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Kevin C Wilkins^1,2, Till Schroeder^1,3, Sohyun Gu¹

¹Department of Cell and Tissue Biology, University of California, San Francisco, San Francisco, California 94143, USA.

RNA (New York, N.Y.)

|May 2, 2024

概括

该研究引入了HART报告员来测量DDX3X翻译调节. 结果显示DDX3XX.

科学领域:

分子生物学分子生物学
在RNA生物学,RNA生物学.
遗传学是一个遗传学.

背景情况:

众所周知,蛋白质DDX3X调节了特定的人类转录的翻译.
复杂的5'非翻译区域 (5' UTRs) 在mRNA中对于翻译控制至关重要.
了解DDX3X在翻译中的机制对于理解基因表达调节至关重要.

研究的目的:

开发一种新的报告系统HART,用于测量DDX3X介导的翻译活动.
研究RNA结构在DDX3X敏感的5' UTRs中的作用.
确定DDX3X在翻译中的功能背后的分子机制.

主要方法:

开发用于翻译 (HART) 试验的酶活性报告器.
应用SHAPE-MaP (选择性2'-基化通过原料扩展和突变分析) 来确定RNA的二次结构.
分析5' UTRs中的序列改变及其对DDX3X灵敏度的影响,使用HART.

主要成果:

在细胞中,HART成功地测量了DDX3X依赖的转化活性.
SHAPE-MaP在DDX3X敏感的5' UTR中揭示了特定的二次结构.
鉴定出DDX3X的38-44残留物是与翻译机器的潜在介导相互作用.
无论是DDX3X与翻译机制的关联,还是其酶活性,都对促进目标mRNA的翻译至关重要.

结论:

DDX3X在调节翻译方面发挥着至关重要的作用,在核糖体扫描过程中与翻译机器相互作用.
哈特报告器是用于量化DDX3X依赖翻译的经过验证和有效工具.
这项研究为DDX3X介导的翻译控制的结构基础提供了洞察力.

关键词:

它们是RNA螺旋酶.结构 RNA 结构 RNA 结构记者基因记者基因翻译控制的翻译控制

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