Distribution of reverse gyrase in representative species of eubacteria and archaebacteria
- Collin, R.G.
- Morgan, Hugh W.
- Musgrave, D.R.
- Daniel, Roy M.
DOIAbstract
Reverse gyrase is a topoisomerase which positively supercoils closed circular plasmid DNA. Reverse gyrase activity is restricted to the thermoacidophilic group of archaebacteria. Thermophilic methanogens and eubacteria and all mesophilic organisms screened had no reverse gyrase activity. The result supports the deep phylogenetic divergence in archaebacterial evolution
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