2IMM:
reference: Refined crystal structure of a recombinant immunoglobulin domain and a complementarity-determining region 1-grafted mutant., Steipe B, Pluckthun A, Huber R, J Mol Biol 1992 Jun 5;225(3):739-53. PMID: 1602480

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