1DL7:
reference: The structural basis of repertoire shift in an immune response to phosphocholine., Brown M, Schumacher MA, Wiens GD, Brennan RG, Rittenberg MB, J Exp Med 2000 Jun 19;191(12):2101-12. PMID: 10859335

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