5UP3:
reference: Structure-Based Design of ASK1 Inhibitors as Potential Agents for Heart Failure., Lanier M, Pickens J, Bigi SV, Bradshaw-Pierce EL, Chambers A, Cheruvallath ZS, Cole D, Dougan DR, Ermolieff J, Gibson T, Halkowycz P, Hirokawa A, Ivetac A, Miura J, Nunez E, Sabat M, Tyhonas J, Wang H, Wang X, Swann S, ACS Med Chem Lett. 2017 Feb 8;8(3):316-320. doi: 10.1021/acsmedchemlett.6b00481. , eCollection 2017 Mar 9. PMID: 28337323

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