plasmid
Figure 8: Electrophoretic mobility of plasmid DNA containing partial sequences of P22 ERM gene of TBSV Egh from E.coli strain TOP10 F' transformants on 1% agarose gel stained with ethidium bromide. Lane M: Molecular weight standard 1 Kb plus DNA ladder (Sib Enzyme); Lane1: circular pCR 2.1-TOPO plasmid vector; Lane2: P22 EM recombinant plasmid.