Pictures showing the minimized receptor-ligand complexes for carazolol and isoproterenol after the simulations (50 ns). The β2-AR-carazolol complex is shown with the residues in red, the ligand in magenta, and the receptor backbone as a thick ribbon colored according to residue position (blue: N-terminus, red: C-terminus). The β2-AR-isoproterenol complex is shown with the residues in green, the ligand in yellow, and the receptor backbone as a thin white line.