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SDS-PAGE analysis of Merkel cell polyomavirus, BK virus, and JC virus VP1 virus-like particles. Five-microgram samples of gradient-purified MCPyV (MC), BKPyV (BK), or JCPyV (JC) VP1 virus-like particles produced in insect cells from recombinant baculoviruses were subjected to SDS-PAGE. Molecular weight markers (MW) are shown in lane 1, with the sizes of markers (103) indicated to the left of the gel.
