>|synthetic antigen binding fragment ax17(sAB ax17) SDIQMTQSPSSLSASVGDRVTITCRASQSVSSAVAWYQQKPGKAPKLLIYSASSLYSGVPSRFSGSRSGTDFTLTISSLQPEDFATYYCQQ SSSSLI TFGQGTKVEIKRTVAAPSVFIFPPSDSQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGECEISEVQLVESGGGLVQPGGSLRLSCAASGFN FSSSSI HWVRQAPGKGLEWVA SIYSYYGSTS YADSVKGRFTISADTSKNTAYLQMNSLRAEDTAVYYCAR STFQWYPYYYSYQRGYKAI DYWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPKSCDKTHT