Figure 5 - full size

Figure 5.
Figure 5: The binding of CATR. a, Chemical formula of CATR. b, CATR within the binding pocket viewed from the outside. c, Electron density map at 2.2 Å resolution (2F[obs] - F[calc], contoured at 1 obtained before CATR modelling and including only protein atoms) around CATR. Residues directly within hydrogen-bond distances to CATR are labelled. Black arrowheads indicate van der Waals contacts between CATR and the protein. d, A close-up of the two CATR carboxylates interacting with arginines. Interatomic distances are given in Å.