>1xgy_I mol:protein length:219 K42-41L Fab Heavy ChainQVQLQQSGPELVRPGASVKISCKASGYTFTDYYINWVKQRPGQGLEWIGWIFPRNGNTKYNEKFKGKATLTVDKSSSTAFMQLSSLTSEDSAVYFCATTVSYVMDYWGQGTTVTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPRDC