2D-QSAR, Docking, Molecular Dynamics Simulations with the MM/GBSA Approaches against Graves' Disease and PTPN22

Emmanuel Israel Edache (1) , Adamu Uzairu (2) , Paul Andrew Mamza (3) , Gideon Adamu Shallangwa (4)
(1) University of Maiduguri , Nigeria
(2) Ahmadu Bello University , Nigeria
(3) Ahmadu Bello University , Nigeria
(4) Ahmadu Bello University , Nigeria


Graves' disease (GD) is an autoimmune condition that frequently causes hyperthyroidism and thyrotoxicosis. Protein tyrosine phosphatase, non-receptor type 22 (lymphoid) isoform 1 (PTPN22), is a promising therapeutic candidate for treating GD, rheumatoid arthritis, type 1 diabetes, and other autoimmune disorders. In this dataset, 31 molecular compounds and two standard drugs were optimized using the semi-empirical PM7 theory method via MOPAC v22.0.4 to reveal the key influencing factors contributing to their grave's disease inhibition activity and selectivity. Using QSARIN software, the acquired properties/descriptors were used to create a quantitative structural activities relationship (QSAR) model, and the similarities between the observed and predicted pIC50 values were examined. A molecular docking simulation study also uncovers non-covalent interactions between the investigated compounds and the receptors. The observed ligand-protein interactions with GD proteins (PDB ID 2XPG and 4QT5) and PTPN22 (PDB ID 3BRH) were investigated. The pharmacokinetics (ADMET) properties were also investigated. Finally, molecular dynamics (MD) simulation and MM/GBSA studies that demonstrated stable trajectory and molecular properties with a consistent interaction profile were used to validate the stability of the compounds in the complex with PTPN22.

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Emmanuel Israel Edache
edacheson2004@gmail.com (Primary Contact)
Adamu Uzairu
Paul Andrew Mamza
Gideon Adamu Shallangwa
Author Biographies

Emmanuel Israel Edache, University of Maiduguri

Department of Pure and Applied Chemistry, University of Maiduguri, Maiduguri, Borno State, Nigeria

Department of Chemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria

Adamu Uzairu, Ahmadu Bello University

Department of Chemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria


Paul Andrew Mamza, Ahmadu Bello University

Department of Chemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria

Gideon Adamu Shallangwa, Ahmadu Bello University

Department of Chemistry, Ahmadu Bello University, Zaria, Kaduna State, Nigeria

Edache EI, Uzairu A, Mamza PA, Shallangwa GA. 2D-QSAR, Docking, Molecular Dynamics Simulations with the MM/GBSA Approaches against Graves’ Disease and PTPN22. Borneo J Pharm [Internet]. 2023Aug.30 [cited 2023Dec.10];6(3):229-48. Available from: https://journal.umpr.ac.id/index.php/bjop/article/view/4915

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