| 3C9I: reference: Structural plasticity of the phage P22 tail needle gp26 probed with xenon gas., Olia AS, Casjens S, Cingolani G, Protein Sci. 2009 Mar;18(3):537-48. PMID: 19241380 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).