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Phusion® Hot Start Flex DNA Polymerase
For high speed and high performance PCR. Manufactured and quality-controlled at New England Biolabs, Thermo Scientific® Phusion High-Fidelity DNA Polymerase offers both high fidelity and robust performance.
50X higher fidelity than Taq
Robust reactions with minimal optimization
Hot start formulation enables room temperature reaction setup and reduces non-specific amplification
High yields with shorter extension times
产品信息
High Fidelity DNA Polymerases are important for applications in which the DNA sequence needs to be correct after amplification. Phusion High-Fidelity DNA Polymerase offers both high fidelity and robust performance, and thus can be used for all PCR applications. Its unique structure, a novel Pyrococcus-like enzyme fused with a processivity-enhancing domain, increases fidelity and speed. Phusion DNA Polymerase is an ideal choice for cloning and can be used for long or difficult amplicons. With an error rate 50-fold lower than that of Taq DNA Polymerase and 6-fold lower than that of Pyrococcus furiosus DNA Polymerase (1), Phusion is one of the most accurate thermostable polymerases available. Phusion DNA Polymerase possesses 5´→ 3´ polymerase activity, 3´→ 5´ exonuclease activity and will generate blunt-ended products.
Phusion Hot Start Flex DNA Polymerase offers robust, high fidelity performance and room temperature reaction setup. The addition of an aptamer-based inhibitor allows room temperature reaction setup. Phusion Hot Start Flex DNA Polymerase is supplied with standard 5X Phusion HF Buffer, as well as 5X Phusion GC Buffer, which can be used for complex or GC-rich templates. Each of these buffers contains MgCl2 (1.5 mM at the final [1X] reaction concentration). Reactions can also be optimized using the provided DMSO or MgCl2 solutions.
Phusion Hot Start Flex DNA Polymerase is unlike other enzymes and care must be taken when designing cycling protocols. To determine the optimal annealing temperatures for a given set of primers, use of the NEB Tm Calculator is highly recommended.
产品来源
An E. coli strain that carries the Phusion DNA Polymerase gene.
产品类别:
Phusion® High-Fidelity DNA Polymerases Products
应用:
Hot Start PCR,
Long Range PCR,
Fast PCR,
High-Fidelity PCR,
Multiplex PCR,
Specialty PCR,
Routine PCR,
PCR
产品组分信息
产品组分信息
本产品提供以下试剂或组分:
NEB #
名称
组分货号
储存温度
数量
浓度
M0535S
-20
Phusion® Hot Start Flex DNA Polymerase
M0535SVIAL
-20
1 x 0.05 ml
2,000 units/ml
Phusion® HF Buffer Pack
B0518SVIAL
-20
2 x 1.5 ml
5 X
MgCl2 solution
B0510AVIAL
-20
1 x 1.5 ml
50 mM
DMSO
B0515AVIAL
-20
1 x 0.5 ml
100 %
Phusion® GC Buffer Pack
B0519SVIAL
-20
1 x 1.5 ml
5 X
M0535L
-20
Phusion® Hot Start Flex DNA Polymerase
M0535LVIAL
-20
1 x 0.25 ml
2,000 units/ml
Phusion® HF Buffer Pack
B0518SVIAL
-20
6 x 1.5 ml
5 X
MgCl2 solution
B0510AVIAL
-20
2 x 1.5 ml
50 mM
DMSO
B0515AVIAL
-20
1 x 0.5 ml
100 %
Phusion® GC Buffer Pack
B0519SVIAL
-20
2 x 1.5 ml
5 X
特性和用法
单位定义
One unit is defined as the amount of enzyme that will incorporate 10 nmol of dNTP into acid insoluble material in 30 minutes at 74°C.
贮存溶液
20 mM Tris-HCl 100 mM KCl 1 mM DTT 0.1 mM EDTA 200 µg/ml BSA 50% Glycerol 1X stabilizers pH 7.4 @ 25°C
热失活
否
5′ – 3′ 核酸外切酶
No
单位活性检测条件
25 mM TAPS-HCl (pH 9.3 @ 25°C), 50 mM KCl, 2 mM MgCl2, 1 mM β-mercaptoethanol, 200 μM dNTPs including [3H]- dTTP and 15 nM primed M13 DNA.
优势和特性
应用特性
High-specificity PCR
Cloning
Long or Difficult Amplification
High-Throughput PCR
相关产品
相关产品
Deoxynucleotide (dNTP) Solution Mix
Deoxynucleotide (dNTP) Solution Set
Magnesium Chloride (MgCl2) Solution
Phusion® High-Fidelity DNA Polymerase
Phusion® High-Fidelity PCR Kit
Phusion® High-Fidelity PCR Master Mix with HF Buffer
Phusion® Hot Start Flex 2X Master Mix
Phusion® High-Fidelity PCR Master Mix with GC Buffer
单独销售的组分
Phusion® GC Buffer Pack
Phusion® HF Buffer Pack
参考文献
Frey, B. and Suppman, B. (1995). BioChemica. 2, 34-35.
Chester, N. and Marshak, D.R. (1993). Analytical Biochemistry. 209, 284-029.
操作说明、说明书 & 用法
操作说明
PCR Protocol for Phusion® Hot Start Flex DNA Polymerase (M0535)
使用指南
Activity of Restriction Enzymes in PCR Buffers
Guidelines for PCR Optimization with Thermophilic DNA Polymerases
工具 & 资源
选择指南
DNA Polymerase Selection Chart
Thermophilic DNA Polymerases
Web 工具
Tm Calculator
FAQs & 问题解决指南
FAQs
Is Phusion® Hot Start Flex DNA Polymerase the same as Phusion Hot Start DNA Polymerase (#F-540S/L) or Phusion Hot Start II DNA Polymerase (#F-549S/L), which were previously sold by NEB?
Are the DNA fragments products by Phusion® Hot Start Flex DNA Polymerase blunt-ended or do they have the single-base 3’ overhang that Taq DNA Polymerase yields?
What are the advantages of using Phusion® Hot Start Flex DNA Polymerase?
I am having trouble amplifying a template that is longer than 5kb. How can I optimize my product yield using Phusion® Hot Start Flex DNA Polymerase?
Why do I see no product or low yield on an agarose gel after a PCR using Phusion® Hot Start Flex DNA Polymerase?
Will Phusion® Hot Start Flex DNA Polymerase incorporate dUTPs?
Why are there low molecular weight discrete bands on an agarose gel after a PCR using Phusion® Hot Start Flex DNA Polymerase?
I’d like to clone a fragment amplified with Phusion® Hot Start Flex DNA Polymerase. Do I have to blunt-end clone?
I see foaming when my Phusion® Hot Start Flex-amplified PCR products are spotted on microarray slides.
What should my primer concentration be when using Phusion® Hot Start Flex DNA Polymerase?
How does the fidelity of Phusion® DNA Polymerase compare to Taq DNA Polymerase?
Why are there high molecular weight smears or DNA in the wells of an agarose gel after a PCR using Phusion Hot Start Flex DNA Polymerase?
Does Phusion® Hot Start Flex DNA Polymerase exhibit a strand displacement activity?
How do I activate Phusion® Hot Start Flex DNA Polymerase?
问题解决指南
PCR Troubleshooting Guide
实验技巧
Phusion Hot Start Flex has different annealing temperature requirements than most PCR enzymes. Please check out the NEB Tm Calculator to help you determine your optimal Phusion annealing temperature.
引用 & 技术文献
引用文献
产品引用文献查找工具
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专题文章
Polymerase Fidelity: What is it, and what does it mean for your PCR?
Using aptamers to control enzyme activities: Hot Start Taq and beyond