Solution kinetics measurements suggest HIV-1 protease has two binding sites for darunavir and amprenavir

Andrey Y. Kovalevsky, Arun K. Ghosh, Irene T. Weber

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Darunavir, a potent antiviral drug, showed an unusual second binding site on the HIV-1 protease dimer surface of the V32I drug resistant mutant and normal binding in the active site cavity. Kinetic analysis for wild type and mutant protease showed mixed-type competitive-uncompetitive inhibition for darunavir and the chemically related amprenavir, while saquinavir showed competitive inhibition. The inhibition model is consistent with the observed second binding site for darunavir and helps to explain its antiviral potency.

Original languageEnglish
Pages (from-to)6599-6603
Number of pages5
JournalJournal of Medicinal Chemistry
Volume51
Issue number20
DOIs
StatePublished - Oct 23 2008
Externally publishedYes

Funding

FundersFunder number
National Institute of General Medical SciencesR37GM053386

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