5NOC:
reference: The structural basis for dynamic DNA binding and bridging interactions which condense the bacterial centromere., Fisher GL, Pastrana CL, Higman VA, Koh A, Taylor JA, Butterer A, Craggs T, Sobott F, Murray H, Crump MP, Moreno-Herrero F, Dillingham MS, Elife. 2017 Dec 15;6. doi: 10.7554/eLife.28086. PMID: 29244022

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