Molecular biology: DNA gyrations in reverse.
D004264:DNA Topoisomerases, Type I; D004250:DNA Topoisomerases, Type II / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology; D006090:Gram-Negative Bacteria / Q000201:enzymology
C041813:DNA reverse gyrase; D004264:DNA Topoisomerases, Type I; D004250:DNA Topoisomerases, Type II