6533b830fe1ef96bd1297136

RESEARCH PRODUCT

Computational simulations on the binding and reactivity of a nitrile inhibitor of the SARS-CoV-2 main protease.

J. Javier Ruiz-perníaCarlos A. Ramos-guzmánIñaki Tuñón

subject

Reaction mechanismNitrileLactamsProlineStereochemistrymedicine.medical_treatmentMolecular Dynamics SimulationCatalysischemistry.chemical_compoundMolecular dynamicsLeucineCatalytic DomainNitrilesMaterials ChemistrymedicineMoleculeHumansReactivity (chemistry)Protease InhibitorsBinding siteCoronavirus 3C ProteasesProteaseBinding SitesSARS-CoV-2Metals and AlloysCOVID-19General ChemistrySurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryCovalent bondCeramics and CompositesQuantum TheoryThermodynamics

description

We present a detailed computational analysis of the binding mode and reactivity of the novel oral inhibitor PF-07321332 developed against the SARS-CoV-2 3CL protease. Alchemical free energy calculations suggest that positions P3 and P4 could be susceptible to improvement in order to get a larger binding strength. QM/MM simulations unveil the reaction mechanism for covalent inhibition, showing that the nitrile warhead facilitates the recruitment of a water molecule for the proton transfer step.

10.1039/d1cc03953ahttps://pubmed.ncbi.nlm.nih.gov/34498651