pR6K-Apr-oriT-attp-phiC31 plasmid vector质粒载体 BioVector NTCC质粒载体菌种细胞基因保藏中心

pR6K-Apr-oriT-attp-phiC31 plasmid vector质粒载体

Full-length RecE and RecT from Rac prophage mediate highly efficient linear–linear homologous recombination that can be used to clone large DNA regions directly from genomic DNA into expression vectors, bypassing library construction and screening. Homologous recombination mediated by Redαβ from lambda phage has been widely used for recombinant DNA engineering. Here we present a protocol for direct cloning and engineering of biosynthetic gene clusters, large operons or single genes from genomic DNA using one Escherichia coli host that harbors both RecET and Redαβ systems. The pipeline uses standardized cassettes for horizontal gene transfer options, as well as vectors with different replication origins configured to minimize recombineering background through the use of selectively replicating templates or CcdB counterselection. These optimized reagents and protocols facilitate fast acquisition of transgenes from genomic DNA preparations, which are ready for heterologous expression within 1 week.

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