>4k94_L mol:protein length:226 Fab19 heavy chain DIQMTQSPSSLSASVGDRVTITCRASQSVSSAVAWYQQKPGKAPKLLIYSASSLYSGVP SRFSGSRSGTDFTLTISSLQPEDFATYYCQQWAVHSLITFGQGTKVEIKRTVAAPSVFI FPPSDSQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLS STLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGECGGSDYKDDDDK