Description
Product Highlights
- Efficient – effectively inhibits a broad spectrum of eukaryotic RNases, including RNases A, B and C
- High-quality - certified free of contaminating DNases, RNases, phosphatases and nickases for improved sample security
- Robust – active up to 55 oC across a wide range of DTT concentrations and pH
- Flexible – compatible with all common reverse transcriptases, bacterial polymerases and thermostable polymerases
Product Description
Ribonucleases (RNases) are ubiquitous and can be introduced into experiments in many ways: for example co-purification during RNA isolation, carryover from bare hands and pipette tips. This RNase contamination can often go unnoticed. RiboSafe RNase Inhibitor is ideal for RNA-sensitive applications such as RT-qPCR as even a small amount of RNase can be detrimental to the final experimental outcome.
RiboSafe RNase Inhibitor is a highly efficient inhibitor of a broad spectrum of eukaryotic RNases and shows no inhibition of polymerase or reverse transcriptase activity, so can be used in cDNA synthesis or one-step RT-qPCR reactions.
RiboSafe RNase Inhibitor is tested for, purity (run on SDS-PAGE gel), presence and absence of endonucleases, nickases and exonucleases, thermostability, inhibition at different pH levels and activity in the presence or absence of DTT. This quality control allows RiboSafe RNase Inhibitor to be used in highly-sensitive techniques such as single-cell RT-PCR, in vitro RNA synthesis and in vitro translation.
Applications
- RNA purification
- cDNA synthesis
- One-step RT-PCR
- One-step RT-qPCR
- In vitro transcription/translation
- RNA Sequencing
- RNase protection assays
- Enzymatic RNA labeling reaction

dNTP Guide
Download the dNTP Guide with detailed product descriptions and performance data to help you choose the best product for your researchebiomall.com
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支原体培养则是取样后在培养基上培养,看有多少支原体菌落会长出,是比较直观和可信的结果。
总体来讲,这两种检查手段可信度都较高,结合一起,不仅可以可靠的知道有无解脲支原体感染,还能知道感染是否严重。
RMgX + RX = R-R + MgX2.
这个反应需要的能量比生成格氏试剂的高,
因此降低反应温度是第一个选择。
其次, 增加镁得摩尔比, 让 RX与镁有更多机会反应, 而不是与RMgX。
第三, 降低RX的浓度, 即用更多的溶剂, 因为溶剂和格氏试剂有很显著的溶剂络合。
第四, 缓慢滴加RX., 即降低RX.在反应体系的浓度。
第五, 增加搅拌速率, 即, 让RX.与镁有更好的接触。
ajtr0009-1230.pdf(2384.3k)
该试剂盒是一种时间分辨的荧光共振能量转移免疫分析,该反应是一个竞争免疫反应,即铕标的cAMP示踪复合物与体系中的cAMP竞争结合标有Alexa Fluor 647染料的cAMP抗体。铕标cAMP示踪复合物是通过Biotin标记的cAMP与铕标的抗生物素蛋白链菌素(streptavidin)与抗体的复合物紧密结合产生的。
当抗体结合到示踪剂上时,340nm的激发光激发铕标分子,导致能量转移到Alexa Fluor 647染料上,结果产生665nm的发射光。荧光的强度与样品中的cAMP含量成反比。
本试剂盒用于检测在GPCR激动剂刺激下活细胞或者细胞膜制备品产生的cAMP。对于偶联Gαs的受体,激动剂刺激导致665nm的荧光强度降低,而拮抗剂则可以逆转这一效应;对于偶联Gαi的受体,在激动剂刺激的同时用forskolin刺激cAMP产生,那么激动剂则抑制forskolin诱导的cAMP的生成,因此对照只给forskolin的细胞组可以通过665nm荧光强度的增加反应激动剂的效应。
该试剂盒的灵敏度很高,室温下反应在20h内是稳定的。本试剂盒适用于在384孔板中进行24μl的微量分析。

