Effect of a negative regulatory element (NRE) on the human CYP1A1 gene expression in breast carcinoma MCF-7 and hepatoma HepG2 cells.

abstract：:The Escherichia coli signal transduction protein PII, product of the glnB gene, was overproduced and purified. The predicted molecular weight of the protein based on the correct nucleotide sequence is 12,427 and is very close to the value 12,435 obtained by matrix-assisted laser desorption mass spectrometry. Hexagonal...

journal_title：FEBS letters

authors： Vasudevan SG,Gedye C,Dixon NE,Cheah E,Carr PD,Suffolk PM,Jeffrey PD,Ollis DL

更新日期：1994-01-17 00:00:00

abstract：:To better understand the mechanism of intracellular Ca2+ mobilization, mouse oocytes were micro-injected with 'caged'-inositol-1,4,5 triphosphate caged-InsP3) together with the Ca2+ indicator Fluo-3 to directly induce and monitor Ca2+ redistribution. Photo-released InsP3 elicits [Ca2+]i changes exhibiting several kine...

journal_title：FEBS letters

authors： Peres A

更新日期：1990-11-26 00:00:00

abstract：:cDNA clones encoding the 45 kDa protein were isolated from a rat olfactory epithelium cDNA library and their inserts were sequenced. The reconstructed protein sequence comprises 400 amino acids with a calculated molecular mass of 46,026 Da. A homology was revealed between the amino acid sequence of the 45 kDa protein ...

journal_title：FEBS letters

authors： Merkulova MI,Andreeva SG,Shuvaeva TM,Novoselov SV,Peshenko IV,Bystrova MF,Novoselov VI,Fesenko EE,Lipkin VM

更新日期：1999-04-30 00:00:00

abstract：:ZAP-70 is a protein tyrosine kinase (PTK) that plays a critical role in T cell activation. To study the role of ZAP-70 catalytic activity in this process, a substrate capable of distinguishing between the activities of ZAP-70 and other PTKs would be useful, especially since it has recently been shown that ZAP-70 inter...

journal_title：FEBS letters

authors： Watts JD,Brabb T,Bures EJ,Wange RL,Samelson LE,Aebersold R

更新日期：1996-12-02 00:00:00

abstract：:The cellulases cellobiohydrolase 1 (CBH 1) and endoglucanase 1 (EG 1) from the fungus Trichoderma reesei are closely related with 40% sequence identity and very similar in structure. In CBH 1 the active site is enclosed by long loops and some antiparallel beta-strands forming a 40 A long tunnel, whereas in EG 1 part o...

journal_title：FEBS letters

authors： Henriksson H,Ståhlberg J,Isaksson R,Pettersson G

更新日期：1996-07-29 00:00:00

abstract：:Activation of protein kinase C (PKC) in Rat-1 fibroblasts leads to rapid phosphorylation of an 80-kDa protein, a major substrate of PKC. Digitonin-permeabilized cells perfectly supported this early response. Introduction of a PKC pseudosubstrate peptide inhibited 80 kDa phosphorylation with an IC50 of 1 microM, while ...

journal_title：FEBS letters

authors： Eichholtz T,Alblas J,van Overveld M,Moolenaar W,Ploegh H

更新日期：1990-02-12 00:00:00

abstract：:Platinum electrodes can be coated with cytochrome b5-phospholipid monolayers by the Langmuir-Blodgett technique. Cyclic voltammetry of a series of dyes shows that the coated electrodes become selective for certain electroactive species. The electron transfer reactions of negatively charged species are inhibited at the...

journal_title：FEBS letters

authors： Zaba BN,Wilkinson MC,Taylor DM,Lewis TJ,Laidman DL

更新日期：1987-03-09 00:00:00

abstract：:Oligomeric structures of the four LOV domains in Arabidopsis phototropin1 (phot1) and 2 (phot2) were studied using crosslinking. Both LOV1 domains of phot1 and phot2 form a dimer independently on the light conditions, suggesting that the LOV1 domain can be a stable dimerization site of phot in vivo. In contrast, phot1...

journal_title：FEBS letters

authors： Katsura H,Zikihara K,Okajima K,Yoshihara S,Tokutomi S

更新日期：2009-02-04 00:00:00

abstract：:Sequence comparisons among methionyl-tRNA synthetases from different organisms reveal only one block of homology beyond the last beta strand of the mononucleotide fold. We have introduced a series of semi-conservative amino acid replacements in the conserved motif of yeast methionyl-tRNA synthetase. The results indica...

journal_title：FEBS letters

authors： Despons L,Walter P,Senger B,Ebel JP,Fasiolo F

更新日期：1991-09-09 00:00:00

abstract：:It has been suggested that the C-terminal domain of Bcl-2 family members may contain a signal anchor sequence that targets these proteins to the mitochondrial outer membrane. We have investigated the consequence of deleting this domain upon cytochrome c release in yeast strains that coexpress truncated forms of Bax (i...

journal_title：FEBS letters

authors： Priault M,Camougrand N,Chaudhuri B,Manon S

更新日期：1999-01-25 00:00:00

abstract：:Aspergillus nidulans catalase B (CatB) was purified to homogeneity and characterized as a hydroperoxidase which resembles typical catalases in some physicochemical characteristics: (1) it has an apparent molecular weight of 360000 and is composed of four glycosylated subunits, (2) it has hydrophobic properties as reve...

journal_title：FEBS letters

authors： Calera JA,Sánchez-Weatherby J,López-Medrano R,Leal F

更新日期：2000-06-16 00:00:00

abstract：:Two clones were isolated by screening a shrimp hepatopancreas cDNA library with a DNA fragment obtained by PCR amplification using two oligonucleotides based on the partial protein sequence of Penaeus vanameii chymotrypsin purified earlier. One of these clones, PVC 7 contains a complete cDNA coding for a serine protea...

journal_title：FEBS letters

authors： Sellos D,Van Wormhoudt A

更新日期：1992-09-14 00:00:00

abstract：:Previous data have suggested an involvement of MDR/PGP-like ABC transporters in transport of the plant hormone auxin and, recently, AtPGP1 has been demonstrated to catalyze the primary active export of auxin. Here we show that related isoform AtPGP4 is expressed predominantly during early root development. AtPGP4 loss...

journal_title：FEBS letters

authors： Santelia D,Vincenzetti V,Azzarello E,Bovet L,Fukao Y,Düchtig P,Mancuso S,Martinoia E,Geisler M

更新日期：2005-10-10 00:00:00

abstract：:We have investigated the activity of STAT family members throughout a mammary developmental cycle. Transcripts for Stat 5 were upregulated during pregnancy whilst STAT1 and STAT3 mRNAs were expressed at constant levels. DNA binding complexes containing both STAT5a and 5b showed differing affinities for two naturally o...

journal_title：FEBS letters

authors： Philp JA,Burdon TG,Watson CJ

更新日期：1996-10-28 00:00:00

abstract：:Vesicular stomatitis virus (VSV) is a prototypic virus commonly used in studies of endocytosis and membrane trafficking. One proposed mechanism for VSV entry involves initial fusion with internal vesicles of multivesicular endosomes followed by back-fusion of these vesicles into the cytoplasm. One feature of endosomal...

journal_title：FEBS letters

authors： Roth SL,Whittaker GR

更新日期：2011-03-23 00:00:00

abstract：:The aim of this work was to provide an overview of the genetics of human ageing to gain novel insights about the mechanisms involved. By incorporating findings from model organisms to humans, such as mutations that either delay or accelerate ageing in mice, we constructed the gene networks previously related to ageing...

journal_title：FEBS letters

authors： de Magalhães JP,Toussaint O

更新日期：2004-07-30 00:00:00

abstract：:Male germ cells specifically express paralogues of components of the general transcription apparatus including ALF a paralogue of TFIIAalpha/beta. We show that endogenous ALF is proteolytically cleaved to give alpha- and beta-subunits and we map the proteolytic cleavage site by mass spectrometry. Immunoprecipitations ...

journal_title：FEBS letters

authors： Catena R,Argentini M,Martianov I,Parello C,Brancorsini S,Parvinen M,Sassone-Corsi P,Davidson I

更新日期：2005-06-20 00:00:00

abstract：:The interactions of DNA duplexes with 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1), a potent mutacarcinogen isolated from tryptophan pyrolysate, have been studied using CD spectroscopy. The results are that (a) the spectral change of B-form DNA caused by the interaction with Trp-P-1 is biphasic, i.e. the enla...

journal_title：FEBS letters

authors： Inohara T,Tarui M,Doi M,Inoue M,Ishida T

更新日期：1993-06-21 00:00:00

abstract：:Cytochrome bd is one of the two terminal ubiquinol oxidases in the respiratory chain of Escherichia coli catalyzing reduction of O2 to H2O. The enzyme is expressed under low oxygen tension; due to high affinity for O2 it is isolated mainly as a stable oxygenated complex. Direct measurement of O2 binding to heme d in t...

journal_title：FEBS letters

authors： Belevich I,Borisov VB,Konstantinov AA,Verkhovsky MI

更新日期：2005-08-29 00:00:00

abstract：:Mammalian voltage-activated Shaker K+ channels associate with at least three cytoplasmic proteins: Kv beta 1, Kv beta 2 and Kv beta 3. These beta subunits contain variable N-termini, which can modulate the inactivation of Shaker alpha subunits, but are homologous throughout an aldo-keto reductase core. Human and ferre...

journal_title：FEBS letters

authors： McCormack K,McCormack T,Tanouye M,Rudy B,Stühmer W

更新日期：1995-08-14 00:00:00

abstract：:Recent studies indicate that junctophilin (JP) subtypes contribute to the formation of the junctional membrane complexes between the plasma membrane and the endoplasmic/sarcoplasmic reticulum (ER/SR) in excitable cells. Cardiac muscle contains the diad, in which the transverse (T) tubule of the invaginated cell membra...

journal_title：FEBS letters

authors： Komazaki S,Nishi M,Takeshima H

更新日期：2003-05-08 00:00:00

abstract：:The effect of persistent measles virus infection on c-fos protooncogene and protein kinase C (PKC-I) gene expression in a murine neuroblastoma cell line was studied. Overexpression of c-fos protooncogene by infected NS20Y/MS cells was detected when compared with uninfected NS20Y cells. The level of PKC-I-specific mRNA...

journal_title：FEBS letters

authors： Wolfson M,Katorza A,Segal S,Rager-Zisman B

更新日期：1989-07-03 00:00:00

abstract：:10Sa RNA is a bacterial small stable RNA, in which the 5'- and 3'-end sequences are folded into a tRNA-like structure. The RNA accepts alanine in vitro, and interacts with 70S ribosomes in the cells. In this study, we examined the ribosome-binding properties of Escherichia coli 10Sa RNA in vivo, and found that the ami...

journal_title：FEBS letters

authors： Tadaki T,Fukushima M,Ushida C,Himeno H,Muto A

更新日期：1996-12-16 00:00:00

abstract：:It had been shown previously by heterologous expression in Schizosaccharomyces pombe, that the two monosaccharide/H+ symporters HUP1 and HUP2 of Chlorella kessleri differ significantly concerning their substrate specificity: HUP1 transports predominantly D-glucose while HUP2 prefers D-galactose. Several chimeric trans...

journal_title：FEBS letters

authors： Will A,Tanner W

更新日期：1996-02-26 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：:We have examined the activity of protein disulfide isomerase (PDI) and glutaredoxin (Grx) 1, 2 and 3 from Escherichia coli to catalyze the cleavage of glutathionylated ribonuclease A (RNase-SG) by 1 mM GSH to yield reduced RNase. Apparent Km values for RNase-SG were similar, 2-10 microM, for Grx 1, 3 and PDI but Grx I...

journal_title：FEBS letters

authors： Lundström-Ljung J,Vlamis-Gardikas A,Aslund F,Holmgren A

更新日期：1999-01-25 00:00:00

abstract：:In cardiac cells the effects of n-3 PUFAs on the whole genome are still unknown despite their recognized cardioprotective effects and ability to modulate gene expression. We have evaluated the effects of n-3 PUFAs supplementation on the global gene expression profile in cultured neonatal rat cardiomyocytes, detecting ...

journal_title：FEBS letters

authors： Bordoni A,Astolfi A,Morandi L,Pession A,Danesi F,Di Nunzio M,Franzoni M,Biagi P,Pession A

更新日期：2007-03-06 00:00:00

abstract：:The aim of the present study is to determine the role of intracellular Ca(2+) in VEGF signaling. We demonstrate that reduction in Ca(2+) by chelating compound BAPTA-AM or by IP(3)-endoplasmic reticulum blocker 2-APB selectively inhibited VEGF-induced activation of c-Src-PI3K-Akt but not ERK1/2 in human coronary artery...

journal_title：FEBS letters

authors： Lee M,Spokes KC,Aird WC,Abid MR

更新日期：2010-07-16 00:00:00

abstract：:Under destabilising conditions both heat and cold denaturation of yeast phosphoglycerate kinase (PGK) can be observed. According to previous interpretation of experimental data and theoretical calculations, the C-terminal domain should be more stable than the N-terminal domain at all temperatures. We report on thermal...

journal_title：FEBS letters

authors： Gast K,Damaschun G,Desmadril M,Minard P,Müller-Frohne M,Pfeil W,Zirwer D

更新日期：1995-01-30 00:00:00

abstract：:Mitochondria process local and global Ca(2+) signals. Thereby the spatiotemporal patterns of mitochondrial Ca(2+) signals determine whether the metabolism of these organelles is adjusted or cell death is executed. Mitochondrial Ca(2+) channels of the inner mitochondrial membrane (IMM) actually implement mitochondrial ...

journal_title：FEBS letters

authors： Malli R,Graier WF

更新日期：2010-05-17 00:00:00