to test cya expression during cell elongation , we constructed a plasmid ( plcr1 ) in which the lacuv5 promoter operator was fused to the structural gene of cya and investigated the effect of cya expression by isopropyl-beta-d-thiogalactopyranoside ( iptg ) on the cell division of cells containing plcr1 .
C0086860
operator
C0007634
cells