Abstract
Genetic engineering of cyanobacteria is currently limited to genomic integration via homologous recombination and RSF1010-based conjugative vector systems. Here, we introduce a rationally designed conjugative vector with two BioBrick-based cloning sites which enables facilitated and modular cloning. This streamlined vector is suitable for a variety of synthetic biology applications, such as expression of multiple enzymes from metabolic pathways for the production of biofuels or secondary metabolites, or screening of modular parts such as promoters, further facilitating applications to improve crop plants using synthetic biology. Finally, we present a general approach to cloning of constructs, as well as detailed protocols for conjugation and culturing of strains carrying said constructs.
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