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Updated: Jun 6, 2025

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Ppn2多酸酶提高S.S.的能力类植物在温和的性环境中生长

Irina A Eliseeva¹, Lubov Ryazanova², Larisa Ledova²

¹Institute of Protein Research, Russian Academy of Sciences, Institutskaya 4, Pushchino 142290, Russia.

Journal of fungi (Basel, Switzerland)

|November 26, 2024

概括

在酵母中过度表达Ppn2多酸酶,通过水解无机多酸盐,在性条件下显著缩短滞后期. 这项研究确定了对于酵母适应性环境至关重要的新型基因.

科学领域:

微生物学微生物学
分子生物学分子生物学
生物化学生化学

背景情况:

无机多酸盐及其代谢酶对于酵母在压力下生长至关重要.
在酵母应激适应过程中,特定的多酸盐代谢蛋白还没有得到充分的研究.
在酵母应激反应中PPN2多酸酶的作用需要进一步研究.

研究的目的:

在生物化学和转录学上表征一种过度表达Ppn2多酸酶的酵母菌株.
阐明Ppn2在酵母适应性条件中的作用.
确定参与酵母性应激反应的新型基因和蛋白质.

主要方法:

对CRN/PPN2和CRN酵母菌株进行了生物化学测定和转录基因分析 (RNA-Seq).
在YPD和性条件下对基因表达特征进行比较分析.
识别基因的功能验证通过淘汰应变分析.

主要成果:

在性介质中,Ppn2过度表达减少了滞后相,这可能是通过化多酸盐和中和氧化离子来实现的.
RNA-Seq揭示了与Ppn2过度表达和性适应相关的转录基因变化.
对于ECM8,YOL160W,CPP3和YCR099C等基因的淘汰菌株,在性条件下显示出生长或形态缺陷.

结论:

Ppn2在酵母适应性环境方面发挥着重要作用.
过度表达Ppn2增强了在不利的性条件下酵母的弹性.
几种新型基因及其蛋白质产物在功能上参与维持在性介质中的酵母生长.

关键词:

这是CYSTM蛋白质.科赫科赫是一个古老的城市.在Ppn2中,Ppn2是指Ppn2.在RNA-Seqq.这种植物是Saccharomyces cerevisiae.聚酸酶是一种多酸酶.聚酸聚酸盐是一种多酸盐.

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