Methods for in vitro joining and combinatorial assembly of...

C - Chemistry – Metallurgy – 12 – P

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C12P 19/34 (2006.01) C12N 15/09 (2006.01) C12Q 1/68 (2006.01) C40B 50/06 (2006.01)

Patent

CA 2715586

The present invention relates to methods of joining two or more double- stranded (ds) or single- stranded (ss) DNA molecules of interest in vitro, wherein the distal region of the first DNA molecule and the proximal region of the second DNA molecule of each pair share a region of sequence identity. The method allows the joining of a large number of DNA fragments, in a predetermined order and orientation, without the use of restriction enzymes. It can be used, e.g., to join synthetically produced sub-fragments of a gene or genome of interest. Kits for performing the method are also disclosed. The methods of joining DNA molecules may be used to generate combinatorial libraries useful to generate, for example, optimal protein expression through codon optimization, gene optimization, and pathway optimization.

Linvention concerne des procédés de jonction de deux molécules dADN double brin (ds) ou simple brin (ss) dintérêt ou plus in vitro, la région distale de la première molécule dADN et la région proximale de la seconde molécule dADN de chaque paire partageant une région didentité de séquence. Le procédé permet la jonction dun grand nombre de fragments dADN, dans un ordre et une orientation prédéterminés, sans utiliser denzymes de restriction. Il peut être utilisé, par exemple, pour joindre des sous-fragments produits synthétiquement dun gène ou génome dintérêt. Des kits pour réaliser le procédé sont également révélés. Les procédés de jonction de molécules dADN peuvent être utilisés pour générer des bibliothèques combinatoires utiles pour générer, par exemple, lexpression de protéine optimale par optimisation de codon, optimisation de gène et optimisation de voie.

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