6CPS:
reference: Disulfide bridge formation influences ligand recognition by the ATAD2 bromodomain., Gay JC, Eckenroth BE, Evans CM, Langini C, Carlson S, Lloyd JT, Caflisch A, Glass KC, Proteins. 2018 Dec 6. doi: 10.1002/prot.25636. PMID: 30520161

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