3G77:
reference: Bacterial cytosine deaminase mutants created by molecular engineering show improved 5-fluorocytosine-mediated cell killing in vitro and in vivo., Fuchita M, Ardiani A, Zhao L, Serve K, Stoddard BL, Black ME, Cancer Res. 2009 Jun 1;69(11):4791-9. PMID: 19487291

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