阿斯伯吉路斯里泽的核是通过自细胞形成和真空介导的降解进行的
Mau Hashimoto1, Satoshi Kimura2, Manabu Arioka3,4
1Department of Biotechnology, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-Ku, Tokyo, 113-8657, Japan.
Current microbiology
|August 20, 2024
概括
细胞核通过阿斯伯吉勒斯oryzae的核完全降解. 这一过程涉及自胞体的吞和真空体内的降解,通过研究特定的基因删除突变体来证实这一点.
科学领域:
- 细胞生物学 细胞生物学
- 菌类学 菌类学是指菌类学.
- 分子生物学分子生物学
背景情况:
- 自是一种细胞过程,用于降解受损组件.
- 核,通过自细胞核的降解,已在Aspergillus oryzae.观察到.
- 核吞没和核降解的确切机制尚未完全阐明.
研究的目的:
- 为了调查核是否作为一个整体在Aspergillus oryzae.在核过程中降解.
- 为了确定关键的蛋白质和途径,参与核的吞和降解.
主要方法:
- 产生没有Saccharomyces cerevisiae YPT7和ATG15.15的正统基因的Aspergillus oryzae突变体.
- 在饥饿条件下评估 histone H2B-EGFP 降解.
- 光和电子显微镜可用于可视化核和自体结构.
主要成果:
- 删除突变体 ΔAoypt7 和 ΔAoatg15 显示,组织蛋白H2B-EGFP的降解显著减少.
- 围绕整个核的自细胞体积聚在 ΔAoypt7 突变者的细胞质中.
- 含有核的自体积聚在突变者 ΔAoatg15 的真空体内.
结论:
- 在Aspergillus oryzae的核过程中,细胞核被自细胞完全吞.
- 相应地,Ypt7和Atg15蛋白质在自细胞-真空细胞融合和随后的真空细胞核降解中起着至关重要的作用.
- 这些发现为通过自细胞核的完全降解提供了机械的见解.
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