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by maimaiti2008
Thu Jun 13, 2013 9:06 am
Forum: Molecular Biology
Topic: Question about Type II Topoisomerase
Replies: 0
Views: 1608

Question about Type II Topoisomerase

Hi, We have learnt that type II topoisomerase can relax the positive supercoil by cutting off two strands of one DNA molecule. However, in contrast to type I topoisomerase, type II topoisomerase does not reduce the number of twist. So after type II topoismerase functions, only the number of writhe d...
by maimaiti2008
Mon May 06, 2013 8:04 am
Forum: Molecular Biology
Topic: Why is ATP rather than GTP, CTP or TTP the energy currency?
Replies: 6
Views: 25231

Why is ATP rather than GTP, CTP or TTP the energy currency?

Why is ATP rather than GTP, CTP or TTP used as the energy currency?