在Saccharomyces cerevisiae中表达细胞周期类似物的表达动力学和遗传补偿
Gabriele Schreiber1, Facundo Rueda1, Florian Renner1
1Theoretical Biophysics, Humboldt-Universität zu Berlin, Invalidenstr. 42, 10115 Berlin, Germany.
Cells
|March 26, 2025
概括
酵母细胞周期进展涉及循环素依赖激酶CDK1和类似基因. 这项研究使用单分子廉价光 in situ 杂交 (smiFISH) 来表明这些对应物具有不同的表达模式和角色,挑战了功能冗余的假设.
科学领域:
- * 分子和细胞生物学
- * 酵母遗传学公司
- * 细胞循环调节 * 细胞循环调节
背景情况:
- * 细胞循环的进展在 * 糖菌* 是由环林结合环林依赖性激酶CDK1.1调节的.
- * 进化过程中基因重复导致了相似的循环蛋白,通常被认为具有相似的功能和表达周期.
- * 了解对应函数对于破译精确的细胞循环控制机制至关重要.
研究的目的:
- * 系统地比较参与酵母细胞周期进展的五种相似基因对的表达模式和强度.
- * 为了研究一个基因被淘汰后,对等基因之间的功能补偿.
- * 为了确定相似的基因是否在细胞周期内表现出不同的作用或表达时间.
主要方法:
- *单分子廉价光在位杂交 (smiFISH) 用于量化酵母细胞中的基因表达.
- *开发了一个卷积神经网络 (CNN),以准确地将细胞分类为特定的细胞周期阶段.
- * 基因表达分析在野生型和淘汰杆菌菌株中进行,用于选择的类似基因对.
主要成果:
- *在相似的基因对中观察到表达相关性和时间概况的显著差异 (例如, *CLN1*/*CLN2*与 *CLB3*/*CLB4*).
- * *CLB1*和*CLB2*在对比删除时表现出补偿表达,与*ACE2*/*SWI5*不同.
- * *CLB1*和*CLB2*分别在G2阶段母细胞和芽细胞中显示出明显的空间表达模式.
结论:
- * 酵母细胞周期对应物在功能上不相同,具有独特的表达强度和时间.
- * 类似基因可以表现出补偿性表达,但这在所有基因对中并不普遍.
- *不同的角色,如G2中的空间分区,突出了类似基因在细胞循环调节中的专业功能.
关键词:
在CLB1/CLB2中,在CLB3/CLB4中使用.在 CLB5/CLB6 中.在CLN1/CLN1中使用.在SWI5/ACE2中使用.这种植物是Saccharomyces cerevisiae.细胞循环中的细胞循环.骑行者是骑自行车的人.类似的基因单分子廉价光在位杂交 (smiFISH)更多相关视频
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