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Expression of SARS-CoV M protein in mammalian cells. Immunofluorescence of HEK-293 cells transfected with the pVAX-M plasmid (indicated as M) or mock-transfected [pVAX empty vector, indicated as (-) CTR]. Immunofluorescence was performed with the mouse anti-M pAb and nuclei were counter-stained with DAPI (100x objective, ZEISS ACHROSTIGMAT 100x/1,25 oil). Scale Bar = 5 μm.
