| 1TN0: reference: Proline substitutions are not easily accommodated in a membrane protein., Yohannan S, Yang D, Faham S, Boulting G, Whitelegge J, Bowie JU, J Mol Biol 2004 Jul 30;341(1):1-6. PMID: 15312757 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).