4WPG:
reference: GacA is Essential for Group A Streptococcus and Defines a New Class of Monomeric dTDP-4-dehydrorhamnose Reductases (RmlD)., van der Beek SL, Le Breton Y, Ferenbach AT, Chapman RN, van Aalten DM, Navratilova I, Boons GJ, McIver K, van Sorge NM, Dorfmueller HC, Mol Microbiol. 2015 Aug 17. doi: 10.1111/mmi.13169. PMID: 26278404

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