SuperScript™ IV 反转录酶
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SuperScript™ IV 反转录酶
Invitrogen™

SuperScript™ IV 反转录酶

SuperScript™ IV 反转录酶 (RT) 是一种专有 MMLV 突变体,在 RT 反应中具有出色的稳健性和可靠性。SuperScript™了解更多信息
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货号反应次数
1809005050 次反应
1809001010 次反应
18090200200 次反应
货号 18090050
价格(CNY)
6,027.00
Each
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反应次数:
50 次反应
请求批量或定制报价
价格(CNY)
6,027.00
Each
添加至购物车
SuperScript™ IV 反转录酶 (RT) 是一种专有 MMLV 突变体,在 RT 反应中具有出色的稳健性和可靠性。SuperScript™ III 在抑制剂耐受性、合成性和反应速度等方面得到了很大提高,同时保留了前代酶的所有优点,包括较高的热稳定性、高效全长 cDNA 合成以及较低的 RNA 酶活性。SuperScript™ IV Rt 旨在在存在抑制剂下提供可靠、一致且快速的 cDNA 合成,前述抑制剂在很多样品中均存在且会导致其他当前可用的 RT 效率低下。

SuperScript™ IV RT 是 SuperScript™ 产品系列中所有 RT-PCR 和 qRT-PCR 应用的首选。尤其是当重现性和可靠性成为主要考虑事项,以及 RNA 样品中的抑制剂可能干扰 cDNA 合成,进而导致基因表达研究出现偏倚时,我们推荐使用这款产品。

SuperScript™ IV 反转录酶的功能包括:
•显著提高了对多种可能干扰 cDNA 合成的抑制剂的耐受性
• 可对多种样品进行稳健且具有特异性的 cDNA 合成
•较快的反转录酶反应,可将孵育时间从 >50 分钟缩短至 10 分钟
•与 SuperScript™ III RT 相比,持续合成能力显著提高

来源
从表达 M-MLV pol 基因的大肠杆菌中纯化,经修饰可提高热稳定性和半衰期、持续合成能力、抑制剂耐受性并降低 RNase H 活性。

性能和质量检测
脱氧核糖核酸内切酶、脱氧核糖核酸外切酶及核糖核酸酶检测;cDNA 产物的得率和长度。

单位定义
一单位的 SuperScript™ IV RT 是指在 37°C 下使用 poly(A) oligo(dT)12-18 作为模板/引物,将 1 纳摩尔脱氧核糖核酸在 10 min 内掺入酸可沉淀材料所需要的酶量。

单位反应条件
50 mM Tris-HCl(pH 值 8.3)、4 mM MgCl2、10 mM DTT、50 mM KCl、0.5 mM dTTP、0.4 MBq/mL [3H]-dTTP、0.4 mM poly(A) oligo (dT)12-18 和酶,20 μL,37°C 下 10 min。
仅供科研使用。不可用于诊断程序。
规格
最终产品类型第一链 cDNA
产品规格管装
反应次数50 次反应
最佳反应温度50°C
数量10,000 单位
反应形式单独组分
试剂类型反转录
逆转录酶SuperScript IV
核糖核酸酶 H 活性减少
运输条件干冰
尺寸(最终产品)长达 12.3 kb
原始材料RNA
技术反转录
最大浓度200 U/μL
高 GC PCR 扩增效果
反应速度10 min。
Unit SizeEach
内容与储存

• SuperScript IV RT,50 μL (200 U/μL)
• 5X RT 缓冲液,1 mL
• 0.1 M DTT,500 μL

储存在 –30°C 至 –5°C 下。

常见问题解答 (FAQ)

Can I use a DNA-RNA hybrid as a template for M-MLV Reverse Transcriptase (Cat. No. 28025013, 28025021)? Can other reverse transcriptases, such as SuperScript reverse transcriptase, be used in the same way?

Yes, you can use a DNA-RNA hybrid as a template for M-MLV Reverse Transcriptase.

We have not tested this for SuperScript reverse transcriptases, so we cannot guarantee it would also work with those products.

This article can be used as a reference for additional information.

Find additional tips, troubleshooting help, and resources within our Reverse Transcription and RACE Support Center.

In your SuperScript IV RT protocols, there is no ezDNase inactivation step. Will active ezDNase affect RNA or the RT reaction?

The Invitrogen ezDNase Enzyme is a novel DNase that is highly specific for double-stranded DNA. It has no activity on single-stranded DNA in RT reactions (primers or probes), or on RNA. The enzyme is also thermolabile—it is inactivated quickly at temperatures typical for the SuperScript IV RT reaction (e.g., 50°C). The additional inactivation step is therefore not required in RT-qPCR applications.

Find additional tips, troubleshooting help, and resources within our PCR and cDNA Synthesis Support Center.

Which SuperScript IV RT format do you recommend for real-time PCR applications?

For RT-qPCR applications we recommend using the Invitrogen SuperScript IV VILO Master Mix (Cat. No. 11756050). The cDNA synthesis reaction setup with this master mix requires fewer pipetting steps and therefore reduces variation in the data. SuperScript IV RT, as a component of the master mix, offers the highest efficiency of cDNA synthesis step compared to competitors’ products.

Find additional tips, troubleshooting help, and resources within our PCR and cDNA Synthesis Support Center.

Are there any significant changes in the SuperScript IV RT protocol compared to the SuperScript III RT protocol?

The only change is that the incubation time for the reverse transcription reaction has been reduced from 50 minutes to 10 minutes. All the other parameters and steps are the same.

Find additional tips, troubleshooting help, and resources within our PCR and cDNA Synthesis Support Center.

Can I get comparable cDNA yield and length using the SuperScript IV RT 10-minute protocol as when using the 50-minute protocol for SuperScript III RT?

When compared with SuperScript III RT (and other manufacturers’ RTs) in a synthesis reaction for a 9 kb cDNA, SuperScript IV RT performed successful synthesis in just 10 minutes and did so with comparable (or improved) yield (as shown by gel band density).

Find additional tips, troubleshooting help, and resources within our PCR and cDNA Synthesis Support Center.