article 8 DNA Topoisomerases, Type II 6 DNA, Superhelical 6 nonhuman 6 Bacillus subtilis 4 Bacteria (microorganisms) 4 Culture Media 4 DNA supercoiling 4 DNA, Bacterial 4 Novobiocin 4 Support, Non-U.S. Gov't 4 bacillus subtilis 4 bacterial growth 4 dna supercoiling 4 enzyme activity 4 novobiocin 4 osmoregulation 4 priority journal 4 Animal 2 Anti-Bacterial Agents 2 Bacterial Proteins 2 Cells, Cultured 2 Chloroquine 2 Chromatin 2 DNA 2 DNA Gyrase 2 DNA Topoisomerases, Type I 2 DNA topoisomerase 2 DNA topoisomerase (ATP hydrolysing) 2 Fatty Acids, Unsaturated 2