Autor(es)

Silva, Rudielson Santos ; Souza, Lucas Miguel Pereira ; Costa, Rayla Kelly Magalhaes ; Souza, Felipe Rodrigues ; Pimentel, Andre Silva

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS; v. N/A, p. 12-pg., 2022-12-02.

Resumo

The interactions of the antiviral pentapeptide ATN-161 with the closed and open conformations of the alpha 5 beta 1 integrin, the SARS-CoV-2 major protease, and the omicron variant spike protein complexed with hACE2 were studied using molecular docking and molecular dynamics simulation. Molecular docking was performed to obtain ATN-161 binding poses with these studied protein targets. Subsequently, molecular dynamics simulations were performed to verify the ligand stability at the binding site of each protein target. Pulling simulations, umbrella sampling, and weighted histogram analysis method were used to obtain the potential of mean force of each system and calculate the Gibbs free energy of binding for the ATN-161 peptide in each binding site of these protein targets. The results showed that ATN-161 binds to alpha 5 beta 1 integrin in its active and inactive form, binds weakly to the omicron variant spike protein complexed with hACE2, and strongly binds to the main protease target.Communicated by Ramaswamy H. Sarma (AU)

• Processo FAPESP: 14/50983-3 - INCT 2014: fluidos complexos
• Beneficiário: Antonio Martins Figueiredo Neto
• Modalidade de apoio: Auxílio à Pesquisa - Temático