A photo-elutable 8–17 DNAzyme labeling and PCR-free colorimetric quantification strategy for 5-hydroxymethylcytosine in mammalian genomic DNA†

IF 2.6 3区 化学 Q2 CHEMISTRY, ANALYTICAL Analytical Methods Pub Date : 2025-02-07 DOI:10.1039/D5AY00111K
Mingfeng Lai, Shitao Lu, Bao Huang, Yanfeng Nie, Xu Wang, Jiaying Xiong and Zhenning Yu
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Abstract

We developed a PCR-free, cost-effective colorimetric assay using gold nanoparticles (AuNPs) to quantify 5-hydroxymethylcytosine (5hmC) without expensive MS instruments or antibodies. This method employs a photo-elutable 8–17 DNAzyme label specific to 5hmC sites, achieving accuracy comparable to ELISA when measuring 5hmC levels in various ICR mouse tissues.

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哺乳动物基因组DNA中5-羟甲基胞嘧啶的光洗脱8-17 DNAzyme标记和无pcr比色定量策略。
我们开发了一种无pcr,成本效益高的比色法,使用金纳米颗粒(AuNPs)来定量5-羟甲基胞嘧啶(5hmC),而不需要昂贵的质谱仪器或抗体。该方法采用光洗脱的5hmC位点特异性8-17 DNAzyme标记,在测量各种ICR小鼠组织中的5hmC水平时,其准确性与ELISA相当。
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来源期刊
Analytical Methods
Analytical Methods CHEMISTRY, ANALYTICAL-FOOD SCIENCE & TECHNOLOGY
CiteScore
5.10
自引率
3.20%
发文量
569
审稿时长
1.8 months
期刊介绍: Early applied demonstrations of new analytical methods with clear societal impact
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