3ijh C 2.1 BS01 KO2 C 1 S91 N92 R95 S96 N97 R100 Kd=100uM 19767317 214 IVMTQSPSSLAVSAGEKVTMSCKSSQSLLNSRTRKNYLAWYQQKPGQSPKLLIYWASTRESGVPDRFTGSGSGTDFTLTISSVQAEDLAVYYCKQSNNLRTFGGGTKLEIKRADAAPTVSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNE 3ijh D 2.1 BS01 KO2 C 1 Y33 R52 K53 I96 P98 E100E Y33 R52 K56 I102 P104 E111 19767317 214 EVMLVESGGGLVQPGNSLRLSCATSGFTFTDYYMSWVRQPPGKALEWLGFIRNKAKGYTTEYSASVKGRFTISRDNSQSILYLQMNTLRAEDSATYYCARDISPSYGVYYEGFAYWGQGTLVTVSAATTTAPSVYPLVPGGSSVTLGCLVKGYFPEPVTVKWNYGALSSGVRTVSSVLQSGFYSLSSLVTVPSSTWPSQTVICNVAHPASKTELIKRIEPR