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Revision as of 21:37, 26 October 2017
Project Description
What is site-specific recombination and why does it matter?
Site-specific recombination (SSR), found mostly in bacteria, viruses and transposons (the so-called parasitic DNA), is one of the many mechanisms which life utilises to perform genetic recombination (Leach, 1996). SSR generally consists of a recombinase protein that mediates recombination, and two DNA elements, called target sites, that are similar or identical to each other that the recombinase recognises (Grindley et al., 2006). Depending on the orientation and the location of the target sites, SSR can perform DNA integration, excision, and exchange. While bacteria use SSR to regulate gene expression and separate two chromosomes during cell division, viruses and transposons use it to mediate chromosomal integration into the bacterial chromosome, hijacking the cellular machinery to replicate themselves.
With the ability to modify DNA in a precise manner, SSR has been used in various fields of research and industrial applications where genetic engineering is required. Click to see the applications of SSR:
