Figure 3.
A) A predicted mode of compound 6a (orange stick model) binding with tubulin (PDB ID code: 3HKD), and overlapping with TN16 (cyan stick model, the native ligand of 3HKD); B) The superimposition of docked compound 6a with DMDA-colchicine (green stick model, the native ligand of 1SA0) and CA-4 (blue stick model). Surrounding amino acid side chains are shown in gray stick format and labeled. The hydrogen bonds are shown by green dashed lines and the distance between the ligands and protein is less than 3 Å