6CLU:
reference: The Structural and Functional Basis for Recurring Sulfa Drug Resistance Mutations in Staphylococcus aureus Dihydropteroate Synthase., Griffith EC, Wallace MJ, Wu Y, Kumar G, Gajewski S, Jackson P, Phelps GA, Zheng Z, Rock CO, Lee RE, White SW, Front Microbiol. 2018 Jul 17;9:1369. doi: 10.3389/fmicb.2018.01369. eCollection, 2018. PMID: 30065703

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