>1q9w_B mol:protein length:226 S45-18 Fab (IgG1k) heavy chainEVILVESGGGLVQPGGSLRLSCSTSGFTFTDYYMSWVRQPPGKALEWLGFIRNKPKGYTTEYSASVKGRFTISRDNSQSILYLQMNTLRAEDSATYYCVRDIYSFGSRDGMDYWGQGTSVTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPRDC