| 4BWG: reference: Structural basis of subtilase cytotoxin SubAB assembly., Le Nours J, Paton AW, Byres E, Troy S, Herdman BP, Johnson MD, Paton JC, Rossjohn J, Beddoe T, J Biol Chem. 2013 Aug 6. PMID: 23921389 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).