A computationally designed binding mode flip leads to a novel class of potent tri-vector cyclophilin inhibitors

Alessio De Simone, Charis Georgiou, Harris Ioannidis, Arun A. Gupta, Jordi Juárez-jiménez, Dahlia Doughty-Shenton, Elizabeth A. Blackburn, Martin A. Wear, Jonathan P. Richards, Paul N. Barlow, Neil Carragher, Malcolm D. Walkinshaw, Alison N. Hulme, Julien Michel

Research output: Contribution to journalArticlepeer-review

Abstract

Cyclophilins (Cyps) are a major family of drug targets that are challenging to prosecute with small molecules because the shallow nature and high degree of conservation of the active site across human isoforms offers limited opportunities for potent and selective inhibition. Herein a computational approach based on molecular dynamics simulations and free energy calculations was combined with biophysical assays and X-ray crystallography to explore a flip in the binding mode of a reported urea-based Cyp inhibitor. This approach enabled access to a distal pocket that is poorly conserved among key Cyp isoforms, and led to the discovery of a new family of sub-micromolar cellactive inhibitors that offer unprecedented opportunities for the development of next-generation drug therapies based on Cyp inhibition. The computational approach is applicable to a broad range of organic functional groups and could prove widely enabling in molecular design.
Original languageEnglish
Pages (from-to)542-547
Number of pages6
JournalChemical Science
Volume10
Issue number2
Early online date23 Oct 2018
DOIs
Publication statusPublished - 14 Jan 2019

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