2JGP:
reference: Structural and functional insights into a peptide bond-forming bidomain from a nonribosomal peptide synthetase., Samel SA, Schoenafinger G, Knappe TA, Marahiel MA, Essen LO, Structure. 2007 Jul;15(7):781-92. PMID: 17637339

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