>5fcu_L mol:protein length:216 JR4 FAB LIGHT CHAIN
QSVLTQPPSVSAAPGQKVTISCSGSSSNIGRSYVSWYQQVPGAAPKLLIYDTNKRPSGVSDRFSGSKSGSSASLAITGLQTGDEADYYCGAWDGSLNVHIFGSGTKLTVLGQPKASPLVTLFPPSSEELQANKATLVCLISDFYPGVVKVAWKADGNSVNTGVETTTPSKQSNNKYAASSYLSLTSDQWKSHKSYSCQVTHEGSTVEKTVAPTECS