| 4AMP: reference: Crystal structure of the acyltransferase domain of the iterative polyketide synthase in enediyne biosynthesis., Liew CW, Nilsson M, Chen MW, Sun H, Cornvik T, Liang ZX, Lescar J, J Biol Chem. 2012 May 15. PMID: 22589546 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).