AZT-resistant HIV-1 reverse transcriptase: Difference between revisions

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==AZT Resistance==
==AZT Resistance==
There are two basic types of resistance mechanisms currently known for HIV-1:
There are two basic types of resistance mechanisms currently known for HIV-1:
1. exclusion- discrimination between AZTTP and dTTP at the time that AZTTP is incorporated
1. exclusion- discrimination between AZTTP and dTTP at the time that AZTTP is incorporated
2. excision- removal of AZTTP from the viral DNA after it has been incorporated into the host genome
2. excision- removal of AZTTP from the viral DNA after it has been incorporated into the host genome