4LTT:
reference: Crystal structure of apo and copper bound HP0894 toxin from Helicobacter pylori 26695 and insight into mRNase activity., Pathak C, Im H, Yang YJ, Yoon HJ, Kim HM, Kwon AR, Lee BJ, Biochim Biophys Acta. 2013 Dec;1834(12):2579-90. doi:, 10.1016/j.bbapap.2013.09.006. Epub 2013 Sep 21. PMID: 24060809

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