Phusion™ Hot Start II DNA Polymerases (2 U/μL)
Phusion™ Hot Start II DNA Polymerases (2 U/μL)
Thermo Scientific™

Phusion™ Hot Start II DNA Polymerases (2 U/μL)

Thermo Scientific Phusion High-Fidelity DNA polymerases set a gold standard for high performance PCR.
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카탈로그 번호색상반응 수
F549XLColorless2000 Reactions
F537SGreen100 Reactions
F537LGreen500 Reactions
F549SColorless100 Reactions
F549LColorless500 Reactions
카탈로그 번호 F549XL
제품 가격(KRW)
3,187,000
온라인 행사
Ends: 31-Mar-2026
3,642,000
할인액 455,000 (12%)
Each
카트에 추가하기
색상:
Colorless
반응 수:
2000 Reactions
대량 주문 또는 맞춤형 요청
제품 가격(KRW)
3,187,000
온라인 행사
Ends: 31-Mar-2026
3,642,000
할인액 455,000 (12%)
Each
카트에 추가하기
Thermo Scientific Phusion High-Fidelity DNA polymerases set a gold standard for high performance PCR. Featuring an error rate 50-fold lower than that of Taq and 6-fold lower than that of Pfu, Phusion High-Fidelity DNA Polymerase is excellent choice for cloning and other applications requiring high fidelity. Phusion DNA polymerases offer robust performance with short protocol times, even in the presence of PCR inhibitors, and generate higher yields with lower enzyme amounts than other DNA polymerase.

With Phusion Hot Start II High-Fidelity DNA Polymerase amplification proceeds without the production of nonspecific products due to the combination of Phusion DNA Polymerase and a reversibly bound, specific Affibody ligand that inhibits DNA polymerase activity at room temperature. The Affibody ligand also inhibits the 3' to 5' exonuclease activity of the polymerase, thus preventing degradation of primers and template DNA during reaction set up. At temperatures that promote polymerase activity, the ligand is released, rendering the polymerase fully active. Phusion Hot Start II DNA Polymerase is immediately reactivated at high temperatures, so it does not require a separate activation step in PCR protocols.

Phusion Hot Start II High-Fidelity DNA Polymerase is a combination of Phusion Hot Start II DNA Polymerase and the 5X Phusion buffers. The buffers include a density reagent and two tracking dyes which do not interfere with the robust performance of Phusion Hot Start II DNA Polymerase. Researchers may directly load PCR products on a gel making this a versatile option for use in downstream applications such as DNA sequencing, ligation and restriction digestion.

Highlights

  • Reaction set up at room temperature
  • No non-specific amplification and primer degradation during reaction set up
  • Zero-time reactivation due to unique hot start technology
  • High fidelity (52X Taq)
  • Fast PCR due to short extension times (15–30 s/kb)
  • Robust reactions, minimal optimization needed
  • Increased product yields with minimal enzyme amounts
  • Direct loading on gels

Applications

  • High-fidelity PCR
  • High throughput
  • Amplification of difficult (GC-rich) templates
  • Template generation for sequencing
  • Multiplex PCR
  • Long-range PCR
  • Cloning
  • Mutagenesis
  • Microarray

Using Phusion DNA polymerases

Annealing rules for Phusion DNA polymerases are different from many common DNA polymerases (such as Taq DNA polymerases).

For Research Use Only. Not for use in diagnostic procedures.
사양
색상Colorless
Fidelity (Taq 대비)52X
핫 스타트Built-In Hot Start
반응 수2000 Reactions
오버행Blunt
중합효소Phusion Hot Start II DNA Polymerase
제품 유형Hot Start DNA Polymerase and dNTP Mix
수량2000 units
반응 형식Standalone
배송 조건Dry Ice
크기(최종 제품)20 kb or less
농도2 U/μL
용도(애플리케이션)Hot-start PCR, High-fidelity PCR
GC-Rich PCR PerformanceHigh
반응 속도Fast
Unit SizeEach
구성 및 보관
• Phusion Hot Start II High-Fidelity DNA Polymerase (2 U/μL)
• 5X Phusion HF & GC Buffers
• DMSO
• 50 mM MgCl2 solution

Phusion HF Buffer and Phusion GC Buffers each provide 1.5 mM MgCl2 in the final 1X concentration.
Store at -20°C.

자주 묻는 질문(FAQ)

What is enzyme concentration in Phusion Hot Start II High-Fidelity PCR Master Mix?

Phusion Hot Start II DNA polymerase concentration is optimized to give good results in most reactions. When the PCR reaction is set up according to the instructions, the final concentration of Phusion enzyme is 1 U in 50 µL reaction (0.4 U in 20 µL reaction).

Do Phusion DNA Polymerases add the non-template dependent 3'-A overhang?

Phusion DNA Polymerases generate blunt end products; therefore, blunt end cloning is recommended. If TA cloning is required, it can be performed by adding A overhangs to the blunt PCR product with e.g. Taq DNA Polymerase (Cat. No. EP0401). However, before adding the overhangs it is very important to remove all the Phusion DNA Polymerase by purifying the PCR product carefully, as the proofreading activity in Phusion DNA Polymerase is very strong. Any remaining Phusion DNA Polymerase will degrade the A overhangs, thus creating blunt ends again.

Can Phusion DNA Polymerases extend at 1 second/kb?

Yes it is possible, especially when amplifying smaller amplicons. Processivity of Phusion DNA Polymerases is 10 times that of Pfu. We recommend extension times of 15 s/kb for Phusion Flash PCR Master Mix. 15 s/kb is a conservative value that we can promise to work with almost any amplicon. In many cases, significantly shorter extension times (0-5 s/kb) can be used without compromising the yield. What separates Phusion Flash DNA Polymerase from other fast polymerases is that all steps in the PCR protocol can be shortened, including annealing and denaturation. This results in extremely fast protocols as compared with any other polymerase.

Can protocols optimized for Phusion DNA Polymerase be directly applied to Phusion Hot Start II DNA Polymerase?

Yes, protocols optimized for Phusion DNA Polymerase can be applied to Phusion Hot Start II DNA Polymerase reactions.

Do Phire and Phusion Hot Start II DNA Polymerases need a separate activation step in the PCR protocol?

No separate activation step is required since Phire and Phusion Hot Start II DNA Polymerases are inactivated by a reversibly bound, specific Affibody ligand that dissociates during initial denaturation.