>3csy_F mol:protein length:217 Fab KZ52 light chain ELVMTQSPDSLAVSLGERATINCKSSQSVLYSSNNKSYLAWYQQKPGQPPKLLIYWAST RESGVPDRFSGSGSGTDFTLTISSLQAEDVAVYYCQQYYSAPLTFGGGTKVEIKRTVAA PSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDS TYSLSSTLTLSKADYEKHKVYACEVTHQGLRSPVTKSFNR