5FPR:
reference: Fragment-based discovery of 6-azaindazoles as inhibitors of bacterial DNA ligase., Howard S, Amin N, Benowitz AB, Chiarparin E, Cui H, Deng X, Heightman TD, Holmes DJ, Hopkins A, Huang J, Jin Q, Kreatsoulas C, Martin AC, Massey F, McCloskey L, Mortenson PN, Pathuri P, Tisi D, Williams PA, ACS Med Chem Lett. 2013 Oct 18;4(12):1208-12. doi: 10.1021/ml4003277. eCollection, 2013 Dec 12. PMID: 24900632

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