1BPY:
reference: Crystal structures of human DNA polymerase beta complexed with gapped and nicked DNA: evidence for an induced fit mechanism., Sawaya MR, Prasad R, Wilson SH, Kraut J, Pelletier H, Biochemistry 1997 Sep 16;36(37):11205-15. PMID: 9287163

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