Figure 3From: The DNA relaxation activity and covalent complex accumulation of Mycobacterium tuberculosis topoisomerase I can be assayed in Escherichia coli: application for identification of potential FRET-dye labeling sitesComplementation assay of E. coli AS17 by pLIC-MTOP. encoding wild-type MtTOP1 (W), and mutants MtTOP1-Y342A (Y) and MtTOP1-K524C (K). V: LIC vectorBack to article page