The invention discloses a method for performing
gene editing in
amycolatopsis orientalis. The method comprises the following steps: (1) constructing upstream and downstream homologous arm fragments nrps8-arm-A and nrps8-arm-Z of a
target gene nrps8 sequence for
DNA repair after knockout; (2) constructing
a DNA (
Deoxyribose Nucleic Acid) recombinant fragment gDNA-nrps8 capable of coding the sgRNA; (3) constructing a
CRISPR (clustered regularly interspaced short palindromic repeats) / Cas9 editing
plasmid pLYCS01; and (4) electrically transforming the pLYCS01 and the gDNA (deoxyribonucleic acid)-nrps8 into the A.keratiniphila
cell, so as to obtain the A.keratiniphila
cell. The invention also discloses an application of the nrps8
gene of the A. keratiniphila as a
gene knockout target of
CRISPR / Cas9 (clustered regularly interspaced short palindromic repeats /
CRISPR associated
protein 9) in the preparation of
vancomycin.