>3k81_B mol:protein length:127 Single strand antibody VHH domainEVQPQESGGGLAQAGGSLRLSCVVSGITFASEAWGWYRRAPGKQRELIAAINNEGRTNYVDSVKGRFTVSRDNAKNVMYLQMNSLKPEDTAVYYCNANLQTGTLSGARLYWGQGTQVTVSSHHHHHH