2GWS:
reference: Promiscuous mismatch extension by human DNA polymerase lambda., Picher AJ, Garcia-Diaz M, Bebenek K, Pedersen LC, Kunkel TA, Blanco L, Nucleic Acids Res. 2006 Jun 28;34(11):3259-66. Print 2006. PMID: 16807316

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