| 2V64: reference: The Mad2 conformational dimer: structure and implications for the spindle assembly checkpoint., Mapelli M, Massimiliano L, Santaguida S, Musacchio A, Cell. 2007 Nov 16;131(4):730-43. PMID: 18022367 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).