1PAX:
reference: Structure of the catalytic fragment of poly(AD-ribose) polymerase from chicken., Ruf A, Mennissier de Murcia J, de Murcia G, Schulz GE, Proc Natl Acad Sci U S A 1996 Jul 23;93(15):7481-5. PMID: 8755499

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