Presence, Mode of Action, and Application of Pathway Specific Transcription Factors in Aspergillus Biosynthetic Gene Clusters.

Presence, Mode of Action, and Application of Pathway Specific Transcription Factors in Aspergillus Biosynthetic Gene Clusters.
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DOI:
10.3390/ijms22168709
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发表时间:
2021-08-13
影响因子:
5.6
通讯作者:
Wang P
Wang P
中科院分区:
生物学2区
文献类型:
--
作者:
Wang W;Yu Y;Keller NP;Wang P

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真菌次级代谢产物是著名的毒素,也是抗生素、降胆固醇药物和免疫抑制剂的宝贵来源;因此,人们付出了巨大的努力来了解这些化合物是如何被遗传调控的。编码合成次级代谢物所需的酶的基因排列在生物合成基因簇(BGC)中。通常,BGC含有途径特异性转录因子(PSTF),这是关闭或启动BGC产物生产的有价值的工具。在这篇综述中,我们通过检查已充分研究的真菌物种构巢曲霉和烟曲霉中超过40种特征化的BGC,对PSTF进行了深入的了解。在此,我们发现BGC大小是PSTF存在的预测因子,考虑PSTF的数量和相对位置关于调节的簇,讨论PSTF的功能和进化,并提出潜在BGC的通路特异性激活的应用策略。
Fungal secondary metabolites are renowned toxins as well as valuable sources of antibiotics, cholesterol-lowering drugs, and immunosuppressants; hence, great efforts were levied to understand how these compounds are genetically regulated. The genes encoding for the enzymes required for synthesizing secondary metabolites are arranged in biosynthetic gene clusters (BGCs). Often, BGCs contain a pathway specific transcription factor (PSTF), a valuable tool in shutting down or turning up production of the BGC product. In this review, we present an in-depth view of PSTFs by examining over 40 characterized BGCs in the well-studied fungal species Aspergillus nidulans and Aspergillus fumigatus. Herein, we find BGC size is a predictor for presence of PSTFs, consider the number and the relative location of PSTF in regard to the cluster(s) regulated, discuss the function and the evolution of PSTFs, and present application strategies for pathway specific activation of cryptic BGCs.
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