5UFK:
reference: Molecular basis for the binding and modulation of V-ATPase by a bacterial effector protein., Zhao J, Beyrakhova K, Liu Y, Alvarez CP, Bueler SA, Xu L, Xu C, Boniecki MT, Kanelis V, Luo ZQ, Cygler M, Rubinstein JL, PLoS Pathog. 2017 Jun 1;13(6):e1006394. doi: 10.1371/journal.ppat.1006394., eCollection 2017 Jun. PMID: 28570695

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