FIG. 1.
Predicted local three-dimensional structure of SSAP around the side chain of the substrate. The partial enzyme structure is indicated by a ribbon diagram. The residues surrounding the side chain of a substrate (free l-Phe, l-Leu, or l-Met) are indicated by a stick model. The bound substrate is indicated by a dark gray stick model. Distances between the side chain of the substrate and surrounding residues were calculated using Swiss-PdbViewer 3.7.