Raf-1 is not a major upstream regulator of MAP kinases in rat fibroblasts.

abstract：:The ABCG2 protein has a key role in the transport of a wide range of structurally dissimilar endo- and xenobiotics in the human body, especially in the tissue barriers and the metabolizing or secreting organs. The human ABCG2 gene harbors a high number of polymorphisms and mutations, which may significantly modulate i...

journal_title：FEBS letters

authors： Sarkadi B,Homolya L,Hegedűs T

更新日期：2020-10-04 00:00:00

abstract：:The omega3 fatty-acid desaturases: FAD7 and FAD8 (plastid) and FAD3 (reticular) are responsible for trienoic fatty-acid (TA) production in plants. The expression of these enzymes seemed to be regulated differently in response to light. Darkness leads to a decrease in total TA level. Under such conditions, FAD3 and FAD...

journal_title：FEBS letters

authors： Collados R,Andreu V,Picorel R,Alfonso M

更新日期：2006-09-04 00:00:00

abstract：:OmpC, a surface antigen of Salmonella typhi was crystallized after several attempts, using PEG 3350. Well shaped hexagonal crystals were grown from vapor diffusion method using octyl glucoside and C12E9 as detergents. Crystals are sensitive to X-ray and diffract weakly up to 7 A. Porin isoforms, due to the bound lipop...

journal_title：FEBS letters

authors： Arockiasamy A,Krishnaswamy S

更新日期：1999-06-25 00:00:00

abstract：:Type II restriction endonucleases (REases) exist in multiple oligomeric forms. The tetrameric REases have two DNA binding interfaces and must synapse two recognition sites to achieve cleavage. It was hypothesised that binding of two recognition sites by tetrameric enzymes contributes to their fidelity. Here, we experi...

journal_title：FEBS letters

authors： Zaremba M,Sasnauskas G,Siksnys V

更新日期：2012-09-21 00:00:00

abstract：:The tryptophan analog, 5-hydroxytryptophan (5HW), has a significant absorbance between 310-320 nm, which allows it to act as an exclusive fluorescence probe in protein mixtures containing a large number of tryptophan residues. Here for the first time a method is reported for the biosynthetic incorporation of 5HW into ...

journal_title：FEBS letters

authors： Hogue CW,Rasquinha I,Szabo AG,MacManus JP

更新日期：1992-10-05 00:00:00

abstract：:The failure of insulin-regulated recruitment of the GLUT4 glucose transporter in cardiac muscle of obese Zucker rats is associated with alterations of the subcellular distribution of the small-molecular-mass GTP-binding protein rab4A. Here, we show by subcellular fractionation and Western blotting a translocation of t...

journal_title：FEBS letters

authors： Uphues I,Chern Y,Eckel J

更新日期：1995-12-18 00:00:00

abstract：:We present evidence that the potent chloride channel blocker NPPB has protonophoric activity in the mitochondria and across the plasma membrane of phagocytic cells. The resting O2 consumption of murine peritoneal macrophages was stimulated up to 2.5-fold in the presence of NPPB, with a K0.5 of 15 microM. The stimulato...

journal_title：FEBS letters

authors： Lukacs GL,Nanda A,Rotstein OD,Grinstein S

更新日期：1991-08-19 00:00:00

abstract：:Transcriptional responses to growth in high environmental calcium concentrations were characterized and compared between wild-type and mutant Arabidopsis plants containing a knockout mutation in the gene encoding a cyclic nucleotide-gated channel (CNGC2). We show that the transcriptional profile of cngc2 plants grown ...

journal_title：FEBS letters

authors： Chan CW,Wohlbach DJ,Rodesch MJ,Sussman MR

更新日期：2008-03-19 00:00:00

abstract：:In plants exposed to high irradiances of visible light, the D1 protein in the reaction center of photosystem II is oxidatively damaged and rapidly degraded. Earlier work in our laboratory showed that the serine protease Deg2 performs the primary cleavage of photodamaged D1 protein in vitro. Here, we demonstrate that t...

journal_title：FEBS letters

authors： Huesgen PF,Schuhmann H,Adamska I

更新日期：2006-12-22 00:00:00

abstract：:Angiotensin II (Ang II), a potent hypertrophic factor for vascular smooth muscle cells (VSMC), induces activation of the ras proto-oncogene product (Ras) and mitogen-activated protein (MAP) kinases, and tyrosine phosphorylation of a focal adhesion-associated protein, paxillin. Forskolin, a direct activator of adenylat...

journal_title：FEBS letters

authors： Takahashi T,Kawahara Y,Okuda M,Yokoyama M

更新日期：1996-11-11 00:00:00

abstract：:Macrophages play vital roles in inflammatory responses, and their number at sites of inflammation is strictly regulated by cell death and division. Here, we demonstrate that production of nitric oxide (NO) is a major mechanism whereby ceramide-1-phosphate (C1P) blocks apoptosis in macrophages. However, NO failed to st...

journal_title：FEBS letters

authors： Gangoiti P,Granado MH,Arana L,Ouro A,Gómez-Muñoz A

更新日期：2008-06-25 00:00:00

abstract：:We have previously reported that synthetic dsRNA can activate p21 expression by targeting the p21 promoter, thereby suppressing the proliferation of human bladder cancer cells. As complementarity between dsRNA and its target sequences is necessary for RNA activation, miRNAs may also trigger p21 expression through the ...

journal_title：FEBS letters

authors： Wang C,Chen Z,Ge Q,Hu J,Li F,Hu J,Xu H,Ye Z,Li LC

更新日期：2014-12-20 00:00:00

abstract：:The solution structure of the catalytic domain of MMP-20, a member of the matrix metalloproteinases family not yet structurally characterized, complexed with N-Isobutyl-N-(4-methoxyphenylsulfonyl)glycyl hydroxamic acid (NNGH), is here reported and compared with other MMPs-NNGH adducts. The backbone dynamic has been ch...

journal_title：FEBS letters

authors： Arendt Y,Banci L,Bertini I,Cantini F,Cozzi R,Del Conte R,Gonnelli L

更新日期：2007-10-02 00:00:00

abstract：:The complete amino acid sequence of prostaglandin endoperoxide synthase from sheep vesicular gland has been deduced by cloning and sequence analysis of DNA complementary to its messenger RNA. The results were confirmed by digestion of the enzyme with carboxypeptidase Y and by automated Edman degradation of the intact ...

journal_title：FEBS letters

authors： Yokoyama C,Takai T,Tanabe T

更新日期：1988-04-25 00:00:00

abstract：:Apolipoprotein E (apoE) is predominantly synthesized by astrocytes in the brain. In this study, we investigated the role of apoE in astrocyte apoptosis. We demonstrated that apoE protects astrocytes from hypoxia-induced apoptosis in a dose-dependent manner. Glutamate release from astrocytic cultures is significantly l...

journal_title：FEBS letters

authors： Zhou S,Wu H,Zeng C,Xiong X,Tang S,Tang Z,Sun X

更新日期：2013-01-16 00:00:00

abstract：:The voltage-dependent calcium channel (VDCC) in skeletal muscle probably plays a key role in transducing membrane charge movement to the calcium release channel. We report here that the expression of VDCC alpha 1 and alpha 2 mRNAs is developmentally regulated in differentiating C2C12 myogenic cells. The alpha 1 mRNA i...

journal_title：FEBS letters

authors： Varadi G,Orlowski J,Schwartz A

更新日期：1989-07-03 00:00:00

abstract：:The STARD1 subfamily of 'START' lipid trafficking proteins can reduce macrophage lipid content and inflammatory status (STARD1; StAR), and traffic cholesterol from endosomes (STARD3/MLN64). During macrophage differentiation, STARD1 mRNA and protein increase with sterol content, while the reverse is true for STARD3. St...

journal_title：FEBS letters

authors： Borthwick F,Taylor JM,Bartholomew C,Graham A

更新日期：2009-04-02 00:00:00

abstract：:Homocysteine thiolactone is a product of an error-editing reaction, catalyzed by Escherichia coli and Saccharomyces cerevisiae methionyl-tRNA synthetases, which prevents incorporation of homocysteine into tRNA and protein both in vitro and in vivo. Here, homocysteine thiolactone is also shown to be synthesized by cult...

journal_title：FEBS letters

authors： Jakubowski H,Goldman E

更新日期：1993-02-15 00:00:00

abstract：:A functional NAD molecule was immobilized at the active site of Alcohol dehydrogenase within a proteic membrane. The presence and the functionality of the cofactor was checked by fluorescence analysis. The dehydrogenase NAD membrane does not require addition of soluble cofactor for its activity. The system represents ...

journal_title：FEBS letters

authors： Legoy MD,le Moullec JM,Thomas D

更新日期：1978-10-15 00:00:00

abstract：:As a result of Myc-dependent transcription of the LDH-A gene, Myc-transformed cells (Rat1-Myc) exhibit increased lactate production rates (LPR) even under aerobic conditions (the Warburg effect). Recently, the increased susceptibility to stress-induced apoptosis associated with Myc transfection has been linked to the ...

journal_title：FEBS letters

authors： Papas KK,Sun L,Roos ES,Gounarides JS,Shapiro M,Nalin CM

更新日期：1999-03-12 00:00:00

abstract：:The spatial relationship of polypeptides comprising the light-harvesting B800-850 complex of Chromatium minutissimum has been studied by means of chemical crosslinking of the isolated complex with cleavable, 1.2 nm-long dithiobis(succinimidyl propionate). The samples were analyzed by different types of electrophoresis...

journal_title：FEBS letters

authors： Moskalenko AA,Toropygina OA

更新日期：1993-03-29 00:00:00

abstract：:Calf thymus (ct) Hsc70 has been shown previously to reactivate heat-inactivated prokaryotic and eukaryotic enzymes, while DnaK was able to reactivate solely prokaryotic enzymes. Here, we report on isolation from calf thymus of a DnaJ homolog, ctHsc40, and on testing of its cooperative function in three different assay...

journal_title：FEBS letters

authors： Ziemienowicz A,Konieczny I,Hübscher U

更新日期：2001-10-19 00:00:00

abstract：:Temperature-jump measurements were carried out on myosin subfragment 1 (S1) labeled at Cys-707 with 5-(iodoacetamido)fluorescein (S1-AF). The relaxation was monitored by following the increase in the fluorescence intensity of the attached probe after a jump of 5.8 degrees C. A single relaxation process was observed ov...

journal_title：FEBS letters

authors： Lin SH,Cheung HC

更新日期：1992-06-15 00:00:00

abstract：:We screened active compounds from natural marine products able to increase PPARalpha/gamma transcriptional activity. Sargaquinoic acid (SQA) and sargahydroquinoic acid (SHQA) from Sargassum yezoense were identified as novel PPARalpha/gamma dual agonists. The binding affinity of SQA with PPARgamma was higher than that ...

journal_title：FEBS letters

authors： Kim SN,Choi HY,Lee W,Park GM,Shin WS,Kim YK

更新日期：2008-10-15 00:00:00

abstract：:In eukaryotes, members of the Ero1 family control oxidative protein folding in the endoplasmic reticulum (ER). Yeast Ero1p is tightly associated with the ER membrane, despite cleavage of the leader peptide, the only hydrophobic sequence that could mediate lipid insertion. In contrast, human Ero1-Lalpha and a yeast mut...

journal_title：FEBS letters

authors： Pagani M,Pilati S,Bertoli G,Valsasina B,Sitia R

更新日期：2001-11-09 00:00:00

abstract：:Saccharomyces cerevisiae mutant strain DTY26, lacking ACE1, the protein mediator for the induction of metallothionein gene expression, is unable to increase Cu,Zn superoxide dismutase mRNA in response to copper. In the wild-type strain DTY22 transcription of both Cu,Zn superoxide dismutase and metallothionein genes is...

journal_title：FEBS letters

authors： Carri MT,Galiazzo F,Ciriolo MR,Rotilio G

更新日期：1991-01-28 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：:(-)-Epigallocatechin-3-O-gallate (EGCG) exhibits anti-tumor activity mediated via the 67-kDa laminin receptor (67LR). In this study, we found that 67LR protein levels are reduced by exposure to low O(2) levels (5%), without affecting the expression of HIF-1α. We also found that EGCG-induced anti-cancer activity is abr...

journal_title：FEBS letters

authors： Tsukamoto S,Yamashita S,Kim YH,Kumazoe M,Huang Y,Yamada K,Tachibana H

更新日期：2012-09-21 00:00:00

abstract：:The interferon inducible transmembrane (IFITM) proteins mediate several cellular processes such as homotypic cell adhesion functions of interferons (IFNs) and cellular anti-proliferative activities. We show that the BAF complex-mediated induction of IFITM3 is dependent on binding of the transcriptional enhancer factor...

journal_title：FEBS letters

authors： Cuddapah S,Cui K,Zhao K

更新日期：2008-01-23 00:00:00

abstract：:Nuclear cap-binding protein (CBP) 80/20-dependent translation (CT) is one of the targets for miRNA-mediated gene silencing. Here, we provide evidence that human argonaute 2 (Ago2) competes with CBP80/20 for cap-association, inhibiting CT and thus nonsense-mediated mRNA decay (NMD), which is tightly coupled to CT. Teth...

journal_title：FEBS letters

authors： Choe J,Cho H,Chi SG,Kim YK

更新日期：2011-09-02 00:00:00