title: Molecular dynamics simulation studies of the wild type and E92Q/N155H mutant of Elvitegravir-resistance HIV-1 integrase.
abstract: Although Elvitegravir (EVG) is a newly developed antiretrovirals drug to treat the acquired immunodeficiency syndrome (AIDS), drug resistance has already been found in clinic, such as E92Q/N155H and Q148H/G140S. Several structural investigations have already been reported to reveal the molecular mechanism of the drug resistance. As full length crystal structure for HIV-1 integrase is still unsolved, we herein use the crystal structure of the full length prototype foamy virus (PFV) in complex with virus DNA and inhibitor Elvitegravir as a template to construct the wild type and E92Q/N155H mutant system of HIV-1 integrase. Molecular dynamic simulations was used to revel the binding mode and the drug resistance of the EVG ligand in E92Q/N155H. Several important interactions were discovered between the mutated residues and the residues in the active site of the E92Q/N155H double mutant pattern, and cross correlation and clustering methods were used for detailed analysis. The results from the MD simulation studies will be used to guide the experimental efforts of developing novel inhibitors against drug-resistant HIV integrase mutants.
authors.affiliation: State Key Laboratory of Microbial Metabolism and College of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Chen
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Cheng
authors.forename: Dongqing
authors.initials: D
authors.lastname: Wei
authors.forename: Qin
authors.initials: Q
authors.lastname: Xu
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000821:virology; D020134:Catalytic Domain; D004279:DNA, Viral; D024882:Drug Resistance, Viral; D005838:Genotype; D019427:HIV Integrase / Q000235:genetics*; D019428:HIV Integrase Inhibitors / Q000737:chemistry / Q000494:pharmacology; D015497:HIV-1 / Q000201:enzymology / Q000235:genetics*; D006801:Humans; D056004:Molecular Dynamics Simulation; D009154:Mutation; D015363:Quinolones / Q000737:chemistry / Q000494:pharmacology
chemical_list: D004279:DNA, Viral; D019428:HIV Integrase Inhibitors; D015363:Quinolones; C509700:elvitegravir; D019427:HIV Integrase; C514801:p31 integrase protein, Human immunodeficiency virus 1