>2B0S_3|Chain C[auth P]|MN peptide of Exterior membrane glycoprotein GP120|null KRKRIHIGPGRAFYTTKNA >2B0S_1|Chain A[auth L]|Fab 2219, light chain|Homo sapiens (9606) QSVLTQPPSASGTPGQRISISCSGTSSNVENNYVYWYQHLPGTAPKLLIYRNDHRSSGIPDRFSASKSGTSASLAISGLRPEDEGDYYCAAWDDSRGGPDWVFGGGTKLTVLAQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHKSYSCQVTHEGSTVEKTVAPT >2B0S_2|Chain B[auth H]|Fab 2219, heavy chain|Homo sapiens (9606) EIQLEQSGAEVKKSGESLKISCQTSGYSFSDYWIGWVRQMPGKGLEWMGIFYPGDSDSRYSPSFEGQVTMSADRSTNTAHLQWSSLKPSDTALYYCARLGGDYEDSGADAFDFWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKS