i7® Hot Start High-Fidelity DNA Polymerase has the high-fidelity, sensitivity and processivity with an error rate ~2.8×102 fold lower than Taq DNA polymerase, and significantly lower than the error rates of other proofreading enzymes.
i7® Hot Start High-Fidelity DNA Polymerase
$199.00 – $399.00
Intact Genomics (IG) i7® Hot Start High-Fidelity DNA Polymerase is a genetically engineered, heat stable DNA polymerase which has 5´→3´ polymerase and 3´→5´ exonuclease (proofreading) activities. i7 Hot Start High-Fidelity DNA Polymerase is chemically modified that leads to complete inactivation of the polymerase until the initial heat activation step at the start of PCR. Hot start PCR reduces non-specific amplification during setup stages of the reaction and helps increase PCR specificity and sensitivity. This enzyme has the high-fidelity, sensitivity and processivity with an error rate ~2.8×102-fold lower than Taq DNA polymerase, and significantly lower than the error rates of other proofreading enzymes in the marketplace (1). i7® Hot Start High-Fidelity DNA Polymerase is ideal for cloning and can be used for long (up to 20kb) or difficult amplicons. This product is supplied with the Intact Genomics proprietary 2.5x PCR reaction buffer containing MgCl2 with a final (1x) concentration of 2 mM. This buffer allows for amplification of non GC rich templates and of GC rich templates up to 84%.
i7® Hot Start High-Fidelity DNA Polymerase generates robust and high-quality PCR products with difficult templates (Fig. A). PCR extension temperatures can be used between 68 to 72º C (Fig. B). This enzyme is resistant to different PCR inhibitors such as heparin, humic acid and xylan (Fig. C).
- Long and difficult template DNA amplification
- High-fidelity PCR
- Efficient for amplifying high GC content template DNA with magic enhancer
- i7® Hot Start High-Fidelity DNA Polymerase
- 2.5x i7 PCR Buffer with Mg2+
50 mM Tris-HCl, 50 mM KCl, 1 mM DTT, 0.1 mM EDTA, 50% Glycerol, pH 7.5 @ 25ºC
Quality Control Assays
i7® Hot Start High-Fidelity DNA Polymerase is free from detectable nuclease activities.
One unit is defined as the amount of enzyme that incorporates 10 nmoles of dNTP into acid-insoluble form in 30 minutes at 72º C.
200 Units, 500 Units
- Thaw i7® PCR Buffer, dNTP mix, primer solutions and mix thoroughly before use.
- Prepare a reaction mix according to the following table: (The reaction mix typically contains all the components needed for PCR except the template DNA. )
- Mix the reaction mixture thoroughly.
- Add template DNA to the individual PCR tube containing the reaction mixture.
- Program the thermal cycler according to the manufacturer’s instructions. A typical PCR cycling program is outlined in the following table.
- Place the PCR tubes in the thermal cycler and start the cycling program.
Frey, B. and Suppman, B. (1995). BioChemica. 2, 34-35.