1XXC:
reference: Structure of the oligomerization and L-arginine binding domain of the arginine repressor of Escherichia coli., Van Duyne GD, Ghosh G, Maas WK, Sigler PB, J Mol Biol 1996 Feb 23;256(2):377-91. PMID: 8594204

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).