| 4HKJ: reference: Structural Mechanism of ER Retrieval of MHC Class I by Cowpox., McCoy WH 4th, Wang X, Yokoyama WM, Hansen TH, Fremont DH, PLoS Biol. 2012 Nov;10(11):e1001432. doi: 10.1371/journal.pbio.1001432. Epub 2012, Nov 27. PMID: 23209377 |
This OCA 
Structure page
uses Jmol,
developed by the Jmol Development Team
(documentation).