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. Author manuscript; available in PMC: 2016 Apr 25.
Published in final edited form as: Mol Microbiol. 2015 Nov 13;99(3):484–496. doi: 10.1111/mmi.13241

Fig. 2. ct643 encodes a functional topoisomerase I.

Fig. 2

A. SDS PAGE gel electrophoresis of purified CT643 (TopA) stained with Coomassie brilliant blue. The size of protein markers (M) in kDa is indicated to the left.

B. CT643 relaxes supercoiled DNA. Supercoiled plasmid was incubated with increasing concentrations of CT643.