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热稳定性DNA聚合酶,具有反转录酶活性
*若您需要这支酶的表达载体和菌株,可以联系我们。
-20℃储存,<0℃运输。
包装内容:
产品编号 | 产品名称 | 包装 |
P2023 | Tth DNA Polymerase (5U/μl) | 500U |
B20231 | 10X Tth PCR Buffer | 1ml |
B20232 | 5X Tth RT-PCR Buffer, One-Step | 0.75ml |
B20233 | 10X Tth Reverse Transcription Buffer | 0.3ml |
K1002 | dNTP (10mM each) | 200μl |
B1001 | 6X DNA Loading Buffer | 0.5ml |
K1008 | Mn(OAc)2 solution (25mM) | 0.75ml |
K1009 | MnCl2 (9mM) | 0.3ml |
K1010 | EGTA (7.5mM) | 1ml |
产品简介:
来源于嗜热真细菌Thermus thermophilus HB8的热稳定性DNA聚合酶,具有内在的反转录酶活性,能用于一步法检测。
高持续合成能力和耐热性。
5′-3′DNA聚合酶活性,无3′-5′外切酶活性。无RNase H酶活。
可用于DNA片段扩增/标记,Mn2+依赖的反转录cDNA合成,real-time PCR,细胞病毒RNA定量分析。
反转录温度60-70℃,特异性更高。对PCR抑制物具有更高的耐受性。
可RT-PCR扩增1kb产物。
于70℃,30分钟内将10 nmol脱氧核苷酸掺入到酸不溶性物质所需的酶量定义为1个活性单位(U)。
无外源核酸酶活性,无宿主DNA/RNA;蛋白纯度大于99%。
使用说明:
1. 一步法RT-PCR反应体系:解冻并彻底混匀各组分,于冰浴设置如下反应体系。
Component | 50μl reaction | Final Concentration |
5X Tth RT-PCR Buffer, One-Step | 5μl | 1X |
10mM dNTPs | 1.5μl | 300µM each |
10µM Forward Primer | 2.5μl | 0.5µM (0.2~1µM) |
10µM Reverse Primer | 2.5μl | 0.5µM (0.2~1µM) |
Template RNA | xμl | Up to 1μg |
Mn(OAc)2, 25mM | 5μl | 2.5mM |
Tth DNA Polymerase | 1µl | 5U |
Nuclease-free water | Up to 50µl |
Step | Temp. | Time | |
RT Reaction | 60-70℃ | 30min | |
Initial Denaturation | 94°C | 1min | |
10 Cycles | Denaturation | 94°C | 30s |
Annealing | 50-70°C | 30s | |
Extension | 72°C | 45s | |
20-30 Cycles | Denaturation | 94°C | 30s |
Annealing | 50-70°C | 30s | |
Extension | 72°C | 45s, add to each cycle 5sec | |
Final Extension | 72°C | 7min | |
Hold | 4-10°C |
Component | 20μl reaction | Final Concentration |
10X Tth Reverse Transcription Buffer | 2μl | 1X |
10mM dNTPs | 0.4μl | 200µM each |
MnCl2 (9mM) | 2μl | 0.9mM |
10µM Reverse Primer | 1.5μl | 0.75µM |
Template RNA | xμl | Up to 200ng |
Mn(OAc)2, 25mM | 5μl | 2.5mM |
Tth DNA Polymerase | 0.8µl | 4U |
Nuclease-free water | Up to 20µl |
Component | 80μl reaction | Final Concentration |
10X Tth PCR Buffer | 8μl | 0.8X |
EGTA, 7.5mM | 0.4μl | 200µM each |
10µM Forward Primer | 1.5μl | 150nM |
Nuclease-free water | Up to 80µl |
Step | Temp. | Time | |
Initial Denaturation | 94°C | 1min | |
10 Cycles | Denaturation | 94°C | 30s |
Annealing | 50-70°C | 30s | |
Extension | 72°C | 45s | |
20-30 Cycles | Denaturation | 94°C | 30s |
Annealing | 50-70°C | 30s | |
Extension | 72°C | 45s, add to each cycle 5sec | |
Final Extension | 72°C | 7min | |
Hold | 4-10°C |
Component | 50μl reaction | Final Concentration |
10X Tth PCR Buffer | 5μl | 1X |
10mM dNTPs | 1μl | 200µM each |
10µM Forward Primer | 2μl | 400nM |
10µM Reverse Primer | 2μl | 400nM |
Template DNA | xμl | Up to 500ng |
Tth DNA Polymerase | 0.5µl | 2.5U |
Nuclease-free water | Up to 50µl |
Step | Temp. | Time | |
Initial Denaturation | 94°C | 1min | |
10 Cycles | Denaturation | 94°C | 30s |
Annealing | 50-70°C | 30s | |
Extension | 72°C | 45s | |
20-30 Cycles | Denaturation | 94°C | 30s |
Annealing | 50-70°C | 30s | |
Extension | 72°C | 45s, add to each cycle 5sec | |
Final Extension | 72°C | 7min | |
Hold | 4-10°C |
使用高纯度模板RNA(不超过1μg总RNA),推荐使用Trizol或者柱纯化试剂盒。
严格遵守RNA操作规程,避免发生核酸酶污染。
优化Mn2+浓度1-4mM,取决于所使用的引物。