>4c2i_L mol:protein length:239 LIGHT CHAIN FAB FRAGMENT OF ANTIBODY 1F4LATMAWMMLLLLTLITHCAGSWAQSVLTQPPSVSEAPRQRVTISCSGSSSNIGNNAVNWYQQFPGKAPKLLIYYDDLLPSGVSDRFSGSKSGTSASLAISGLQSEDEAYYYCAAWDDSLIGVVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS