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Curr Opin Virol. 2013 Apr;3(2):111-8. doi: 10.1016/j.coviro.2013.03.012. Epub 2013 Apr 19.

HIV-1 reverse transcriptase and antiviral drug resistance. Part 1.

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Center for Advanced Biotechnology and Medicine (CABM), Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA.


HIV-1 reverse transcriptase (RT) contributes to the development of resistance to all anti-AIDS drugs by introducing mutations into the viral genome. At the molecular level, mutations in RT result in resistance to RT inhibitors. Eight nucleoside/nucleotide analogs (NRTIs) and five non-nucleoside inhibitors (NNRTIs) are approved HIV-1 drugs. Structures of RT have been determined in complexes with substrates and/or inhibitors, and the structures have illuminated different conformational and functional states of the enzyme. Understanding the molecular mechanisms of resistance to NRTIs and NNRTIs, and their complex relationships, may help in designing new drugs that are periodically required to overcome existing as well as emerging trends of drug resistance.

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