Biosynthesis gene cluster of kosinostatin and application thereof
2013
The invention relates to a biosynthesis gene cluster of kosinostatin, and in particular relates to cloning, sequencing, analysis, functional study and application of the biosynthesis gene cluster of the kosinostatin, which is an antharcycline antibiotic with antitumor activity and generated from micromonospora sp.TP-A0468. The whole gene cluster comprises 55 genes in all, that is, 17 II-type polyketone synthetase (PKS) related genes, 8 non-ribosome polypeptide synthetase (NRPS) related genes, 9 glycosyl synthetic related genes, 6 special post-modifying genes, 7 antibiotic genes, 5 conditioning genes and 3 genes without definite functions. Through the genetic manipulation of the biosynthesis genes, the biosynthesis of kosinostatin can be blocked, the output is changed, or novel compounds are produced. The gene cluster can be applied to gene engineering, protein expression, enzymatic catalytic reaction and the like of antharcycline compounds, and can also be used for finding and discovering compounds, genes or proteins for medicines, industry or agriculture.
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