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商业上可用的热稳定DNA聚合酶与反转录酶活性相结合的反转录聚合酶链反应试验的比较

Evgeniya V Smirnova¹, Konstantin A Blagodatskikh^2,3, Ekaterina V Barsova^1,4

¹Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 117997 Moscow, Russia.

Methods and protocols

|February 25, 2025

概括

具有内置逆转录酶活性的人造DNA聚合酶通过逆转录聚合酶链反应 (RT-PCR) 有效检测SARS-CoV2 RNA. 然而,它们不适合放大长RNA片段.

科学领域:

分子生物学分子生物学
病毒学病毒学
生物技术是生物技术.

背景情况:

反转录聚合酶链反应 (RT-PCR) 对于检测RNA标和病原体至关重要.
传统的RT-PCR使用逆转录酶和热稳定DNA聚合酶的酶混合物.
生物技术公司现在为结合RT-PCR提供具有集成逆转录酶活性的人造DNA聚合酶.

研究的目的:

在RT-PCR试验中,比较人工DNA聚合酶与常规酶混合物的性能.
评估人工酶对于检测SARS-CoV2RNA和内源mRNA的适用性.
评估人工酶在终点和实时RT-PCR应用中的实用性.

主要方法:

执行了终点和实时RT-PCR测定.
使用严重急性呼吸系统综合征相关的冠状病毒2 (SARS-CoV2) RNA作为模板.
使用内源mRNA分子作为额外的模板进行比较.

主要成果:

人工DNA聚合酶证明适用于各种RT-PCR应用.
使用人工酶,成功检测了SARS-CoV2 RNA.
人工酶被发现不适合长片段RT-PCR放大.

结论:

具有内置逆转录酶活性的人工热稳定DNA聚合酶是特定RT-PCR应用的可行替代品,包括病毒RNA检测.
这些人造酶提供了方便,但有局限性,特别是在放大扩展的RNA片段.
可能需要进一步的研究来优化人工酶,以更广泛的RT-PCR应用.

关键词:

在 GAPDH mRNA 中.这就是SARS-CoV2病毒.贝塔-2-微型全球蛋白mRNA 反向转录酶的使用反转录聚合酶连锁反应的反转录.热稳定的DNA聚合酶.

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