The cyclopiazonic acid (CPA) nonproducing strain, Aspergillus oryzae RIB 40, does not biosynthesize cycloacetoacetyl- L-tryptophan (cAATrp) due to a truncation in the responsible PKS-NRPS gene. We found that RIB 40 converted cAATrp to 2-oxocyclopiazonic acid, the final product of CPA biosynthesis in A. oryzae. This indicates that the CPA biosynthesis gene cluster, except for the PKS-NRPS gene, is functional in RIB 40.
CITATION STYLE
Shinohara, Y., Tokuoka, M., & Koyama, Y. (2011). Functional analysis of the cyclopiazonic acid biosynthesis gene cluster in Aspergillus oryzae RIB 40. Bioscience, Biotechnology and Biochemistry, 75(11), 2249–2252. https://doi.org/10.1271/bbb.110467
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