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基于菜的光照明生物传感器的滚动圆转录放大导向构建,用于无标签感应β-glucosyltransferase活动

Su Jiang¹, Huanhuan Shi¹, Qian Zhang¹

¹College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China.

Biosensors & bioelectronics

|July 7, 2023

概括

一个新的以菜为基础的生物传感器可以无标签检测β-glucosyltransferase (β-GT) 活性. 这种方法为表观遗传学研究和药物发现提供了敏感而高效的替代方案.

科学领域:

生物化学生物化学
分子生物学分子生物学
表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

β-葡萄糖转移酶 (β-GT) 通过修改5-氧甲基细胞因子 (5-hmC) 来调节基因表达.
现有的β-GT试验受到成本,复杂性和灵敏度的限制.

研究的目的:

开发一种新的,灵敏的,无标签的生物传感器,用于测量β-GT活动.
克服当前β-GT检测方法的局限性.

主要方法:

使用基于菜的阿帕特马和滚动圆转录放大 (RCTA).
设计了一个5hmC修改的多功能圆形探测探头 (5-hmC-MCDP).
采用MspI酶用于特异性和T7RNA聚合酶用于信号放大.

主要成果:

实现了高灵敏度的β-GT活动的无标签检测 (LOD 2.03 × 10−5 U/mL).
与传统方法相比,显示了4.6倍的信号噪声比率.
展示了非特异放大效应的有效抑制,导致低背景.

结论:

开发的基于菜的生物传感器为β-GT活动检测提供了一个灵敏而高效的平台.
这种试验适用于选β-GT抑制剂和确定动力学参数.
该方法在表观遗传学研究和药物发现方面具有重大潜力.

关键词:

5 - 葡萄糖氧甲基细胞氨酸.表观遗传研究表观遗传研究滚动圈转录放大放大滚动圈转录放大菜的阿帕特默体是菜的阿帕特默体.这是一种β-glucosyl转移酶.

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