Q4ever Green核酸染料 *2000X DMSO 溶液*

	货号	17609	存储条件	在零下15度以下保存, 避免光照
	规格	2 ml	价格	23868
	Ex (nm)	503	Em (nm)	527
	分子量		溶剂	Water
	产品详细介绍

简要概述

实时聚合酶链反应（real-time PCR），也称为定量聚合酶链反应（qPCR），是一种基于聚合酶链反应（PCR）的流行的分子生物学实验室技术。它可以在PCR期间（即实时）检测目标DNA分子的扩增情况，而不是像常规PCR那样在结束时进行检测。实时PCR可以定量（定量实时PCR）和半定量（即高于或低于一定数量的DNA分子）（半定量实时PCR）使用。实时PCR中有两种检测PCR产物的常用方法，包括（1）结合任何双链DNA的非特异性荧光染料； （2）由寡核苷酸组成的序列特异性DNA探针，所述寡核苷酸用荧光报告物标记，仅在探针与其互补序列杂交后才允许检测。对于第一种方法，对DNA结合染料进行PCR的实时检测有两个要求，即（a）与双链DNA结合时增强荧光；（b）对PCR的抑制作用最小。 SYBR Green主要用于各种qPCR应用中。我们最近开发了新一代的SYBR Green Q4ever Green，用于解决SYBR Green的一些局限性，例如酶抑制。 Q4ever Green可以在PCR中使用，几乎没有PCR抑制作用，并提高了灵敏度。 Q4ever Green可用于检测任何双链DNA序列的扩增。假设您的PCR引物设计合理且反应特性良好，则无需探针，可以减少测定设置和运行成本。作为SYBR Green，主要缺点是它可能产生假阳性信号。即因为Q4ever Green染料与任何双链DNA结合。它也可以与非特异性双链DNA序列结合。设计良好的引物不扩增非靶序列，并进行熔解曲线分析，这一点极为重要。

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产品说明书

实验方案

储存在-20°C，避光。 按建议存放时，产品自收到之日起至少稳定12个月。

工作溶液配制

Q4ever Green工作溶液（50X）
使用水或TE缓冲液稀释2000X Q4ever Green储备溶液以制成50X Q4ever Green储备溶液。

操作步骤

建议使用以下协议。 如果需要，可以调整方案以达到最佳效果。

设置PCR反应如下：
5 µL 10X聚合酶缓冲液（不含镁）
2.5 µL的50 mM MgCl₂
2 µL 50X Q4ever Green工作溶液
2 µL的5 mM dUTP
1-5个单位的DNA聚合酶
加入所需的cDNA
每个引物100-1000 nM（正向和反向引物的终浓度）
用dH₂O将最终体积调整为50 µL。
在热循环荧光计上执行实时PCR并记录荧光信号。

参考文献

Direct detection of Helicobacter pylori from biopsies of patients in Lagos, Nigeria using real-time PCR-a pilot study.
Authors: Ajayi, A and Jolaiya, T and Smith, S I
Journal: BMC research notes (2021): 90

MinION Nanopore-based detection of Clavibacter nebraskensis, the corn Goss’s wilt pathogen, and bacteriomic profiling of necrotic lesions of naturally-infected leaf samples.
Authors: Xu, Renlin and Adam, Lorne and Chapados, Julie and Soliman, Atta and Daayf, Fouad and Tambong, James T
Journal: PloS one (2021): e0245333

A handheld continuous-flow real-time fluorescence qPCR system with a PVC microreactor.
Authors: Shi, Bing and Li, Yuanming and Wu, Di and Wu, Wenming
Journal: The Analyst (2020): 2767-2773

A quantitative loop-mediated isothermal amplification assay for detecting a novel goose astrovirus.
Authors: He, Dalin and Yang, Jing and Jiang, Xiaoning and Lin, Yun and Chen, Hao and Tang, Yi and Diao, Youxiang
Journal: Poultry science (2020): 6586-6592

A sensitive assay for dNTPs based on long synthetic oligonucleotides, EvaGreen dye and inhibitor-resistant high-fidelity DNA polymerase.
Authors: Purhonen, Janne and Banerjee, Rishi and McDonald, Allison E and Fellman, Vineta and Kallijärvi, Jukka
Journal: Nucleic acids research (2020): e87

Amplification Curve Analysis: Data-Driven Multiplexing Using Real-Time Digital PCR.
Authors: Moniri, Ahmad and Miglietta, Luca and Malpartida-Cardenas, Kenny and Pennisi, Ivana and Cacho-Soblechero, Miguel and Moser, Nicolas and Holmes, Alison and Georgiou, Pantelis and Rodriguez-Manzano, Jesus
Journal: Analytical chemistry (2020): 13134-13143

Comprehensive Data of P53 R282 Gene Mutation with Human Papillomaviruses (HPV)-Associated Oral Squamous Cell Carcinoma (OSCC).
Authors: Ekalaksananan, Tipaya and Wongjampa, Weerayut and Phusingha, Pensiri and Chuerduangphui, Jureeporn and Vatanasapt, Patravoot and Promthet, Supannee and Patarapadungkit, Natcha and Pientong, Chamsai
Journal: Pathology oncology research : POR (2020): 1191-1199

Detection of Phytophthora infestans by Loop-Mediated Isothermal Amplification, Real-Time LAMP, and Droplet Digital PCR.
Authors: Ristaino, Jean B and Saville, Amanda C and Paul, Rajesh and Cooper, Donald C and Wei, Qingshan
Journal: Plant disease (2020): 708-716

Detection of extended-spectrum beta-lactamase cefotaxime resistance and virulence genes in Escherichia coli by duplex quantitative real-time PCR and melt curve analysis.
Authors: Aijuka, M and Buys, E M
Journal: Letters in applied microbiology (2020): 54-60

Development of an EvaGreen based real-time RT-PCR assay for rapid detection, quantitation and diagnosis of goose calicivirus.
Authors: Lin, Su and Zhang, Shizhong and Wang, Shao and Xie, Kaichun and Jiang, Dandan and Xiao, Shifeng and Chen, Xiuqin and Chen, Shaoying
Journal: Molecular and cellular probes (2020): 101489