5YEP:
reference: Structure-function analyses reveal the molecular architecture and neutralization mechanism of a bacterial HEPN-MNT toxin-antitoxin system., Jia X, Yao J, Gao Z, Liu G, Dong YH, Wang X, Zhang H, J Biol Chem. 2018 May 4;293(18):6812-6823. doi: 10.1074/jbc.RA118.002421. Epub, 2018 Mar 19. PMID: 29555683

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