>8bec_A mol:protein length:251 pT1375 single-chain FvEVQLVESGGGLIQPGGSLRLSCAASGLIVSRNYMNWVRQAPGKGLEWVSVLYSGGSTFYADSVKGRFTISRDNSKNTLYLQMNSLRAEDTAVYFCVRDLDVKGAFDIWGQGTMVSVSSGTGGSGGGGSGGGGSGGGASEIVLTQSPGTLSLSPGERATLSCRASQSVSSSYLAWYQQKPGQAPRLLIYGASSRATGIPDRFSGSVSGTDFTLTISRLEPEDFAVYYCQQYGSSPITFGQGTRLEIKDDDDK