Computational and structure-based methods to predict resistance mutations in HIV reverse transcriptase
by
 
Azeem, Syeda Maryam, author.

Title
Computational and structure-based methods to predict resistance mutations in HIV reverse transcriptase

Author
Azeem, Syeda Maryam, author.

ISBN
9780438078963

Personal Author
Azeem, Syeda Maryam, author.

Physical Description
1 electronic resource (77 pages)

General Note
Source: Masters Abstracts International, Volume: 57-06M(E).
 
Advisors: Kathleen M. Frey.

Abstract
Non-nucleoside reverse transcriptase Inhibitors (NNRTIs) are antiretroviral drugs that bind to an allosteric site in HIV reverse transcriptase (RT). NNRTIs are often associated with treatment failure due to emergence of resistance mutations. Rilpivirine (RPV) and etravirine (ETV) were designed as a flexible diarylpyrimidines (DAPYs) that can adapt to multiple mutations in the NNRTI binding site. We have established a computational, structure-based method to predict resistance mutations to NNRTIs and similar compounds in development. The objective of this study is to examine this approach for 2 types of NNRTIs: DAPY and non-DAPY. RPV and ETV were selected for the analysis and resistance prediction of DAPY NNRTIs. Doravirine (DOR) was selected as a non-DAPY NNRTI for this study. In our approach, we employed molecular docking and residue scanning to predict resistance to both NNRTIs. Results from residue scanning predicted that the K101 P mutation conferred high level resistance to RPV and ETV. DOR remained susceptible to the K101 P mutation. These predicted results were further validated through structural analysis, molecular dynamics, and an enzymatic reverse transcription assay. Our results indicate that stability and affinity changes in RT in complex with NNRTIs are accurate predictors of drug resistance. As this is a proof of concept study, we believe that our computational and structure-based approach may be used to predict resistance to diverse inhibitors in development.

Local Note
School code: 0198

Subject Term
Pharmacology.
 
Biochemistry.

Added Corporate Author
Long Island University, The Brooklyn Center.

Electronic Access
http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqm&rft_dat=xri:pqdiss:10868685


Shelf NumberItem BarcodeShelf LocationShelf LocationHolding Information
XX(696239.1)696239-1001Proquest E-Thesis CollectionProquest E-Thesis Collection