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Western blot analysis of SARS-CoV-2 PsIV after two-step chromatographic purification using Cellufine MAX-DexS-VirS column and a Capto Core 700 column. Presence of SARS-CoV-2 spike glycoprotein (S), nucleocapsid protein (N) and membrane protein (M) was confirmed by binding to the respective antibodies. Intensities of S, N and M bands relative to the 80 KDa molecular weight marker intensity are provided in the Supplementary Materials.
