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Q5® High-Fidelity DNA Polymerase sets a new standard for both fidelity and robust performance. With the highest fidelity amplification available (~280 times higher than Taq), Q5 results in ultra-low error rates. Q5 is composed of a novel polymerase that is fused to the processivity-enhancing Sso7d DNA binding domain, improving speed, fidelity and reliability of performance.
Working with uracil-containing DNA templates or using dUTP? Try Q5U® Hot Start High-Fidelity DNA Polymerase (NEB #M0515).
Highest fidelity amplification (~280X higher than Taq)
Ultra-low error rates
Superior performance for a broad range of amplicons (from high AT to high GC)
Compatible with a universal annealing temperature protocol at 62°C. Learn more in our application note.
Q5® High-Fidelity DNA Polymerase is a high-fidelity, thermostable DNA polymerase with 3´→ 5´ exonuclease activity, fused to a processivity-enhancing Sso7d domain to support robust DNA amplification. With an error rate ~280-fold lower than that of Taq DNA Polymerase, Q5 High-Fidelity DNA Polymerase is ideal for cloning and can be used for long or difficult amplicons. Q5 High-Fidelity DNA Polymerase is supplied with an optimized buffer system that allows robust amplification regardless of GC content. The 5X Q5 Reaction Buffer contains 2 mM Mg++ at final (1X) reaction concentrations and is recommended for most routine applications. For GC-rich targets (≥ 65% GC), amplification can be improved by the addition of the 5X Q5 High GC Enhancer. Q5 High-Fidelity DNA Polymerase is unlike typical, lower fidelity PCR enzymes. To determine the optimal annealing temperatures for a given set of primers, use of the NEB Tm Calculator is highly recommended.
Figure 1: Q5 formats support robust amplification of a broad range of targets
For flexibility, standalone Q5 polymerase products and the included High GC Enhancer can support amplification of targets with differing amounts of GC content. For convenience, and to amplify a broad range of target GC content, Q5 master mixes are recommended.
Figure 2: Amplification of a variety of human genomic amplicons from low to high GC content using Q5 High-Fidelity 2X Master Mix
All reactions were conducted using 30 cycles of amplification and visualized by microfluidic LabChip® analysis.
Product Source
An E. coli strain that carries the Q5 High-Fidelity DNA Polymerase gene.
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Specifications & Change Notifications
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This product is intended for research purposes only. This product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.
New England Biolabs (NEB) is committed to practicing ethical science – we believe it is our job as researchers to ask the important questions that when answered will help preserve our quality of life and the world that we live in. However, this research should always be done in safe and ethical manner. Learn more.
Licenses
This product is covered by one or more patents.
This product is licensed for research and commercial use from Bio-Rad Laboratories, Inc., under U.S. Pat. Nos. 6,627,424, 7,541,170, 7,670,808, 7,666,645, and corresponding patents in other countries. No rights are granted for use of the product for Digital PCR or real-time PCR applications, with the exception of quantification in Next Generation Sequencing workflows.
For additional information or to inquire about commercial use, please contact busdev@neb.com.
Trademarks
Q5® is a registered trademark of New England Biolabs, Inc.
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