1AQK:
reference: Three-dimensional structure of a human Fab with high affinity for tetanus toxoid., Faber C, Shan L, Fan Z, Guddat LW, Furebring C, Ohlin M, Borrebaeck CA, Edmundson AB, Immunotechnology 1998 Jan;3(4):253-70. PMID: 9530559

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