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Effects of Drug-resistant Mutations on the Dynamic Properties of HIV-1 Protease and Inhibition by Amprenavir and Darunavir

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Journal Sci Rep
Specialty Science
Date 2015 May 28
PMID 26012849
Citations 20
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Abstract

Molecular dynamics simulations are performed to investigate the dynamic properties of wild-type HIV-1 protease and its two multi-drug-resistant variants (Flap + (L10I/G48V/I54V/V82A) and Act (V82T/I84V)) as well as their binding with APV and DRV inhibitors. The hydrophobic interactions between flap and 80 s (80's) loop residues (mainly I50-I84' and I50'-I84) play an important role in maintaining the closed conformation of HIV-1 protease. The double mutation in Act variant weakens the hydrophobic interactions, leading to the transition from closed to semi-open conformation of apo Act. APV or DRV binds with HIV-1 protease via both hydrophobic and hydrogen bonding interactions. The hydrophobic interactions from the inhibitor is aimed to the residues of I50 (I50'), I84 (I84'), and V82 (V82') which create hydrophobic core clusters to further stabilize the closed conformation of flaps, and the hydrogen bonding interactions are mainly focused with the active site of HIV-1 protease. The combined change in the two kinds of protease-inhibitor interactions is correlated with the observed resistance mutations. The present study sheds light on the microscopic mechanism underlying the mutation effects on the dynamics of HIV-1 protease and the inhibition by APV and DRV, providing useful information to the design of more potent and effective HIV-1 protease inhibitors.

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References
1.
Duan Y, Wu C, Chowdhury S, Lee M, Xiong G, Zhang W . A point-charge force field for molecular mechanics simulations of proteins based on condensed-phase quantum mechanical calculations. J Comput Chem. 2003; 24(16):1999-2012. DOI: 10.1002/jcc.10349. View

2.
Foulkes-Murzycki J, Rosi C, Yilmaz N, Shafer R, Schiffer C . Cooperative effects of drug-resistance mutations in the flap region of HIV-1 protease. ACS Chem Biol. 2012; 8(3):513-8. PMC: 3805267. DOI: 10.1021/cb3006193. View

3.
Scott W, Schiffer C . Curling of flap tips in HIV-1 protease as a mechanism for substrate entry and tolerance of drug resistance. Structure. 2001; 8(12):1259-65. DOI: 10.1016/s0969-2126(00)00537-2. View

4.
Lange O, Grubmuller H . Generalized correlation for biomolecular dynamics. Proteins. 2005; 62(4):1053-61. DOI: 10.1002/prot.20784. View

5.
Tozzini V, Trylska J, Chang C, McCammon J . Flap opening dynamics in HIV-1 protease explored with a coarse-grained model. J Struct Biol. 2006; 157(3):606-15. DOI: 10.1016/j.jsb.2006.08.005. View