Drug targeting of HIV-1 RNA.DNA hybrid structures: Thermodynamics of recognition and impact on reverse transcriptase-mediated ribonuclease H activity and viral replication

An approach for inhibiting the ribonuclease H (RNase H) activity of human immunodeficiency virus type I (HIV-I) reverse transcriptase (RT) is demonstrated by targeting RNase H RNA.DNA hybrid substrates. In this approach the binding of the 4,5-disubstituted 2-deoxystreptamine aminoglycosides, neomycin, paromomycin and ribostamycin, to two different chimeric RNA-DNA duplexes inhibits specific RT-mediated RNase cleavage in competitive manner.