Predicting Knot or Catenane Type of Site-Specific Recombination Products
site-specific recombination, DNA knots, serine recombinases, tyrosine recombinases, DNA topology
Site-specific recombination on supercoiled circular DNA yields a variety of knotted or catenated products. Here, we present a topological model of this process and characterize all possible products of the most common substrates: unknots, unlinks, and torus knots and catenanes. This model tightly prescribes the knot or catenane type of previously uncharacterized data. We also discuss how the model helps to distinguish products of distributive recombination and, in some cases, determine the order of processive recombination products.
© 2007 Elsevier B.V.
Dorothy Buck, Erica Flapan, Predicting Knot or Catenane Type of Site-Specific Recombination Products, Journal of Molecular Biology, Volume 374, Issue 5, 14 December 2007, Pages 1186-1199, ISSN 0022-2836, http://dx.doi.org/10.1016/j.jmb.2007.10.016. (http://www.sciencedirect.com/science/article/pii/S002228360701337X)