Identification of a Novel Scaffold for Allosteric Inhibition of Wild Type and Drug Resistant HIV-1 Reverse Transcriptase by Fragment Library Screening

M. Geitmann, M Elinder, C Seeger, P Brandt, I.J.P. de Esch, U.H. Danielson

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

A novel scaffold inhibiting wild type and drug resistant variants of human immunodeficiency virus type 1 reverse transcriptase (HIV-1RT) has been identified in a library consisting of 1040 fragments. The fragments were significantly different from already known non-nucleoside reverse transcriptase inhibitors (NNRTIs), as indicated by a Tversky similarity analysis.Ascreening strategy involvingSPRbiosensor-based interaction analysis and enzyme inhibition was used. Primary biosensor-based screening, using short concentration series,was followed by analysis of nevirapine competition and enzyme inhibition, thus identifying inhibitory fragments binding to the non-nucleoside reverse transcriptase inhibitor (NNRTI) binding site. Ten hits were discovered, and their affinities and resistance profiles were evaluated with wild type and three drug resistant enzyme variants (K103N, Y181C, and L100I). One fragment exhibited submillimolar K
Original languageEnglish
Pages (from-to)699
JournalJournal of Medicinal Chemistry
Volume54
DOIs
Publication statusPublished - 2011

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