Active Site
The active site of OTCase is formed at the subunit interfaces of the trimer.
Shown here is the active site containing carbamylphosphate (green) and norvaline (orange), an analog of ornithine.
His117 is a residue from an adjacent subunit shown in light blue.
Pasted Graphic

A schematic produced using LIGPLOT shows the distance in Angstroms to the ligands.

Pasted Graphic 1