1ROP:
reference: Structure of the ColE1 rop protein at 1.7 A resolution., Banner DW, Kokkinidis M, Tsernoglou D, J Mol Biol 1987 Aug 5;196(3):657-75. PMID: 3681971

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