1QSE:
reference: Four A6-TCR/peptide/HLA-A2 structures that generate very different T cell signals are nearly identical., Ding YH, Baker BM, Garboczi DN, Biddison WE, Wiley DC, Immunity 1999 Jul;11(1):45-56. PMID: 10435578

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