>6tou_A mol:protein length:261 Single-chain FvQVQLQESGPGLVKPSQTLSLTCTVSGGSFSSGSYSWNWIRQHPGKGLEWIGYIYYSGSTYYNPSLKSRVTMSVHTSKNQFSLKLNSITAADTAVYYCARGTYSDFWSGSPLDYWGQGTLVTVSSGGGGSGGGGSGGGGSGGGGGDIQMTQSPSSLSASVGDRVTITCRASQGISNYLAWFQQKPGKAPKSLIYAASSLQSGVPSRFSGSGSGTDFTLTINSLQPEDFVTYFCQQYDTYPLTFGGGTKVEIKGGWSHPQFEK