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Molecular Biology 2nd Edition Robert F. Weaver | ||||||
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Molecular Biology 2nd Edition Robert F. Weaver | ||||||
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Chapter 23
- Davies et al. have determined the three-dimensional structure of the bacterial transposon Tn5 transposase complexed to two Tn5 end DNAs. This mobile element moves by a non-replicative "cut and paste" mechanism, and the structure of the protein-DNA complex helps reveal how this transposition works. The enzyme is composed of two subunit; each subunit binds one of the transposon's ends, which brings the ends close together so the transposon can be inserted into a piece of target DNA. (Davies, D.R., I.Y. Goryshin, W.S. Reznikoff, and I. Rayment. 2000. Three-dimensional structure of the Tn5 synaptic complex transposition intermediate. Science 289:77-85)
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