5N2H:
reference: The vaccinia virus DNA polymerase structure provides insights into the mode of processivity factor binding., Tarbouriech N, Ducournau C, Hutin S, Mas PJ, Man P, Forest E, Hart DJ, Peyrefitte CN, Burmeister WP, Iseni F, Nat Commun. 2017 Nov 13;8(1):1455. doi: 10.1038/s41467-017-01542-z. PMID: 29129932

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