{"title":"<i>laeA</i> Gene Introduction Strategy Enabling the Construction of a Prolific Fungal Secondary Metabolite Library.","authors":"Aoi Kimishima, Sota Honma, Satoshi Kato, Masako Honsho, Hiroki Kojima, Toshiyuki Tokiwa, Akihiro Sugawara, Kenichi Nonaka, Yasuko Araki, Tadashi Takahashi, Kotaro Ito, Yukihiro Asami","doi":"10.1021/acs.jnatprod.4c01317","DOIUrl":null,"url":null,"abstract":"<p><p>LaeA is a putative nuclear methyltransferase protein that epigenetically influences secondary metabolite production in fungi. LaeA has drawn attention as one of the promising approaches to activate fungal chemical production, and the <i>laeA</i> gene has been introduced into some fungal strains with the aim of producing secondary metabolic changes mainly based on the evaluation of mycotoxicity. However, these studies were applied for limited fungal species, and its utility and versatility for broad fungal species remained unclear. In this study, 47 strains were selected composed of three different genera, <i>Pochonia</i> spp., <i>Gamszarea kalimantanensis</i>, and <i>Lecanicillium</i> spp., which have never been modified with the <i>laeA</i> gene. We obtained a total of 125 mutants with <i>laeA</i> genes for our fungal strain library. The chemical productivity and the biological activity of the library were analyzed, and two natural products, radicicol (<b>1</b>) and sch210972 (<b>2</b>), were isolated in more than 10-fold the yield of the parent strains.</p>","PeriodicalId":47,"journal":{"name":"Journal of Natural Products ","volume":" ","pages":""},"PeriodicalIF":3.3000,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Natural Products ","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1021/acs.jnatprod.4c01317","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MEDICINAL","Score":null,"Total":0}
引用次数: 0
Abstract
LaeA is a putative nuclear methyltransferase protein that epigenetically influences secondary metabolite production in fungi. LaeA has drawn attention as one of the promising approaches to activate fungal chemical production, and the laeA gene has been introduced into some fungal strains with the aim of producing secondary metabolic changes mainly based on the evaluation of mycotoxicity. However, these studies were applied for limited fungal species, and its utility and versatility for broad fungal species remained unclear. In this study, 47 strains were selected composed of three different genera, Pochonia spp., Gamszarea kalimantanensis, and Lecanicillium spp., which have never been modified with the laeA gene. We obtained a total of 125 mutants with laeA genes for our fungal strain library. The chemical productivity and the biological activity of the library were analyzed, and two natural products, radicicol (1) and sch210972 (2), were isolated in more than 10-fold the yield of the parent strains.
期刊介绍:
The Journal of Natural Products invites and publishes papers that make substantial and scholarly contributions to the area of natural products research. Contributions may relate to the chemistry and/or biochemistry of naturally occurring compounds or the biology of living systems from which they are obtained.
Specifically, there may be articles that describe secondary metabolites of microorganisms, including antibiotics and mycotoxins; physiologically active compounds from terrestrial and marine plants and animals; biochemical studies, including biosynthesis and microbiological transformations; fermentation and plant tissue culture; the isolation, structure elucidation, and chemical synthesis of novel compounds from nature; and the pharmacology of compounds of natural origin.
When new compounds are reported, manuscripts describing their biological activity are much preferred.
Specifically, there may be articles that describe secondary metabolites of microorganisms, including antibiotics and mycotoxins; physiologically active compounds from terrestrial and marine plants and animals; biochemical studies, including biosynthesis and microbiological transformations; fermentation and plant tissue culture; the isolation, structure elucidation, and chemical synthesis of novel compounds from nature; and the pharmacology of compounds of natural origin.