Q5® Hot Start High-Fidelity 2X Master Mix

#M0494

cloned at NEB recombinant No hifi hotstart pcr 3
Catalog # Size Concentration Price (£)
M0494L 500 REACTIONS 2 X £666.00
M0494S 100 REACTIONS 2 X £167.00
M0494X 500 REACTIONS 2 X £666.00

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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 DNA Polymerase results in ultra-low error rates. Q5 DNA Polymerase 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? Learn about 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)

  • Bulk format available: M0494X = 1 x 12.5 ml bottle


1. Josh Quick 2020. nCoV-2019 sequencing protocol v3 (LoCost). protocols.io https://www.protocols.io/view/ncov-2019-sequencing-protocol-v3-locost-bh42j8ye


The Q5® Hot Start High-Fidelity 2X Master Mix features a high-fidelity, thermostable, hot start DNA polymerase with 3´→ 5´ exonuclease activity, fused to a processivity-enhancing Sso7d domain to support robust DNA amplification. The addition of an aptamer-based inhibitor allows room temperature reaction setup. With an error rate ~280-fold lower than that of Taq DNA Polymerase, Q5 Hot Start High-Fidelity 2X Master Mix is ideal for cloning and can be used for long or difficult amplicons. The convenient master mix formulation is supplied at a 2X concentration. The mix contains dNTPs, Mg and a proprietary broad-use buffer requiring only the addition of primers and DNA template for robust amplification regardless of GC content. When used at the recommended 1X final concentration, the Q5 Hot Start High-Fidelity Master Mix contains 2 mM Mg . Q5 Hot Start High-Fidelity 2X Master Mix 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.

Q5-High Fidelity 2X Master Mix formats allow robust amplification of a broad range of targets with a single formulation. 
M0494 Amplification of a variety of human genomic amplicons from low to high GC content using Q5 Hot Start High-Fidelity 2X Master Mix. All reactions were set up at room temperature, conducted using 30 cycles of amplification and visualized by microfluidic LabChip® analysis.

Product Source

An E. coli strain that carries the Q5 High-Fidel

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The following link is to a PDF Safety Data Sheet (SDS) that applies to this product to help you use it safely.



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