>6J6Y_1|Chains A, D|Fibroblast growth factor receptor 4|Homo sapiens (9606) SYPQQAPYWTHPQRMEKKLHAVPAGNTVKFRCPAAGNPTPTIRWLKDGQAFHGENRIGGIRLRHQHWSLVMESVVPSDRGTYTCLVENAVGSIRYNYLLDVLER >6J6Y_2|Chains B, E|Fab Heavy chain|synthetic construct (32630) KLAATMKHLWFFLLLVAAPRWVLSEVQLLESGGGLVQPGGSLRLSCAASGFTFSDYYMSWIRQAPGKGLEWVSTISGSGGSTYYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYYCARLTAYGHVDSWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTH >6J6Y_3|Chains C, F|Fab light chain|synthetic construct (32630) KLAATMVLQTQVFISLLLWISGAYGQSVLTQPPSASGTPGQRVTISCSGSSSNIGTNTVNWYQQLPGTAPKLLIYRNYQRPSGVPDRFSGSKSGTSASLAISGLRSEDEADYYCAAWDDSLSGPHVVFGGGTKLTVLGQPKAAPSVTLFPPSSEELQANKATLVCLISDFYPGAVTVAWKADSSPVKAGVETTTPSKQSNNKYAASSYLSLTPEQWKSHRSYSCQVTHEGSTVEKTVAPTECS