Expression plasmid, encodes SARS-CoV-2 orf7b under the CMV promoter, C-terminal tagged with 3xFLAG, separated by a flexible linker (GGGGS). Designed as control plasmid for endogenously FLAG-tagged SARS-CoV-2 (available as plasmid 007N-06343 or recombinant virus 007V-06298).