The emergence of different resistance mechanisms toward nucleoside inhibitors is explained by the properties of the wild type HIV-1 reverse transcriptase.

Abstract excerpt

Nucleoside reverse transcriptase inhibitors (NRTIs) represent one of the main drug families used against AIDS. Once incorporated in DNA, they act as chain terminators, due to the lack of a 3'-hydroxyl group. As for the other anti-human immunodeficiency virus type 1 drugs, their efficiency is limited by the emergence of resistant viral strains. Unexpectedly, previous studies indicated that resistance toward NRTIs...

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