1XXH:
reference: Structural analysis of the inactive state of the Escherichia coli DNA polymerase clamp-loader complex., Kazmirski SL, Podobnik M, Weitze TF, O'Donnell M, Kuriyan J, Proc Natl Acad Sci U S A 2004 Nov 30;101(48):16750-5. Epub . PMID: 15556993

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