1GE8:
reference: Crystal structure of an archaeal DNA sliding clamp: proliferating cell nuclear antigen from Pyrococcus furiosus., Matsumiya S, Ishino Y, Morikawa K, Protein Sci 2001 Jan;10(1):17-23. PMID: 11266590

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