PP1/PP2A phosphatases inhibitors okadaic acid and calyculin A block ERK5 activation by growth factors and oxidative stress.

abstract：:Polyphosphates (polyP) are long chains of inorganic phosphates that can be attached to lysine residues of target proteins as a nonenzymatic post-translational modification. This modification, termed polyphosphorylation, may be particularly prevalent in bacterial and fungal species that synthesize large quantities of p...

journal_title：FEBS letters

authors： McCarthy L,Bentley-DeSousa A,Denoncourt A,Tseng YC,Gabriel M,Downey M

更新日期：2020-01-01 00:00:00

abstract：:The predominance of oxidative stress in many tumour cell environments provides a means to selectively target these cells via protein oxidation. The zinc fingers of transcription factors utilise cysteine thiols for structural zinc coordination. Redox control of DNA binding regulates transcription and therefore the over...

journal_title：FEBS letters

authors： Giles NM,Gutowski NJ,Giles GI,Jacob C

更新日期：2003-01-30 00:00:00

abstract：:Spectral variants of the green fluorescent protein (GFP) have been extensively used as reporters to image molecular interactions in living cells by fluorescence resonance energy transfer (FRET). However, those GFP variants which are the most efficient donor acceptor pairs for FRET measurements show a high degree of sp...

journal_title：FEBS letters

authors： Zimmermann T,Rietdorf J,Girod A,Georget V,Pepperkok R

更新日期：2002-11-06 00:00:00

abstract：:The ARG-11 gene in Saccharomyces cerevisiae encodes a protein with the characteristic features of a family of 35 related membrane proteins that are encoded in the fungal genome. Some of them are known to transport various substrates and products across the inner membranes of mitochondria, but the functions of 29 membe...

journal_title：FEBS letters

authors： Palmieri L,De Marco V,Iacobazzi V,Palmieri F,Runswick MJ,Walker JE

更新日期：1997-06-30 00:00:00

abstract：:The mongoose AChR alpha-subunit has been cloned and shown to be highly homologous to other AChR alpha-subunits, with only six differences in amino acid residues at positions that are conserved in animal species that bind alpha-bungarotoxin (alpha-BTX). Four of these six substitutions cluster in the ligand binding site...

journal_title：FEBS letters

authors： Asher O,Jensen BS,Lupu-Meiri M,Oron Y,Fuchs S

更新日期：1998-04-17 00:00:00

abstract：:Data obtained from peptide mapping of the active and inactive forms of human renin show that there are extensive regions of common sequence in the two forms of the enzyme, and are consistent with the hypothesis that inactive renin is a renin zymogen. ...

journal_title：FEBS letters

authors： McIntyre GD,Chaudhuri S,Coggins JR

更新日期：1984-10-01 00:00:00

abstract：:We found that, in the presence of chimeric oligonucleotides containing complementary deoxyribo- and 2'-O-methylnucleosides, a nonaribonucleotide, [5'-32P]pACUUACCUG, was cleaved specifically upon treatment with RNase H. When 3'm(UG)d(AATG)m(GAC)5' was used as a hybridization strand, pACUUACCUG was cleaved between C6 a...

journal_title：FEBS letters

authors： Inoue H,Hayase Y,Iwai S,Ohtsuka E

更新日期：1987-05-11 00:00:00

abstract：:The protein kinase C activator, phorbol-12-myristate-13-acetate (PMA), augments the cyclic AMP accumulation induced by forskolin in pheochromocytoma (PC 12) cells with an EC50 value of 14 nM, while having no effect on basal values. At a concentration of 100 nM PMA markedly augmented the magnitude of the forskolin resp...

journal_title：FEBS letters

authors： Hollingsworth EB,Ukena D,Daly JW

更新日期：1986-02-03 00:00:00

abstract：:To investigate interactions between the polychlorinated biphenyl-binding protein uteroglobin and phospholipids, we used a liposome-pelletting assay. PCB-BP/uteroglobin bound to liposomes made from negatively charged phospholipids (PtdSer and PtdIns) in the presence of 5 mM calcium. No binding to liposomes made from ph...

journal_title：FEBS letters

authors： Nord M,Gustafsson JA,Lund J

更新日期：1995-11-06 00:00:00

abstract：:We have found that SV40 infection of CV1 cells induces the synthesis of a 72 kDa protein that upon molecular cloning was shown to be the product of the hsc70 gene. The above gene product was found to be mainly virus inducible, in contrast to the hsp70 gene product which was mainly heat inducible. The two genes were fo...

journal_title：FEBS letters

authors： Sainis I,Angelidis C,Pagoulatos G,Lazaridis I

更新日期：1994-12-05 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：:Secretoneurin is a recently characterized neuropeptide present in the primary amino acid sequence of secretogranin II. We investigated the proteolytic processing of secretogranin II by prohormone convertases in vivo in a cellular system using the vaccinia virus system. Both PC1 and PC2 can cleave the secretogranin II ...

journal_title：FEBS letters

authors： Hoflehner J,Eder U,Laslop A,Seidah NG,Fischer-Colbrie R,Winkler H

更新日期：1995-03-06 00:00:00

abstract：:Escherichia coli 50 S ribosomal subunits were reconstituted with and without protein L16 present. The latter particles, although active in puromycin reaction, were unable to use CACCA-Phe as an acceptor substrate. We also found that L16 interacts directly with this oligonucleotide and, in the complex with tRNA, protec...

journal_title：FEBS letters

authors： Maimets T,Remme J,Villems R

更新日期：1984-01-23 00:00:00

abstract：:Bone morphogenetic proteins (BMPs) are members of the transforming growth factor-β (TGF-β) family that signal via type I and type II serine/threonine kinase receptors and intracellular Smad transcription factors. BMPs are multifunctional regulators of development and tissue homeostasis and they were initially characte...

journal_title：FEBS letters

authors： Cai J,Pardali E,Sánchez-Duffhues G,ten Dijke P

更新日期：2012-07-04 00:00:00

abstract：:Though phospholipase C PLCgamma2 is known to play an important role in platelet activation by collagen and fibrinogen, its importance in GPIb-mediated platelet activation is less well understood. To better understand the role of PLCgamma2 in GPIb-mediated adhesion and thrombus formation, we examined the ability of wil...

journal_title：FEBS letters

authors： Rathore V,Wang D,Newman DK,Newman PJ

更新日期：2004-08-27 00:00:00

abstract：:Peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1alpha), a highly inducible transcriptional coactivator regulating energy homeostasis, is down-regulated in hepatoma tissues. To dissect its role in hepato-tumorigenesis, Ingenuity Pathway Analysis was applied to construct pathways affected by P...

journal_title：FEBS letters

authors： Lee HJ,Su Y,Lui WY,Chau GY,Yin PH,Lee HC,Chi CW

更新日期：2008-03-05 00:00:00

abstract：:The fat mouse strain exhibits a late-onset obesity syndrome associated with a mutation in the gene encoding carboxypeptidase E (CPE). Since CPE plays a central role in the biosynthesis of a number of regulatory peptides, including gastrin, we examined the biogenesis and processing of progastrin in fat/fat mice by meas...

journal_title：FEBS letters

authors： Lacourse KA,Friis-Hansen L,Rehfeld JF,Samuelson LC

更新日期：1997-10-13 00:00:00

abstract：:Lipid metabolism is extensively studied in Saccharomyces cerevisiae. Here, we report that revertant of glycogen synthase kinase mutation-1 (Rog1p) possesses monoacylglycerol (MAG) lipase activity in S. cerevisiae. The lipase activity of Rog1p was confirmed in two ways: through analysis of a strain with a double deleti...

journal_title：FEBS letters

authors： Vishnu Varthini L,Selvaraju K,Srinivasan M,Nachiappan V

更新日期：2015-01-02 00:00:00

abstract：:Phosphorylation of fibronectin was studied in quiescent vs growing cells from several species. Fibronectin secreted by actively growing cells exhibits a significantly higher level of phosphorylation than does the fibronectin secreted by quiescent cells of the same species. ...

journal_title：FEBS letters

authors： Ali IU

更新日期：1983-01-10 00:00:00

abstract：:In this work we have investigated the role of specific peptide sequences for glucose-inactivation of the yeast isocitrate lyase. Thus, different fragments of the ICL1 coding region were fused to the lacZ gene of E. coli to provide a reporter construction. Determinations of beta-galactosidase activities indicated that ...

journal_title：FEBS letters

authors： Ordiz I,Herrero P,Rodicio R,Moreno F

更新日期：1995-07-03 00:00:00

abstract：:The substrate specificity of purified PKC-alpha, -beta and -gamma has been investigated. A series of synthetic peptides based upon the sequence surrounding serine-7 in glycogen synthase were generated and used to determine the basic residue requirements of these PKC isotypes. While PKC-alpha and -beta are indistinguis...

journal_title：FEBS letters

authors： Marais RM,Nguyen O,Woodgett JR,Parker PJ

更新日期：1990-12-17 00:00:00

abstract：:Stimulation of human platelets increases cytoplasmic pH (pHi) via activation of Na+/H+ exchange. We have determined the effect of inhibiting Na+/H+ exchange on (i) thrombin-induced Ca2+ mobilization and (ii) turnover of 32P-labelled phospholipids. Blocking Na+/H+ exchange by removal of extracellular Na+ or by ethyliso...

journal_title：FEBS letters

authors： Siffert W,Siffert G,Scheid P,Riemens T,Gorter G,Akkerman JW

更新日期：1987-02-09 00:00:00

abstract：:The importance of HNF1 binding proteins for intestinal aminopeptidase N expression was investigated using the Caco-2 cell-line. Aminopeptidase N promoter activity in Caco-2 cells depends on the HNF1 element (positions -85 to -58) and co-transfection with an HNF1 alpha expression vector demonstrates a direct activation...

journal_title：FEBS letters

authors： Olsen J,Laustsen L,Troelsen J

更新日期：1994-04-11 00:00:00

abstract：:The p53 tumor suppressor coordinates a multitude of cellular and organismal processes and exerts its activities mainly by activation of gene transcription. Here we describe the transcriptional activation of ectodysplasin A2 receptor (EDA2R) by p53 in a variety of cell types and tissues. We demonstrate that treatment o...

journal_title：FEBS letters

authors： Brosh R,Sarig R,Natan EB,Molchadsky A,Madar S,Bornstein C,Buganim Y,Shapira T,Goldfinger N,Paus R,Rotter V

更新日期：2010-06-03 00:00:00

abstract：:A pumpkin 2S albumin with ribonuclease (RNase) activity was purified from pumpkin seeds (Cucurbita sp.) by liquid chromatographic techniques. It manifested potent RNase activity toward baker's yeast RNA and calf liver RNA, and some polyhomoribonucleotides, including poly(A), poly(U) and poly(C) but not poly(G). Moreov...

journal_title：FEBS letters

authors： Fang EF,Wong JH,Lin P,Ng TB

更新日期：2010-09-24 00:00:00

abstract：:A number of cDNA clones in summary encoding 700 amino acid residues from the N-end of rat liver elongation factor 2 (EF-2) and including 49 nucleotides of the 5'-untranslated mRNA region have been obtained. EF-2 cDNA clones were isolated from gradually constructed small (1000-5000 clones) specific cDNA libraries using...

journal_title：FEBS letters

authors： Oleinikov AV,Jokhadze GG,Alakhov YuB

更新日期：1989-05-08 00:00:00

abstract：:Pasteurella multocida toxin is a potent mitogen for cultured Swiss 3T3 cells where it causes an accumulation of inositol phosphates and activation of protein kinase C. The gene sequence described here coded for a 146 kDa protein. The ORF was preceded by a ribosome binding site and followed by a stem loop. There was no...

journal_title：FEBS letters

authors： Lax AJ,Chanter N,Pullinger GD,Higgins T,Staddon JM,Rozengurt E

更新日期：1990-12-17 00:00:00

abstract：:The reduction of methyl-coenzyme M (CH3SCoM) to methane in methanogenic bacteria is dependent on component B (N-7-mercaptoheptanoyl-O-phospho-L-threonine, HSHTP). We report here that S-methyl-component B (N-7-(methylthio)heptanoyl-O-phospho-L-threonine, CH3SHTP) can substitute for neither CH3SCoM nor HSHTP in the meth...

journal_title：FEBS letters

authors： Ellermann J,Kobelt A,Pfaltz A,Thauer RK

更新日期：1987-08-17 00:00:00

abstract：:The NAD-dependent glycerol-3-phosphate dehydrogenase (glycerol-3-phosphate:NAD+ oxidoreductase; EC 1.1.1.8; G3P DHG) was purified 178-fold to homogeneity from Saccharomyces cerevisiae strain H44-3D by affinity- and ion-exchange chromatography. SDS-PAGE indicated that the enzyme had a molecular mass of approximately 42...

journal_title：FEBS letters

authors： Albertyn J,van Tonder A,Prior BA

更新日期：1992-08-17 00:00:00

abstract：:Conformational changes in the extradiscal regions of rhodopsin induced by illumination were investigated by modifying the visual pigment by mild treatment with cyanogen bromide prior to and after light exposure. Light induced an increased yield of cleavage of the Met bond 253-254 and a new cleavage at the Met bond 155...

journal_title：FEBS letters

authors： Pellicone C,Nullans G,Virmaux N

更新日期：1985-02-11 00:00:00