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在裂变酵母中,DNA结合对CSL蛋白功能至关重要

Anna Marešová¹, Martina Oravcová¹, María Rodríguez-López²

¹Department of Cell Biology, Faculty of Science, Charles University, Viničná 7, 128 00 Prague 2, Czechia.

Journal of cell science

|March 14, 2024

概括

裂变酵母中的CSL蛋白对DNA结合至关重要,以调节细胞粘附和新陈代谢等关键细胞功能. 破坏DNA结合会损害这些过程,突出其关键作用.

科学领域:

分子生物学分子生物学
酵母遗传学酵母遗传学
转录因子法规转录因子法规

背景情况:

CSL蛋白质是动物和真菌中保存的转录因子,调节重要的细胞过程.
在裂变酵母 (Schizosaccharomyces pombe) 中,CSL蛋白控制细胞循环,脂质代谢和细胞粘附.
CSL蛋白利用N端的Rel-like和中央β-trefoil域进行DNA结合.

研究的目的:

为了调查核分裂酵母中CSL蛋白质的DNA结合的功能意义.
为了确定哪些CSL蛋白功能依赖于完整的DNA结合能力.

主要方法:

创建具有受损DNA结合域的CSL蛋白突变体.
对CSL突变体的表型分析,以评估各种细胞过程.
调查脂质代谢和染色质结构之间的潜在联系.

主要成果:

大多数CSL蛋白在裂变酵母中的功能需要完整的DNA结合.
结合DNA对于调节细胞粘附,脂质代谢,细胞周期进展,lncRNA表达和基因组稳定性至关重要.
在CSL突变体中改变的脂质代谢与染色质结构的变化相关.

结论:

对于CSL蛋白在裂变酵母中的多样性功能来说,DNA结合是不可或缺的.
脂质代谢的干扰,受CSLDNA结合活性的影响,可能会影响染色体结构.
这项研究强调了DNA结合对CSL蛋白介导调节在Schizosaccharomyces pombe.的基本重要性.

关键词:

在CSL蛋白质中.细胞粘附细胞粘附染色体结构染色体结构结合 DNA 的 DNA 结合.裂变酵母酵母是一种裂变酵母.基因组完整性基因组完整性脂质新陈代谢脂质新陈代谢

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