2CMP:
reference: The 1.58 A resolution structure of the DNA-binding domain of bacteriophage SF6 small terminase provides new hints on DNA binding., Benini S, Chechik M, Ortiz Lombardia M, Polier S, Leech A, Shevtsov MB, Alonso JC, Acta Crystallogr Sect F Struct Biol Cryst Commun. 2013 Apr 1;69(Pt 4):376-81., doi: 10.1107/S1744309113004399. Epub 2013 Mar 28. PMID: 23545641

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