T.-S. Hsieh

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The amino-terminus of eucaryotic DNA topoisomerase I and the carboxy-terminus of eucaryotic DNA topoisomerase II contain sequences that are enriched in charged amino acid residues, hyper-sensitive to protease digestion, not required for the in vitro topoisomerase activities, able to tolerate insertion and deletion mutations, and thus may have a disordered(More)
Substituting Lys359 with either Gln or Glu in the highly conserved QTK-loop in the DNA gyrase B protein homologous domain of Drosophila topoisomerase II inactivates its catalytic activities. Although strand passage and DNA-dependent ATPase activities are affected in these mutant proteins, their DNA cleavage activity is comparable with the wild-type enzyme(More)
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