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在有丝状土壤真菌Trichoderma reesei中感知N-乙糖胺
Sadia Fida Ullah1, Mislav Oreb2, Eckhard Boles2
1Division of Glycoscience, Department of Chemistry, KTH Royal Institute of Technology, AlbaNova University Centre, Stockholm, Sweden.
The FEBS journal
|February 15, 2025
概括
在像Trichoderma reesei这样的丝状真菌中感知N-乙糖胺 (GlcNAc) 影响基因表达和新陈代谢. 确定了关键的调节器和一个传送器,揭示了 GlcNAccc.
科学领域:
- 分子生物学分子生物学
- 菌类学 菌类学是指菌类学.
- 生物化学 生物化学
背景情况:
- N-乙葡萄糖胺 (GlcNAc) 是各种生物体信号通路中的关键分子.
- GlcNAc影响细菌土壤群落和植物生长,但其在线状土壤真菌中的作用尚未被探索.
- 特里科德尔马·里塞 (Trichoderma reesei) 是一种具有生态意义的模范丝状真菌.
研究的目的:
- 调查N-乙葡萄糖胺 (GlcNAc) 感应在线状土壤真菌Trichoderma reesei中的作用和调节网络.
- 确定参与T. reesei. GlcNAc代谢和信号传导的关键调节器和载体.
- 了解外部GlcNAc如何影响T. reesei.中的基因表达和细胞通路.
主要方法:
- 在T. reesei.中受到GlcNAc影响的约2100个基因的基因表达分析.
- 关键调节器 (RON1,NGS1) 和参与 GlcNAc 传感的传送器 (NGT1) 的识别和描述.
- 在GlcNAc传感器NGS1.1的in silico结构建模.
- 对删除突变 (ngt1) 的分析,以确认GlcNAc吸收的必要性.
主要成果:
- GlcNAc显著影响T. reesei中的基因表达,特别是影响碳水化合物,氨基酸和二次代谢.
- 调节器RON1和NGS1,以及输送器NGT1,对于GlcNAc介导的基因调节至关重要.
- GlcNAc必须通过NGT1进入细胞以激活代谢基因表达.
- 外部GlcNAc诱导T. reesei的防御和致病性途径,与二形酵母不同.
结论:
- 已经提出了一个围绕RON1,NGS1和NGT1的围绕丝状土壤真菌的GlcNAc传感的新型调节网络.
- GlcNAc在调节真菌代谢和T. reesei.潜在的毒性方面发挥着重要作用.
- 这些发现突出了菌物种间GlcNAc代谢的保存机制.
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