Binding energy analysis for wild-type and Y181C mutant HIV-1 RT/8-Cl TIBO complex structures: quantum chemical calculations based on the ONIOM method.

Abstract excerpt

Two-layered and three-layered ONIOM calculations were performed to compare the binding energies of 8-Cl TIBO inhibitor when bound into the human immunodeficiency virus reverse transcriptase binding pocket and a Y181C variant. Both consisted of 20 residues within a radius of 15 A. A combination of different methods [MP2/6-31G(d), B3LYP/6-31G(d,p), and PM3] were performed to take advantage of ONIOM's layering...

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