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A DNA topoisomerase IB in Thaumarchaeota testifies for the presence of this enzyme in the last common ancestor of Archaea and Eucarya
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* Corresponding author: Céline Brochier-Armanet celine.brochier@ibsm.cnrs-mrs.fr
Biology Direct 2008, 3:54 doi:10.1186/1745-6150-3-54