Crystal structure of the ABL kinase in complex with imatinib was obtained from Protein Data Bank (PDB: 1IEP); PT5 was built by ChemDraw Professional 16. Before the docking simulations, PT5 and 1IEP preparation included the addition of hydrogens, the assignment of bond order, and assessment of the correct protonation as previously described [46 (link),47 (link)]. The MOE 2019.01 software (Chemical Computing Group, Montreal, Canada) was employed for the preparation, interactive docking, visualization and the analysis procedures using its default parameters [48 (link),49 (link),50 (link)].
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