The Paris protocol ...
This work is in progress, based on pET21a inserting between NdeI and NotI sites.
The protocol being used is essentially as in Elledge, 2007, with RecA.
Li M.Z. & Elledge S. J. Harnessing homologous recombination in vitro to generate recombinant DNA via SLIC. Nature Methods 4, 251 - 256 (2007) doi:10.1038/nmeth1010