>4r7n_E mol:protein length:225 Fab C2E3 Heavy chainQVQLQESGPGLVKPSDTLSLTCAVSGYPIRFGYSWHWIRQPPGKGLEWMGYIHYSGYTDFNPSLKTRITISRDTSKNQFSLKLSSVTAVDTAVYYCARKDSGNYFPYWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPKSCDKTH