>3u7s_B mol:protein length:99 Pol polyproteinPQITLWQRPLVVVKVGGQLMEALLDTGADDTIFEEMNLPGRWTPKMIGGIGGFLNVRQYDQVPIEICGHKVVSTVLIGPTPLNVIGRNVMTQIGCTLNF