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Large-Scale Virtual Screening Against the MET Kinase Domain Identifies a New Putative Inhibitor Type

Authors: Philippe Noel; Rosanna Dono; Alessandro Furlan; Alessandro Furlan; Bernard Maigret; Emmanuel Bresso; Vincent Leroux; +1 Authors

Large-Scale Virtual Screening Against the MET Kinase Domain Identifies a New Putative Inhibitor Type

Abstract

By using an ensemble-docking strategy, we undertook a large-scale virtual screening campaign in order to identify new putative hits against the MET kinase target. Following a large molecular dynamics sampling of its conformational space, a set of 45 conformers of the kinase was retained as docking targets to take into account the flexibility of the binding site moieties. Our screening funnel started from about 80,000 chemical compounds to be tested in silico for their potential affinities towards the kinase binding site. The top 100 molecules selected—thanks to the molecular docking results—were further analyzed for their interactions, and 25 of the most promising ligands were tested for their ability to inhibit MET activity in cells. F0514-4011 compound was the most efficient and impaired this scattering response to HGF (Hepatocyte Growth Factor) with an IC 50 of 7.2 μ M. Interestingly, careful docking analysis of this molecule with MET suggests a possible conformation halfway between classical type-I and type-II MET inhibitors, with an additional region of interaction. This compound could therefore be an innovative seed to be repositioned from its initial antiviral purpose towards the field of MET inhibitors. Altogether, these results validate our ensemble docking strategy as a cost-effective functional method for drug development.

Keywords

conformational selection, ensemble-docking, Organic chemistry, cross-docking validation, Molecular Dynamics Simulation, Proto-Oncogene Proteins c-met, virtual screening, Article, MET kinase, [SDV] Life Sciences [q-bio], Molecular Docking Simulation, met kinase, QD241-441, structure-based drug design, Humans, Protein Kinase Inhibitors, induced fit

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
10
Top 10%
Average
Top 10%
Green
gold