3RB9:
reference: M. tuberculosis sliding beta-clamp does not interact directly with the NAD+-dependent DNA ligase., Kukshal V, Khanam T, Chopra D, Singh N, Sanyal S, Ramachandran R, PLoS One. 2012;7(4):e35702. Epub 2012 Apr 24. PMID: 22545130

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