OptiTaq DNA Polymerase
OptiTaq DNA Polymerase. A mixture of stable thermophilic DNA polymerases capable of generating PCR products up to 20 kb with high fidelity; suitable for applications requiring high-temperature synthesis of DNA.
Description
- OptiTaq DNA Polymerase is a modified and optimized thermostable enzymes blend containing Thermus aquaticus DNA polymerase and Pyrococcus sp. DNA polymerase.
- Ultrapure, recombinant enzymes are used to prepare OptiTaq DNA Polymerase.
- The enzymes blend exhibits the 3'→5' proofreading activity, resulting in considerably higher PCR fidelity and processivity than possible with unmodified Taq DNA polymerase (1).
- Enables increased amplification product yield in comparasion with Taq DNA polymerase over wide range of PCR products.
- Maintains the 5'→3' exonuclease activity.
- Adds extra A and the 3' ends.
- Suitable for multiplex PCR as it exhibits 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.
- 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-HCI (pH 8.0 at 22°C)
100 mM KCI
0.5% Tween™20
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 Bufer B (general application, up to 20 kb):
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 single- 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, 3546.
- Chien, A., Edgar, D.B. and Trela, J.M. (1976) J. Bacteriol. 127, 1550.
- Kaledin, A.S., Sliusarenko, A.G. and Gorodetskii, S.I. (1980) Biokhimiya 45, 644.