Rapid metabolic pathway assembly and modification using serine integrase site-specific recombination

Synthetic biology requires effective methods to assemble DNA parts into devices and to modify these devices once made. Here we demonstrate a convenient rapid procedure for DNA fragment assembly using site-specific recombination by C31 integrase. Using six orthogonal attP/attB recombination site pair...

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Published inNucleic acids research Vol. 42; no. 4; p. e23
Main Authors Colloms, Sean D, Merrick, Christine A, Olorunniji, Femi J, Stark, W Marshall, Smith, Margaret C M, Osbourn, Anne, Keasling, Jay D, Rosser, Susan J
Format Journal Article
LanguageEnglish
Published England Oxford University Press 01.02.2014
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Summary:Synthetic biology requires effective methods to assemble DNA parts into devices and to modify these devices once made. Here we demonstrate a convenient rapid procedure for DNA fragment assembly using site-specific recombination by C31 integrase. Using six orthogonal attP/attB recombination site pairs with different overlap sequences, we can assemble up to five DNA fragments in a defined order and insert them into a plasmid vector in a single recombination reaction. C31 integrase-mediated assembly is highly efficient, allowing production of large libraries suitable for combinatorial gene assembly strategies. The resultant assemblies contain arrays of DNA cassettes separated by recombination sites, which can be used to manipulate the assembly by further recombination. We illustrate the utility of these procedures to (i) assemble functional metabolic pathways containing three, four or five genes; (ii) optimize productivity of two model metabolic pathways by combinatorial assembly with randomization of gene order or ribosome binding site strength; and (iii) modify an assembled metabolic pathway by gene replacement or addition.
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AC02-05CH11231
USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
Present address: Susan J. Rosser, School of Biological Sciences, The University of Edinburgh, Darwin Building, King’s Buildings, Mayfield Road, Edinburgh EH9 3JR.
ISSN:0305-1048
1362-4962
DOI:10.1093/nar/gkt1101