>6x3s_J mol:protein length:454 IgG2b Fab Heavy ChainEVQLQQSGAELVKPGASVKLSCTASGFNIKDTYMYWVKQRPEQGLEWIGRIDPANGDTKYDPKFQGKATITTDTFSNTAYLQLSSLTSEDTAVYYCARKGLRWAMDYWGQGTSVTVSTAKTTPPSVYPLAPGCGDTTGSSVTLGCLVKGYFPESVTVTWNSGSLSSSVHTFPALLQSGLYTMSSSVTVPSSTWPSQTVTCSVAHPASSTTVDKKLEPSGPISTINPCPPCKECHKCPAPNLEGGPSVFIFPPNIKDVLMISLTPKVTCVVVDVSEDDPDVQISWFVNNVEVHTAQTQTHREDYNSTIRVVSTLPIQHQDWMSGKEFKCKVNNKDLPSPIERTISKIKGLVRAPQVYILPPPAEQLSRKDVSLTCLVVGFNPGDISVEWTSNGHTEENYKDTAPVLDSDGSYFIYSKLNMKTSKWEKTDSFSCNVRHEGLKNYYLKKTISRSPGK