2ROQ:
reference: Dynamic thiolation-thioesterase structure of a non-ribosomal peptide synthetase., Frueh DP, Arthanari H, Koglin A, Vosburg DA, Bennett AE, Walsh CT, Wagner G, Nature. 2008 Aug 14;454(7206):903-6. PMID: 18704088

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