The Power of Molecular Dynamics Simulations and Their Applications to Discover Cysteine Protease Inhibitors

• Published in: Mini reviews in medicinal chemistry Vol. 24; no. 11; p. 1125
• Main Authors: Dos Santos Nascimento, Igor José, Gomes, Joilly Nilce Santana, de Oliveira Viana, Jéssika, de Medeiros E Silva, Yvnni Maria Sales, Barbosa, Euzébio Guimarães, de Moura, Ricardo Olimpio
• Format: Journal Article
• Language: English
• Published: Netherlands 01-01-2024
• Subjects: Cysteine Proteases - chemistry; Cysteine Proteases - metabolism; Cysteine Proteinase Inhibitors - chemistry; Cysteine Proteinase Inhibitors - metabolism; Cysteine Proteinase Inhibitors - pharmacology; Drug Discovery; Humans; Molecular Dynamics Simulation; SARS-CoV-2 - drug effects; SARS-CoV-2 - enzymology; Neglected tropical diseases; cysteine protease; molecular mechanics; computational chemistry; molecular modeling; computer-aided drug design
• ISSN: 1875-5607
• DOI: 10.2174/1389557523666230901152257

A large family of enzymes with the function of hydrolyzing peptide bonds, called peptidases or cysteine proteases (CPs), are divided into three categories according to the peptide chain involved. CPs catalyze the hydrolysis of amide, ester, thiol ester, and thioester peptide bonds. They can be divided into several groups, such as papain-like (CA), viral chymotrypsin-like CPs (CB), papainlike endopeptidases of RNA viruses (CC), legumain-type caspases (CD), and showing active residues of His, Glu/Asp, Gln, Cys (CE). The catalytic mechanism of CPs is the essential cysteine residue present in the active site. These mechanisms are often studied through computational methods that provide new information about the catalytic mechanism and identify inhibitors. The role of computational methods during drug design and development stages is increasing. Methods in Computer-Aided Drug Design (CADD) accelerate the discovery process, increase the chances of selecting more promising molecules for experimental studies, and can identify critical mechanisms involved in the pathophysiology and molecular pathways of action. Molecular dynamics (MD) simulations are essential in any drug discovery program due to their high capacity for simulating a physiological environment capable of unveiling significant inhibition mechanisms of new compounds against target proteins, especially CPs. Here, a brief approach will be shown on MD simulations and how the studies were applied to identify inhibitors or critical information against cysteine protease from several microorganisms, such as
(cruzain),
(rhodesain),
. (falcipain), and SARS-CoV-2 (M
). We hope the readers will gain new insights and use our study as a guide for potential compound identifications using MD simulations.