Hieff UNICON® Universal Blue qPCR SYBR Green Master Mix是2×实时定量PCR扩增的预溶液,具有高灵敏度和高特异性的特点,颜色为蓝色,具有加样示踪的作用。核心组分Hieff UNICON® Taq DNA聚合酶采用抗体法热启动,可以有效抑制样品准备过程中引物退火导致的非特异性扩增。同时配方添加了提升PCR反应扩增效率因子和均衡不同GC含量(30~70%)基因扩增的促进因子,使定量PCR可以在宽广的定量区域内获得良好的线性关系。
本产品中含有特殊的ROX Passive Reference Dye,适用于所有qPCR仪器,无需在不同的仪器上调整ROX的浓度,只需在配制反应体系时加入引物和模板即可进行扩增。
- 全仪器平台通用:预混特定类型参比染料,无需调整ROX浓度
- 易于示踪:蓝色预混液,观察颜色可直接区分是否加样
- 强稳定性:室温配制体系,配制后的体系可4℃放置24 h,检测结果无变化
- 上机快速:兼容常规程序与快速程序,最快46 min完成定量实验
- 扩增性能好:扩增效率高,特异性好,可检测个位拷贝数基因
- 全平台通用:适用于所有qPCR机型
图1. Hieff UNICON® Universal Blue 预混液可实现全平台通用。针对不同仪器平台,与T品牌对比,Hieff UNICON® Universal Blue 预混液Ct值起峰更加靠前。以2 µL的质粒10倍梯度稀释液为模板,扩增IL23R基因。
- 灵敏度高:可检测至单拷贝
图2. Hieff UNICON® Universal Blue 预混液可有效检测7个数量级范围的模板量,扩增效率高,可在宽广的线性范围内获得良好的线性关系。以2 µL的106-100拷贝的质粒为模板,扩增人IL23R基因。
- 检出率和特异性良好:广泛适用于30-70%GC含量的扩增子
图3. Hieff UNICON® Universal Blue预混液广泛适用于30-70%GC含量的扩增子,保证了极高的特异性检出率。以2 µL的293T cDNA为模板,利用Primer5软件设计1000对长度为200 bp扩增子(GC%含量30%-70%)的引物,随机扩增其中的27个扩增子。
- 分辨率高:可精准分辨2倍模板浓度差异
图4. Hieff UNICON® Universal Blue 预混液可精准区分2倍模板浓度差异。以2 µL的293T cDNA原液的2倍梯度稀释液为模板,扩增GAPDH基因。
- 复孔重复性好:90个复孔
图5. Hieff UNICON® Universal Blue预混液具备良好的重复性,90个复孔的扩增曲线高度重合,Ct值标准偏差<0.2。以1 µL的293T cDNA为模板,扩增GAPDH基因。
冰袋运输。-20℃避光储存,有效期18个月。
本品避免反复冻融。产品中含有荧光染料SYBR Green I,保存或配制反应体系时需避免强光照射。
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