Abstract:
:We have previously shown that topoisomerase I (topo I) antagonist inhibited retrovirus replication. Since tyrphostins, synthetic compounds and protein tyrosine kinases (PTKs) blockers, inhibited topo I activity (manuscript in preparation) we examined their ability to inhibit Moloney murine leukemia virus (Mo-MuLV) replication. We found that non-cytotoxic doses of tyrphostin derivatives (AG-555, AG-18) blocked or substantially reduced Mo-MuLV replication in acute or chronically infected NIH/3T3 cells. Our experiments suggest that the antiviral effect of these tyrphostin derivatives was not the result of antiproliferative activity. However, the tyrphostin derivatives used in our present investigation differ in their ability to inhibit Mo-MuLV replication. Furthermore, as expected from stereospecific competitive inhibitors, the antiviral effect is not a general characteristic of all tyrphostin derivatives, since AG-213 does not affect Mo-MuLV replication. Our results indicate that these tyrphostin derivatives may represent a novel class of antiretroviral drugs.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Esther A,Iftach S,Esther Pdoi
10.1016/0014-5793(94)80248-3subject
Has Abstractpub_date
1994-03-14 00:00:00pages
99-103issue
1eissn
0014-5793issn
1873-3468pii
0014-5793(94)80248-3journal_volume
341pub_type
杂志文章相关文献
FEBS LETTERS文献大全abstract::Insertion and deletion analyses of a protein have been less common than point mutation analyses, partly due to the lack in effective methods. This is the case with the green fluorescent protein (GFP), which is so widely applied in molecular biology and other fields. In this paper we first introduce a systematic approa...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(03)01308-5
更新日期:2003-12-18 00:00:00
abstract::We have identified a novel protein on the outer membrane of Arabidopsis thaliana mitochondria. This protein displays 67% sequence identity with the 64 kDa translocase of the outer envelope membrane of chloroplasts (Toc). A mitochondrial localisation for this protein was determined by (i). its presence in the proteome ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(03)01457-1
更新日期:2004-01-16 00:00:00
abstract::Advanced glycation end products (AGE) are known to serve as ligands for the scavenger receptors such as SR-A, CD36 and SR-BI. In the current study, we examined whether AGE is recognized by lectin-like oxidized low density lipoprotein receptor-1 (LOX-1). Cellular binding experiments revealed that AGE-bovine serum album...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(01)03325-7
更新日期:2002-01-30 00:00:00
abstract::Posttranslational modifications of circadian oscillator components are crucial for the generation of circadian rhythms. Among those phosphorylation plays key roles ranging from regulating degradation, complex formation, subcellular localization and activity. Although most of the known clock proteins are phosphoprotein...
journal_title:FEBS letters
pub_type: 杂志文章,评审
doi:10.1016/j.febslet.2011.02.038
更新日期:2011-05-20 00:00:00
abstract::We investigated the expression of formyl peptide receptor (FPR) and its functional role in human bone marrow-derived mesenchymal stem cells (MSCs). We analyzed the expression of FPR by using ligand-binding assay with radio-labeled N-formyl-met-leu-phe (fMLF), and found that MSCs express FPR. FMLF stimulated intracellu...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2007.03.078
更新日期:2007-05-01 00:00:00
abstract::The RNA helicase Rok1 plays a role in rRNA processing and in control of cell cycle progression in Saccharomyces cerevisiae. We identified two upstream open reading frames (uORFs) within the ROK1 5' untranslated region, which inhibited Rok1 translation. Mutating uATG to uAAG or generation of a premature stop codon in t...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2010.10.019
更新日期:2010-11-19 00:00:00
abstract::Unstimulated human fibrosarcoma cells (HT1080) constitutively secrete matrix metalloproteinase 2 (MMP 2) as a proenzyme requiring proteolytic cleavage by membrane type-1 MMP (MT1 MMP) for activation. Physiological and pharmacological stimuli induce clustering of MT1 MMP/tissue inhibitor of MMP 2 "receptors", promoting...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2004.04.040
更新日期:2004-05-21 00:00:00
abstract::We tested the truncated 7-37 glucagon-like peptide 1 (TGLP-1), a naturally occurring porcine intestinal peptide, and other members of the glucagon family, including pancreatic glucagon (G-29), GLP-1 and GLP-2 for their ability to activate the cAMP generating system in rat gastric glands and HGT-1 human gastric cancer ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(88)80297-7
更新日期:1988-08-15 00:00:00
abstract::Mitochondrial translocation of ceramides triggers Bax-dependent apoptosis. To elucidate how ceramides activate Bax and commit cells to death, we developed a switchable version of the ceramide transfer protein CERT, sCERT. Upon its drug-induced recruitment to mitochondria, sCERT retains the ability to bind VAP proteins...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1002/1873-3468.13956
更新日期:2020-11-01 00:00:00
abstract::We previously reported that IκBL prevents experimental autoimmune arthritis. The molecular mechanism, however, still remains unclear. In contrast to four splicing-isoforms of IκBL in human, two isoforms were identified in mouse. The major isoform IκBL-α(S) suppressed LPS-induced NF-κB activation and transcription of T...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2011.10.024
更新日期:2011-11-16 00:00:00
abstract::Here we make a brief survey of the present state of antibiotic research and use. We also describe a novel antibiotic that contains a basic peptide covalently bound to a morpholino oligonucleotide. ...
journal_title:FEBS letters
pub_type: 杂志文章,评审
doi:10.1016/j.febslet.2013.10.048
更新日期:2014-01-03 00:00:00
abstract::Friedreich ataxia is a recessively inherited neurodegenerative disease caused by deficiency of a highly conserved mitochondrial protein, frataxin. Frataxin deficiency results in mitochondrial iron accumulation and oxidative stress. Frataxin shows homology with the CyaY proteins of gamma-purple bacteria, whose function...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(99)00896-0
更新日期:1999-07-30 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
pub_type: 杂志文章
doi:10.1016/0014-5793(87)80846-3
更新日期:1987-08-17 00:00:00
abstract::125I-labelled angiotensin II (A II) specifically binds to solubilized receptors extracted from rat isolated glomeruli using CHAPS (3-[3-( cholamidopropyl ) dimethylammonio ]-1-propanesulfonate). The yield of solubilization of the binding sites was 3.3%. Equilibrium was reached after 15-20 min and specific binding repr...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(84)81321-6
更新日期:1984-05-21 00:00:00
abstract::In order to study the transactivational property of the X gene in the methylotropic yeast Pichia pastoris, a Rous sarcoma virus-chloramphenicol acetyltransferase (RSV-CAT) cassette was co-transformed and integrated into the host yeast strain as a reporter which showed an overwhelming CAT activity. Immunoprecipitation ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(99)00930-8
更新日期:1999-07-30 00:00:00
abstract::Here, we report the volume and enthalpy changes accompanying CO photodissociation from the mixed valence form of cytochrome bo3 oxidase from Escherichia coli. The results of photoacoustic calorimetry indicate two kinetic phases with distinct volume and enthalpy changes accompanying CO photodissociation from heme o3 an...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2005.04.055
更新日期:2005-06-06 00:00:00
abstract::The mechanisms that underlie axon formation are still poorly understood. GSK3 has been recently implicated in establishing the axon and in its elongation. We have used four different GSK3 inhibitors to determine the role of GSK3 activity in hippocampal neurons at different periods of time. Inhibition of GSK3 activity ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2007.03.018
更新日期:2007-04-17 00:00:00
abstract::It is shown that conformational changes of receptor proteins brought about by binding of a ligand induce changes in the lipid environment of the receptor that can be monitored by fluorescent lipid probes. On this basis a new approach to studies of ligand-receptor binding is proposed. Using the interaction of the ricin...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(86)80108-9
更新日期:1986-01-06 00:00:00
abstract::The 42 kDa precursor of surfactant protein B generates the 79 residue mature SP-B polypeptide, which belongs to the family of saposin-like proteins and has unique functional roles in pulmonary surfactant. From sequence comparisons it has been suggested that proSP-B, in addition to SP-B, contains two saposin-like domai...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(97)01582-2
更新日期:1998-02-13 00:00:00
abstract::In this work we report that the Saccharomyces cerevisiae RAD9, RAD24, RAD17, MEC1, MEC3 and RAD53 checkpoint genes are required for efficient non-homologous end joining (NHEJ). RAD9 and RAD24 function additionally in this process. Defective NHEJ in rad9Delta-rad24Delta, but not yku80Delta cells, is only partially resc...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(00)01180-7
更新日期:2000-02-11 00:00:00
abstract::Myeloma cells specifically localize in the bone marrow and rarely circulate in blood. To study whether this immobilization could be partially explained by the presence of constitutively activated integrins, particularly alpha4beta1, we used the activation reporter HUTS-21 anti-beta1 mAb. These analyses showed that bet...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(97)01407-5
更新日期:1997-12-01 00:00:00
abstract::A 1000-bp fragment of Enterococcus hirae genomic DNA was amplified by the polymerase chain reaction method, using the oligonucleotide primers designed from amino acid sequences of both amino-terminal and a tryptic fragment of the Na(+)-ATPase alpha-subunit in this organism. DNA sequencing of this product revealed that...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(91)80835-q
更新日期:1991-11-04 00:00:00
abstract::The changes in phosphoproteins purified with the affinity peptide p9CKShs1 were analyzed from extracts of regenerating rat livers in order to define some G1 and G1/S regulations characteristic of mature hepatocytes stimulated to proliferate. We observed a 47 kDa phosphoprotein that occurred first at the end of G1 befo...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/s0014-5793(99)00629-8
更新日期:1999-06-11 00:00:00
abstract::Mouse interferon (alpha + beta) given to mice by intraperitoneal injection suppressed both the accumulation of putrescine and stimulation of DNA synthesis in liver caused by partial hepatectomy. The suppression of DNA synthesis was completely reversed by exogenous putrescine. The same results were obtained when core 2...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(86)80866-3
更新日期:1986-09-01 00:00:00
abstract::Biological systems, from macromolecules to whole organisms, are robust if they continue to function, survive, or reproduce when faced with mutations, environmental change, and internal noise. I focus here on biological systems that are robust to mutations and ask whether such systems are more or less evolvable, in the...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2005.01.063
更新日期:2005-03-21 00:00:00
abstract::Recombinant expression of the large alternansucrase (2057 amino acids) was hindered in E. coli due to poor enzyme solubility and protein degradation. The effects of deletions of the alternansucrase C-terminal CW-like and APY repeated motifs on enzyme solubility and specificity were investigated. A truncated variant de...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/j.febslet.2006.01.001
更新日期:2006-02-06 00:00:00
abstract::Apart from the 8 kDa subunit, which is of chloroplast origin, most of the small polypeptides of the PS I reaction center from higher plants are encoded in nuclear genes. We describe here the first nucleotide sequence of a nuclear component of this photosystem, the precursor of the 20 kDa protein. The deduced sequence ...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(88)80752-x
更新日期:1988-05-23 00:00:00
abstract::Formylmethanofuran dehydrogenase, a key enzyme of methanogenesis, was purified 100-fold from methanol grown Methanosarcina barkeri to apparent homogeneity and a specific activity of 34 mumol.min-1.mg protein-1. Molybdenum was found to co-migrate with the enzyme activity. The molybdenum content of purified preparations...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(89)80964-0
更新日期:1989-08-14 00:00:00
abstract::The thermophilic cyanobacterial strain, PCC7518, originally identified as 'Mastigocladus laminosus HTF' does not show branchings or heterocysts. The absence of branchings supports the later assignment to the genus Chlorogloeopsis. The absence of heterocysts may be the result of a mutation because heterocysts were obse...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(93)81499-p
更新日期:1993-02-08 00:00:00
abstract::Antibodies generated against synthetic peptides that correspond to highly conserved sequence motifs in the annexins reacted with a variety of annexins from different species. These include Xenopus laevis and Drosophila melanogaster, which contain cross-reacting polypeptides of apparent Mr 34,000 and 30,000. As expecte...
journal_title:FEBS letters
pub_type: 杂志文章
doi:10.1016/0014-5793(89)81668-0
更新日期:1989-12-04 00:00:00