>4xnq_H mol:protein length:227 H5.3 heavy chainQVQLQESGPGLVKPSGTVSLTCAVSGGSISSSYWWSWVRQPPGKGLEWIGEIYHSGNTNYNPSLKSRVTISVDKSKNLFSLKLSSVTAADTAVYYCARVALFDILTGGWFDPWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVELKTPT