>8r1d_F mol:protein length:121 SD1-3 Fab Heavy ChainQVQLVESGGGLVQPGGSLRLSCTASGVTFSSYAMSWVRQAPGKGLEWVSGISGSGDSTYYADSVKGRFTISRDNSKNTLYLQMNSLRVEDTAVYYCATHYCSGGSCPFDYWGQGTLVTVSS