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Bap170域在Drosophila melanogaster中增强剂依赖基因活性中的功能性作用

V K Chmykhalo¹, D Amendola², Y V Shidlovskii³

¹Institute of Gene Biology, Russian Academy of Sciences, Laboratory of Gene Expression Regulation in Development, Moscow, Russian Federation. vkchmykhalo@icloud.com.

Doklady. Biochemistry and biophysics

|February 3, 2025

概括

SWI/SNF染色体重塑剂的Bap170子单元在增强剂依赖转录中起着关键作用. 特定的区域,不包括ARID域,对于其在基因调节中的激活器功能至关重要.

科学领域:

分子生物学分子生物学
基因法规基因法规
染色体重塑染色体重塑的方法

背景情况:

这种SWI/SNF染色体重塑器对于基因表达调节至关重要.
Bap170是SWI/SNF的一个子单元,在转录中具有已知的作用.
了解Bap170的功能域是阐明其在增强剂依赖转录中的作用的关键.

研究的目的:

分析Bap170.0内的不同蛋白质域的功能意义.
为了确定哪些域对于Bap170的激活器功能在转录中至关重要.
研究Bap170在增强剂依赖转录中的作用.

主要方法:

人工招募Bap170子单位到LacZ记者推动者.
在Bap170.0中删除域后分析报告者基因表达的分析.
对Bap170变种具有特定域移除 (ARID,LXXLL动图,中央,C端区域) 的比较研究.

主要成果:

删除ARID域没有影响Bap170的报告员激活功能.
缺乏LXXLL图案的Bap170显示出增加的记者表达.
中部 (RFX,IDRs) 和C端 (指) 区域的删除显著降低了记者基因表达.
这些Bap170的特定区域对于增强剂依赖转录至关重要.

结论:

在这种情况下,ARID域对于Bap170的激活器功能并不必不可少.
Bap170的中央和C端区域对于其在增强剂依赖转录中的作用至关重要.
Bap170的功能域被精确地绘制为其在转录激活中的作用.

关键词:

在 ARID 域名中使用 ARID.在Bap170上使用.莱克萨斯 (LexA) 是一个这就是PBAP的PBAP.在SWI/SNF复合体中.增强剂是一种增强剂.

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