing (gcm), which controls lineage determination. In the absence of gcm, neuroglia progenitors exclusively differentiate into neurons, instead of into both neurons and glia. In contrast, ectopic overexpression of g...

journal_title：FEBS letters

authors： Altshuller Y,Copeland NG,Gilbert DJ,Jenkins NA,Frohman MA

更新日期：1996-09-16 00:00:00

abstract：:Protective antigen (PA) is the central receptor binding component of anthrax toxin, which translocates catalytic components of the toxin into the cytosol of mammalian cells. Ever since the crystal structure of PA was solved, there have been speculations regarding the possible role of calcium ions present in domain I o...

journal_title：FEBS letters

authors： Gupta PK,Chandra H,Gaur R,Kurupati RK,Chowdhury S,Tandon V,Singh Y,Maithal K

更新日期：2003-11-20 00:00:00

abstract：:Affinity labeling studies have identified several conserved tyrosine residues in the alpha subunit of the nicotinic acetylcholine receptor (alpha Y93, alpha Y190, and alpha Y198) as being in or near the ligand binding site. Mutagenesis studies from several laboratories have shown that substitution of phenylalanine for...

journal_title：FEBS letters

authors： Aylwin ML,White MM

更新日期：1994-07-25 00:00:00

abstract：:Different bioinformatics methods illuminate different aspects of protein function, from specific catalytic activities to broad functional categories. Here, a triple-pronged approach to predict function for a domain of unknown function, DUF2086, is applied. Distant homology to characterised enzymes and conservation of ...

journal_title：FEBS letters

authors： Mello LV,Rigden DJ

更新日期：2012-11-02 00:00:00

abstract：:Ankyrin repeat domain 17 (Ankrd17) encodes an ubiquitously expressed protein with two clusters of ankyrin repeats. We have used gene targeting strategy to ablate the Ankrd17 gene in mouse. The Ankrd17-deficient mice died between embryonic day (E) 10.5 and E11.5 due to cardiovascular defects. Serious hemorrhages were d...

journal_title：FEBS letters

authors： Hou SC,Chan LW,Chou YC,Su CY,Chen X,Shih YL,Tsai PC,Shen CK,Yan YT

更新日期：2009-09-03 00:00:00

abstract：:Structural gene expression of human immunodeficiency virus type 1 (HIV-1) requires a viral regulatory protein, Rev transactivator. We investigated Rev-dependency of HIV-1 gene expression by various reporter systems. Expression of unspliced and single-spliced viral mRNAs was demonstrated to be differentially dependent ...

journal_title：FEBS letters

authors： Sakai H,Furuta RA,Tokunaga K,Kawamura M,Hatanaka M,Adachi A

更新日期：1995-05-29 00:00:00

abstract：:A monoclonal antibody, MANDYS141, binds to both dystrophin and actinin on Western blots (SDS-denatured), but only to actinin in frozen sections of human muscle (native conformation). It differs from a polyclonal cross-reacting antiserum in that it binds to several muscle isoforms of actinin (smooth, fast and slow) fro...

journal_title：FEBS letters

authors： Nguyen TM,Ellis JM,Ginjaar IB,van Paassen MM,van Ommen GJ,Moorman AF,Cartwright AJ,Morris GE

更新日期：1990-10-15 00:00:00

abstract：:A 3.3 kb cDNA encoding the complete amino acid sequence of a calcium/calmodulin regulated protein phosphatase has been isolated from a Drosophila eye disc cDNA library. The predicted protein of 560 amino acids (molecular mass 62 kDa) is 73-78% identical to human PP2B isoforms. The cDNA hybridised to the X-chromosome a...

journal_title：FEBS letters

authors： Brown L,Chen MX,Cohen PT

更新日期：1994-02-14 00:00:00

abstract：:Transglutaminase 2 (TG2) is a GTP-binding protein with transglutaminase activity. Despite advances in the characterization of TG2 functions and their impact on cellular processes, the role of TG2 in Human chronic myelogenous leukemia K562 cell line is still poorly understood. To understand the biological significance ...

journal_title：FEBS letters

authors： Kang SK,Lee JY,Chung TW,Kim CH

更新日期：2004-11-19 00:00:00

abstract：:A latent MAP kinase kinase kinase activity previously detected after chromatography of PC12 cell extracts on Mono Q [(1992) FEBS Lett. 314, 461-465] has been identified as B-Raf by immunoblotting and immunoprecipitation experiments and by its specific activation with B-Raf antibodies. B-Raf is phosphorylated after sti...

journal_title：FEBS letters

authors： Traverse S,Cohen P

更新日期：1994-08-15 00:00:00

abstract：:The control of physiological processes requires the regulation and coordination of many different signals and is determined in part by the activation and repression of expression of specific target genes. RIP140 is a ligand dependent coregulator of many nuclear receptors that influence such diverse processes as muscle...

journal_title：FEBS letters

authors： White R,Morganstein D,Christian M,Seth A,Herzog B,Parker MG

更新日期：2008-01-09 00:00:00