Article
Identification and Engineering of Post-PKS Modification Bottlenecks for Ansamitocin P-3 Titer Improvement in Actinosynnema pretiosum subsp. pretiosum ATCC 31280.
Biotechnology journal - 1 Nov 2017
Ning Xinjuan, Wang Xinran, Wu Yuanting, Kang Qianjin, Bai Linquan
Abstract excerpt
The type-I polyketide ansamitocin P-3 (AP-3) is a potent antitumor agent. Its production is most likely hampered by the required multiple substrate supplies and complicated post-PKS modifications in Actinosynnema pretiosum subsp. pretiosum ATCC 31280. For titer improvement, gene ansa30, encoding for a glycosyltransferase competing for the N-demethyl-AP-3 (PND-3) intermediate for AP-3 biosynthesis, was initially...
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