Histone lysine methyltransferases MpDot1 and MpSet9 are involved in the production of lovastatin and MonAzPs by histone crosstalk modification
文献类型： 外文期刊
作者： Gong, Yunxia 1 ; Li, Shengfa 1 ; Zhou, Youxiang 2 ; Chen, Fusheng 1 ; Shao, Yanchun 1 ;
作者机构： 1.Huazhong Agr Univ, Coll Food Sci & Technol, Wuhan 430070, Peoples R China
2.Hubei Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Hubei Key Lab Nutr Qual & Safety Agroprod, Wuhan 430064, Peoples R China
3.Huazhong Agr Univ, Hubei Int Sci & Technol Cooperat Base Tradit Ferme, Wuhan 430070, Peoples R China
关键词： Histone methylation; Histone crosstalk; Transcriptional regulation; Lovastatin; Monascus -type azaphilone pigments
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）
ISSN： 0141-8130
年卷期： 2024 年 255 卷
页码：
收录情况： SCI
摘要： Increasing data suggested that histone methylation modification plays an important role in regulating biosynthesis of secondary metabolites (SMs). Monascus spp. have been applied to produce hypolipidemic drug lovastatin (also called monacolin K, MK) and edible Monascus-type azaphilone pigments (MonAzPs). However, little is known about how histone methylation regulates MK and MonAzPs. In this study, we constructed H3K9 methyltransferase deletion strain Delta MpDot1 and H4K20 methyltransferase deletion strain Delta MpSet9 using Mon-ascus pilosus MS-1 as the parent. The result showed that deletion of MpDot1 reduced the production of MK and MonAzPs, and deletion of MpSet9 increased MonAzPs production. Real-time quantitative PCR (RT-qPCR) showed inactivation of mpdot1 and mpset9 disturbed the expression of genes responsible for the biosynthesis of MK and MonAzPs. Western blot suggested that deletion of MpDot1 reduced H3K79me and H4K16ac, and deletion of MpSet9 decreased H4K20me3 and increased H4pan acetylation. Chromatin immunoprecipitation coupled with quantitative PCR (ChIP-qPCR) showed Delta MpDot1 strain and Delta MpSet9 strain reduced the enrichment of H3K79me2 and H4K20me3 in the promoter regions of key genes for MK and MonAzPs biosynthesis, respectively. These results suggested that MpDot1 and MpSet9 affected the synthesis of SMs by regulating gene transcription and histone crosstalk, providing alternative approach for regulation of lovastatin and MonAzPs.
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