| abstract |
The present invention provides a method for producing a modified compound, including the following steps:n (1) a step of cleaving in vitro using a CRISPR/Cas9 system, a target site in a gene cluster involved in the biosynthesis of a compound, (2) a step of connecting using Gibson assembly in vitro the gene cluster cleaved in step (1) and a polynucleotide for modification, and (3) a step of expressing the modified gene cluster obtained in step (2) in a microorganism expression system. |