1MUJ:
reference: Crystal structure of MHC class II I-Ab in complex with a human CLIP peptide: prediction of an I-Ab peptide-binding motif., Zhu Y, Rudensky AY, Corper AL, Teyton L, Wilson IA, J Mol Biol 2003 Feb 28;326(4):1157-74. PMID: 12589760

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