- Extract total RNA (including microRNA) from FFPE samples
- No phenol extraction step
- Includes DNase for optional on-column DNA removal
- Isolated RNA is of the highest quality and integrity
- Isolate a diversity of RNA species
- Purified RNA is suitable for a variety of downstream applications, including Small RNA Sequencing. Find out more information on Norgen"s NGS services
- Buffer chemistry inactivates viruses including SARS-CoV-2 - Explore the Application Note
FFPE RNA Purification Kit
Norgen’s FFPE RNA Purification Kit provides a rapid method for the isolation and purification of total RNA (including microRNA) from formalin-fixed paraffin-embedded (FFPE) tissue samples in as little as 1 hour. Using formalin to fix tissues leads to crosslinking of the RNA and proteins, and the process of embedding the tissue samples can also lead to fragmentation of the RNA over time. Norgen’s FFPE RNA Purification Kit provides conditions that allow for the partial reversing of the formalin modifications, resulting in a high quality and yield of RNA. The kit is able to purify all sizes of RNA, from large mRNA and ribosomal RNA down to microRNA (miRNA) and small interfering RNA (siRNA), depending on the age of the FFPE tissue as fragmentation of the RNA is known to occur over time.
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向左转|向右转
如果是用转录出的cDNA做那跟平时就一样了。不需要特别的试剂盒、
1.模板提取(一般为RNA):Trizol、氯仿、异丙醇、无水乙醇、DEPC处理水
2.模板浓度测定:分光光度计或NanoDrop
3.逆转录:逆转录试剂盒(或者一步法试剂盒),这一步可以用普通PCR做,也可以用水域做。
4.荧光定量PCR试剂:通常有用SYBR Green Mix做的,但是这里建议你用EvaGreen做,灵敏度和平行性都要好于SYBR Green,并且如果你那是ABI或者Stratagene的PCR如果用SYBR Green还需要加一步Rox很麻烦。
5.其他:除了以上的那些还需要离心管、PCR管或板(Axygen反应比较好)、移液枪等,暂时就想到这么多。
和RevertAid™HMinusFirstStrandcDNASynthesisKit,FirstStrandcDNASynthesisKit
大家又没有用过,这个公司的酶据说很好啊。
逆转录(reverse transcription)是以RNA为模板合成DNA的过程,即RNA指导下的DNA合成。此过程中,核酸合成与转录(DNA到RNA)过程与遗传信息的流动方向(RNA到DNA)相反,故称为逆转录。逆转录过程是RNA病毒的复制形式之一,需逆转录酶的催化。 逆转录过程的揭示是分子生物学研究中的重大发现,是对中心法则的重要修正和补充。人们通过体外模拟该过程,以样本中提取的mRNA为模板,在逆转录酶的作用下,合成出互补的cDNA,构建cDNA文库,并从中筛选特异的目的基因。该方法已成为基因工程技术中最常用的获得目的基因的策略之一。
加尾法是采用加A酶先对mirna进行加尾,然后再用带oligodt的引物反转录,他的反转录引物是通用的,一次反转录可以获得所有miRNA的cdna,效率高。茎环法是采用特异性反转录引物序列+颈环结构作为反转录引物进行反转录的,一次反转录只能获得一种mirna的cdna,可能有几种一起反转录的,这个我不太清楚一起反转录的效果。然后茎环法的经典即ABI的探针法定量试剂盒。我用过茎环法反转录+染料法定量的,下游引物为通用引物,结果不太好,就现在用的这家的他采用的是双向引物都是特异性的,效果还可以。不知道我说的清楚不,希望能对你有帮助。





