2CLR: Three Dimensional Structure Of A Peptide Extending Out One End Of A Class I Mhc Binding Site
reference: Three-dimensional structure of a peptide extending from one end of a class I MHC binding site., Collins EJ, Garboczi DN, Wiley DC, Nature 1994 Oct 13;371(6498):626-9. PMID: 7935798

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).