| 4Z2Y: reference: Crystal structure of O-methyltransferase CalO6 from the calicheamicin biosynthetic pathway: a case of challenging structure determination at low resolution., Tsodikov OV, Hou C, Walsh CT, Garneau-Tsodikova S, BMC Struct Biol. 2015 Jul 15;15:13. doi: 10.1186/s12900-015-0040-6. PMID: 26170207 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).