5XUN:
reference: Identification and characterization of acetyltransferase-type toxin-antitoxin locus in Klebsiella pneumoniae., Qian H, Yao Q, Tai C, Deng Z, Gan J, Ou HY, Mol Microbiol. 2018 May;108(4):336-349. doi: 10.1111/mmi.13934. Epub 2018 Mar 8. PMID: 29461656

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