Figure 4 - full size

Figure 4.
Figure 4. (a) A stereo view of the catalytic site showing interactions between TTR and both AcCoA and the tightly bound water molecule; GRASP surfaces showing the AcCoA-binding pocket viewed from the front (b) and back (c), respectively (color coded according to electrostatic potential: blue corresponds to 20k[B]T; white, 0k[B]T; and red, -20k[B]T). (b) The front view, with two polar regions inside the hydrophobic-binding pocket. The positive region indicated in blue corresponds to residue Lys95 and the negative region in red corresponds to residues Glu92 and Asp130. (c) The back view.