>3u7s_A mol:protein length:99 Pol polyproteinPQITLWQRPLVVVKVGGQLMEALLDTGADDTIFEEMNLPGRWTPKMIGGIGGFLNVRQYDQVPIEICGHKVVSTVLIGPTPLNVIGRNVMTQIGCTLNF