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High-affinity ssDNA inhibitors of the re ... 1 human immunodeficiency virus
High-affinity ssDNA inhibitors of the reverse transcriptase of type 1 human immunodeficiency virus.
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The reverse transcriptase (RT) of HIV-1 is a plausible target for therapeutic agents aimed at inhibiting propagation of the virus. We have used irrational drug design, that is, combinatorial chemistry with oligonucleotide libraries, to identify high-affinity ligands aimed at HIV-1 RT. The methodology, termed SELEX (systematic evolution of ligands by exponential enrichment), was employed with a single-stranded DNA library. The selected ssDNA ligands bind HIV-1 RT with Kd values as low as 1 nM and inhibit the RNA-dependent DNA-polymerase activity of the enzyme with Ki values as low as 0.3 nM. We also demonstrate the high specificity of one ligand able to selectively discriminate between the reverse transcriptases of HIV-1, AMV, and MMLV. These ssDNA molecules may be useful as inhibitors or as models for the design of small molecule inhibitors of HIV-1 RT in vivo.
Schneider DJ, Feigon J, Hostomsky Z, Gold L
Biochemistry
1995-07-25 00:00
34
29
9599-610
Antiviral Agents,Avian myeloblastosis virus,Base Sequence,Binding Sites,Cloning, Molecular,DNA, Single-Stranded,Databases, Factual,Drug Design,HIV-1,HIV-1 Reverse Transcriptase,Kinetics,Mammary Tumor Virus, Mouse,Molecular Sequence Data,Nucleic Acid Conformation,Oligodeoxyribonucleotides,Polymerase Chain Reaction,Recombinant Proteins,Reverse Transcriptase Inhibitors,Templates, Genetic,Antiviral Agents,DNA, Single-Stranded,Oligodeoxyribonucleotides,Recombinant Proteins,Reverse Transcriptase Inhibitors,HIV-1 Reverse Transcriptase
Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder 80309, USA
Biochemistry
NIGMS GM 19963, NIGMS GM 28685, NIGMS P01 GM 39558
0006-2960
406
True
7542922
