Discovery and analysis of small non-coding RNAs (smRNAs) has become an important part of understanding gene expression regulation. Some of the well-known small RNA species are miRNAs, siRNAs, piRNAs, and snoRNAs, many of which range in size from 20 to 30 nt. The SMARTer smRNA-Seq Kit for Illumina has been specifically designed to generate high-quality Illumina-ready sequencing libraries from low-input amounts of small RNAs such as these. This kit was developed to work directly from 1 ng–2 µg inputs of total RNA or enriched small RNA samples, and incorporates features from the industry-leading SMART-Seq v4 kit, including SMART technology (Switching Mechanism at 5’ End of RNA Template) and locked nucleic acids (LNAs). Libraries are generated in a ligation-free manner, ensuring that diverse small RNA species are represented with minimal bias.
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蛋白的类型为PDGF。其有一种二聚体为PDGF-BB。
请教第一点:我看了Elisa的说明书,现在检测PDGF有两种试剂盒,一种是检测PDGF的,要求的试剂样本为组织匀浆;一种是检测PDGF-BB的,要求的待测样本为血液或血浆。
我现在的实验目的是想更精确,检验组织中的PDGF-BB,但是手中的是人体韧带组织样本,非PDGF-BB试剂盒所要求的组织样本为血浆或血清,我不知道是否可以用PDGF-BB的ELISA试剂盒的来做,所以特地请教:)
请教第二点:市面上有RB公司的96T,2500元;另外有Uscnlife的Elisa试剂盒,96T的3680元,都说是原装进口的,我该如何选择呢?为何差价这么多?谢谢指点!
一、免疫组化试剂盒一般包括:
1、特异性的一抗
2、免疫组化检测系统。
3、有的同时还具备显色系统。
二、不同的公司内容有差别,所以购买时一定了解清楚:
1、一抗是做人的还是兔、鼠的组织;
2、检测系统是ABC/SP/非生物素/其他;
3、试剂盒的内容都有什么?有没有显色系统?
4、如果没有,自己根据前面的检测系统需配哪个显色系统。(其他的辅助试剂如PBS缓冲液、抗原修复液等一般另卖或自配)
三、免疫组化抗体即指特异性一抗,是用来标记的指标,免疫组化过程的其他试剂一律另外配备。
另外:做实验时,如遇出结果困难,记得做阳性片对照,敢于怀疑检测系统或显色系统的问题。