Synthesis, activity, and structural analysis of novel alpha-hydroxytropolone inhibitors of human immunodeficiency virus reverse transcriptase-associated ribonuclease H.Chung, S., Himmel, D.M., Jiang, J.K., Wojtak, K., Bauman, J.D., Rausch, J.W., Wilson, J.A., Beutler, J.A., Thomas, C.J., Arnold, E., Le Grice, S.F.
(2011) J.Med.Chem. 54: 4462-4473
- PubMed: 21568335
- DOI: 10.1021/jm2000757
- PubMed Abstract:
- Structure of HIV-1 reverse transcriptase with the inhibitor beta-Thujaplicinol bound at the RNase H active site.
Himmel, D.M.,Maegley, K.A.,Pauly, T.A.,Bauman, J.D.,Das, K.,Dharia, C.,Clark, A.D.,Ryan, K.,Hickey, M.J.,Love, R.A.,Hughes, S.H.,Bergqvist, S.,Arnold, E.
(2009) Structure 17: 1625
- Sensitivity of Xenotropic Murine Leukemia Virus-Related Retrovirus Reverse Transcriptase-Associated Ribonuculease H to alpha-Hydroxytropolone Inhibitors
Chung, S.,Himmel, D.M.,Jiang, J.,Scarth, B.,Wang, Y.,Rausch, J.W.,Lee, K.,KewalRamani, V.,Arnold, E.,Gotte, M.,Beutler, J.A.,Thomas, C.R.,Le Grice, S.F.J.
() TO BE PUBLISHED --: --
- Crystal engineering of HIV-1 reverse transcriptase for structure-based drug design.
Bauman, J.D.,Das, K.,Ho, W.C.,Baweja, M.,Himmel, D.M.,Clark, A.D.,Oren, D.A.,Boyer, P.L.,Hughes, S.H.,Shatkin, A.J.,Arnold, E.
(2008) Nucleic Acids Res. 36: 5083
The α-hydroxytroplone, manicol (5,7-dihydroxy-2-isopropenyl-9-methyl-1,2,3,4-tetrahydro-benzocyclohepten-6-one), potently and specifically inhibits ribonuclease H (RNase H) activity of human immunodeficiency virus reverse transcriptase (HIV RT) in vi ...
The α-hydroxytroplone, manicol (5,7-dihydroxy-2-isopropenyl-9-methyl-1,2,3,4-tetrahydro-benzocyclohepten-6-one), potently and specifically inhibits ribonuclease H (RNase H) activity of human immunodeficiency virus reverse transcriptase (HIV RT) in vitro. However, manicol was ineffective in reducing virus replication in culture. Ongoing efforts to improve the potency and specificity over the lead compound led us to synthesize 14 manicol derivatives that retain the divalent metal-chelating α-hydroxytropolone pharmacophore. These efforts were augmented by a high resolution structure of p66/p51 HIV-1 RT containing the nonnucleoside reverse transcriptase inhibitor (NNRTI), TMC278 and manicol in the DNA polymerase and RNase H active sites, respectively. We demonstrate here that several modified α-hydroxytropolones exhibit antiviral activity at noncytotoxic concentrations. Inclusion of RNase H active site mutants indicated that manicol analogues can occupy an additional site in or around the DNA polymerase catalytic center. Collectively, our studies will promote future structure-based design of improved α-hydroxytropolones to complement the NRTI and NNRTI currently in clinical use.
RT Biochemistry Section, HIV Drug Resistance Program, National Cancer Institute-Frederick, Frederick, Maryland 21702, United States.