Aurintricarboxylic Acid
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. SÍNTESE E CARACTERIZAÇÃO DO COMPLEXO DE ALUMÍNIO COM O AURINTRICARBOXILATO DE AMÔNIO (ATA) COMO LIGANTE. / SYNTHESIS AND CHARACTERIZATION OF ALUMINUM COMPLEX WITH AURINTRICARBOXILATO AMMONIUM (ATA) AS A BINDER
O complexo [Al(H2ATA)]SO4.H2O foi sintetizado e caracterizado com objetivo de entender a coordenação do ligante aurintricarboxilato ao metal alumínio, uma vez que este metal é considerado para comunidade científica como neurotóxico. O composto apresenta fórmula molecular [Al(H2ATA)]SO4.H2O. O complexo foi caracterizado por analise elementar, técnicas
Publicado em: 2009
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2. Caracterização da DNase da peçonha da serpente Bothrops alternatus : comparação com a DNase acida de mamiferos envolvida em apoptose / Characterization of a Dnase from Bothrops alternatus snake venom : comparision with mamalian acid Dnases involved in apoptosis
Bothrops snake venoms are cytotoxic to a variety of cells (endothelial, smooth muscle, renal and inflammatory cells), and may cause cell death by apoptosis. The venom components implicated in apoptosis include metalloproteinases and L-amino acid oxidase. In contrast, although acidic deoxyribonucleases (DNase II) have been implicated in DNA fragmentation duri
Publicado em: 2008
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3. Aurintricarboxylic Acid: Inhibitor of Initiation of Protein Synthesis
Aurintricarboxylic acid prevents the attachment of bacteriophage messenger RNA to ribosomes. As a consequence, initiation of protein synthesis in cell-free extracts prepared from Escherichia coli or rabbit reticulocytes is inhibited at concentrations of dye that do not prevent chain extension. Its properties can be distinguished from other agents that inhibi
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4. Use of aurintricarboxylic acid as an inhibitor of nucleases during nucleic acid isolation.
Aurintricarboxylic acid (ATA) is a general inhibitor of nucleases. ATA has been shown to inhibit the following enzymes in vitro: DNAse I, RNAse A, S1 nuclease, exonuclease III, and restriction endonucleases Sal I, Bam HI, Pst I and Sma I. The observed inhibition is consistent with the proposal by Blumenthal and Landers (BBRC 55, 680, 1973) that most nucleic
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5. Aurintricarboxylic Acid, a Preferential Inhibitor of Initiation of Protein Synthesis
The effect of aurintricarboxylic acid (ATA) was tested on various aspects of protein synthesis directed by the natural messenger ribonucleic acid (RNA) isolated from R17 RNA bacteriophage. The effects of various levels of ATA (up to 1,000 μm) were tested on overall protein synthesis as well as on binding of messenger RNA and fmet-transfer RNA to ribosomes a
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6. Inhibition of Polyuridylic Acid-Directed Protein Synthesis by Aurintricarboxylate in Extracts of Escherichia coli
Aurintricarboxylic acid (ATA) inhibits protein synthesis directed by polyuridylic acid. All steps tested are inhibited by ATA. We conclude that inhibition of polyphenylalanine formation is an additive effect of inhibition of various steps in the protein synthetic machinery.
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7. Inhibition by aurintricarboxylic acid and polyethylene sulfonate of RNA transcription of vesicular stomatitis virus.
The in vitro activity of the ribonucleoprotein-dependent RNA transcriptase of vesicular stomatitis virions was found to be completely inhibited by low concentrations of aurintricarboxylic acid (ATA) and polyethylene sulfonic acid (PES) when these inhibitors were added before the start of the RNA polymerase reaction. However, if RNA synthesis was allowed to o
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8. Inhibition of RNA-directed DNA polymerase by aurintricarboxylic acid.
Commercial-grade aurintricarboxylic acid (ATA) inhibits poly(A), poly(C) and viral RNA-directed DNA synthesis by detergent-disrupted virions of Moloney murine leukemia virus. Paper chromatography of crude ATA yields two active components, which appear to behave identically, and at least two inactive components. The concentration of ATA needed to inhibit poly
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9. Initiation of RNA synthesis in vitro by vesicular stomatitis virus: single internal initiation in the presence of aurintricarboxylic acid and vanadyl ribonucleoside complexes.
In the presence of aurintricarboxylic acid (ATA) and vanadyl ribonucleoside complexes (VRC), we have isolated and characterized a small RNA, product of VSV in vitro transcription. This RNA is capped and lacks poly(A) at its 3'-end. Nucleotide sequence analysis revealed that this RNA corresponds to the 5'-terminal transcription product of the N-gene. The term
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10. Specific interaction of aurintricarboxylic acid with the human immunodeficiency virus/CD4 cell receptor.
The triphenylmethane derivative aurintricarboxylic acid (ATA), but not aurin, selectively prevented the binding of OKT4A/Leu-3a monoclonal antibody (mAb) and, to a lesser extent, OKT4 mAb to the CD4 cell receptor for human immunodeficiency virus type 1 (HIV-1). The effect was seen within 1 min at an ATA concentration of 10 microM in various T4+ cells (MT-4,
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11. Mitochondrial membrane biogenesis: identification of a precursor to yeast cytochrome c oxidase subunit II, an integral polypeptide.
Many of the polypeptides made on endogenous ribosomes inside of yeast mitochondria are hydrophobic "integral polypeptides" which are subunits of at least three oligomeric enzyme complexes (cytochrome c oxidase, rutamycin-sensitive ATPase, and coenzyme QH2-cytochrome c reductase) of the inner mitochondrial membrane. In order to elucidate the pathway(s) follow
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12. Aurintricarboxylic acid prevents GLUR2 mRNA down-regulation and delayed neurodegeneration in hippocampal CA1 neurons of gerbil after global ischemia
Aurintricarboxylic acid (ATA), an inhibitor of endonuclease activity and other protein–nucleic acid interactions, blocks apoptosis in several cell types and prevents delayed death of hippocampal pyramidal CA1 neurons induced by transient global ischemia. Global ischemia in rats and gerbils induces down-regulation of GluR2 mRNA and increased α-amino-3-hydr
The National Academy of Sciences.