Perpetual OptiTaq DNA Polymerase
Perpetual OptiTaq DNA Polymerase. A mixture of thermostable Taq DNA Polymerase, proofreading Pyrococcus sp. DNA Polyermase, anti-Taq DNA Polymerase antibodies for automatic "hot start" PCR. The blend generates products up to 20 kb with stringent amplification specificity, sensitivity, fidelity, and yield.
Description
- Perpetual OptiTaq DNA Polymerase is a modified and balanced blend containing top quality Thermus aquaticus DNA Polymerase, Pyrococcus furiosus DNA Polymerase, anti-Taq DNA Polymerase antibodies, reversible inhibitors and enhancers.
- Ultrapure, recombinant proteins are used to prepare Perpetual OptiTaq DNA Polymerase.
- Our carefully selected anti-Taq antibodies have high thermal stability, providing protection against non-specific primer extension from room temperature to 70°C.
- The polymerase activity is restored during the initial denaturation step when amplification reactions are heated at 92-95°C for two minutes.
- Formation of inactive complexes between Taq DNA Polymerase and an anti-Taq antibody forms a basis for automatic "hot start" PCR, which allows for the assembly of PCR reactions at room temperature.
- High stability of the complexes allows for the enormous increase of PCR specificity, sensitivity and yield in comparison to the conventional PCR assembly method.
- Automatic "hot start" PCR is a convenient method when assembling multiple PCR reactions, saving time and reagents.
- Clean and safe laboratory practice assured, due to removed necessity to open hot tubes.
- The blend catalyzes the polymerization of nucleotides into duplex DNA in the 5'→3' direction in the presence of magnesium ions and exhibits the 3'→5' proofreading activity, resulting in considerably higher PCR fidelity than possible with unmodified Taq DNA polymerase (1).
- Enables increased amplification product yield in comparison with Taq DNA polymerase over wide range of PCR products.
- Maintains the 5'→3´ exonuclease activity.
- Adds extra A at the 3' ends.
- Suitable for multiplex PCR due to increased specificity, wider tolerance for Mg2+, salts concentration, and pH (2,3).
- Improves PCR results with critical templates, such as containing GC-rich regions, palindromes or multiple repeats.
- Perpetual OptiTaq DNA Polymerase is recommended for use in PCR and primer extension reactions at elevated temperatures to obtain a wide range of DNA products up to 20 kb.
Storage Buffer
20 mM Tris-HCL (pH 8.0 at 22°C)
100 mM KCI
0.5% Igepal CA-630
0.1 mM EDTA
1 mM dithiothreitol
50% glycerol
10X Reaction Buffers
10X Pol Buffer A (optimization buffer without MgCl2)
The buffer allows to optimize MgCl2 concentration.
10X Pol Buffer B (general application without MgCl2)
The buffer contains 15 mM MgCl2 and is optimized for use with 0.2 mM of each dNTP.
10X Pol Buffer C (colored)
10X Pol Buffer B enriched with two gel tracking dyes and a gel loading reagent. The buffer enables direct loading of PCR products onto an agarose gel.
Quality Control
All preparations are assayed for contaminating endonuclease, 3'-exonuclease, and nonspecific singe- and double-stranded DNase activities. Typical preparations are greater than 95% pure, as judged by SDS polyacrylamide gel electrophoresis.
- Cline, J., Braham, J. and Hogrefe, H. (1996) Nucleic Acids Res. 24, 3545.
- Chien, A., Edgar, D.B. and Trela, J.M. (1976) J. Bacteriol. 127, 1550.
- Kaledin, A.S., Silusarenko, A.G. and Gorodetskii, S.I. (1980) Biokhimiya 45, 644.