Fig. 3From: Soluble expression of recombinant active cellulase in E.coli using B.subtilis (natto strain) cellulase geneScreening of recombinants by colony PCR on 1% agarose gel. Lane 1, positive control (amplicon from genomic DNA); lane 2-6, colony PCR products; lane 6, size of amplicon matching positive control (pET21a-cellulase recombinant); lane 7, colony carrying pET vector without gene (negative control)Back to article page