2JUB:
reference: Restriction Endonuclease Inhibitor IPI* of Bacteriophage T4: A Novel Structure for a Dedicated Target., Rifat D, Wright NT, Varney KM, Weber DJ, Black LW, J Mol Biol. 2007 Nov 1;. PMID: 18037438

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