• Title/Summary/Keyword: binding affinity to RRE

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Studies on the Binding Affinity of Aminoglycoside Antibiotics to the HIV-l Rev Responsive Element for Designing Potential Antiviral Agents

  • Kwon, Young-Joo
    • Journal of Microbiology and Biotechnology
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    • v.16 no.1
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    • pp.109-117
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    • 2006
  • The Rev binding to Rev Responsive Element (RRE) of HIV-1 mRNA plays an important role in the HIV-I viral replication cycle. The disruption of the Rev-RRE interaction has been studied extensively in order to develop a potential antiviral drug. In order to provide the basis for a more promising approach to develop a Rev-RRE binding inhibitor against HIV-I infection, it is necessary to understand the binding modes of the aminoglycoside antibiotics to RRE. In the present study, the binding mode of a modified antibiotic, a neamine conjugated with pyrene and arginine (NCPA), to RRE has been studied by the methods of $T_m$ measurement and spectroscopic analysis of RRE with or without antibiotics. The results confirmed that NCPA competes with Rev in binding to RRE.

Isolation of cDNA Encoding Double-Stranded RNA Binding Protein (RBFII) (이중선RNA결합담백질(RBFII)의 cDNA분리)

  • 박희성
    • Journal of Life Science
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    • v.7 no.3
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    • pp.167-171
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    • 1997
  • As an initial effort to elucidate RNA: protein binding in a way to regulate translation initiation and phosphorylation, a cDNA encoding a double-stranded RNA binding factor (RBFII)was isolated from Hela ZAPII cDNA library by affinity screening using [$\alpha$$^{-32}$P] UMP-labeled HIV Rev-responsive element(RRE) RNA. The nucleotide sequence of RBF (or TRBP) cDNA except the 5’end. At the 5’end, This common ORF was fused in-frame to N-terminal residues of Lac-Z through a unique 138 nt sequence encoding 46residues in the case of RBFII and a 63 nt sequence encoding 21 residuces in the case of RBFI. The context of ATG appearing first in the sequences suggests that both these cDNA inserts are incomplete at the 5’end.

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