Discovery of cryptic polyketide metabolites from dermatophytes using heterologous expression in Aspergillus nidulans.

Discovery of cryptic polyketide metabolites from dermatophytes using heterologous expression in Aspergillus nidulans.
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DOI:
10.1021/sb400048b
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发表时间:
2013-11-15
影响因子:
4.7
通讯作者:
Tang, Yi
Tang, Yi
中科院分区:
生物学2区
文献类型:
--
作者:
Yin, Wen-Bing;Chooi, Yit Heng;Smith, Adam R.;Cacho, Ralph A.;Hu, Youcai;White, Theodore C.;Tang, Yi

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属于毛癣菌属和节皮菌属的皮肤真菌引起人类和动物的皮肤感染。从基因组测序数据,我们挖掘了一个保守的基因簇皮肤真菌同源的一个产生免疫抑制聚酮烟曲霉。利用酵母中基于重组的克隆策略,我们构建了编码隐蔽簇的真菌异源表达载体。当整合到模型构巢曲霉宿主中时,形成了结构上相关的化合物奈洛托菌素B,表明该化合物在这些菌株的发病机制中可能发挥作用。
Dermatophytes belonging to the Trichophyton and Arthroderma genera cause skin infections in humans and animals. From genome sequencing data, we mined a conserved gene cluster among dermatophytes that are homologous to one that produces an immunosuppressive polyketide in Aspergillus fumigatus. Using a recombination-based cloning strategy in yeast, we constructed fungal heterologous expression vectors that encode the cryptic clusters. When integrated into the model Aspergillus nidulans host, a structurally related compound neosartoricin B was formed, suggesting a possible role of this compound in the pathogenesis of these strains.
毛磷脂和相关皮肤植物的比较基因组分析揭示了参与感染的候选基因。
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