https://www.ncbi.nlm.nih.gov/Structure/pdb/1FPT
1FPT: THREE-DIMENSIONAL STRUCTURE OF THE COMPLEX BETWEEN THE FAB FRAGMENT OF AN NEUTRALIZING...
FAB FRAGMENT OF AN NEUTRALIZING ANTIBODY FOR TYPE 1 POLIOVIRUSIGG2A-KAPPA C3 FAB (HEAVY CHAIN)IGG2A-KAPPA C3 FAB (LIGHT CHAIN)
three dimensionalof the