1CBV:
reference: An autoantibody to single-stranded DNA: comparison of the three-dimensional structures of the unliganded Fab and a deoxynucleotide-Fab complex., Herron JN, He XM, Ballard DW, Blier PR, Pace PE, Bothwell AL, Voss EW Jr, Edmundson AB, Proteins. 1991;11(3):159-75. PMID: 1749770

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