In AutoDock, when I drag and drop the PDB file, the binding pocket appears correctly (which I also, confirm by PyMOL and Discovery Studio), but the grid box center (X, Y, Z) is set to (0.0, 0.0, 0.0). However, when I load the protein via Grid → Macromolecule → Open, the grid box moves to the center of the protein, not the binding site.