>6d7u_A mol:protein length:316 Hemagglutinin HA1 chainDKICLGHHAVSNGTKVNTLTERGVEVVNATETVERTNTPRICSKGKRTVDLGQCGLLGTITGPPQCDQFLEFSADLIIERREGSDVCYPGKFVNEEALRQILRESGGIDKEPMGFTYNGIRTNGATSACRRSGSSFYAEMKWLLSNTDNAAFPQMTKSYKNTRESPAIIVWGIHHSVSTAEQTKLYGSGNKLVTVGSSNYQQSFVPSPGARPQVNGQSGRIDFHWLILNPNDTVTFSFNGAFIAPDRASFLRGKSMGIQSRVQVDANCEGDCYHSGGTIISNLPFQNIDSRAVGKCPRYVKQRSLLLATGMKNVPE