2IGF:
reference: Crystal structures of an antibody to a peptide and its complex with peptide antigen at 2.8 A., Stanfield RL, Fieser TM, Lerner RA, Wilson IA, Science 1990 May 11;248(4956):712-9. PMID: 2333521

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