| 1TZN: reference: Structure of heptameric protective antigen bound to an anthrax toxin receptor: A role for receptor in pH-dependent pore formation., Lacy DB, Wigelsworth DJ, Melnyk RA, Harrison SC, Collier RJ, Proc Natl Acad Sci U S A 2004 Sep 7;101(36):13147-51. Epub 2004 Aug 23. PMID: 15326297 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).