Ribonuclease H, RNase H
LA Taq DNA Polymerase, Long PCR Polymerase
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High Fidelity Taq DNA Polymerase

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Taq Plus DNA Polymerase is a kind of High Fidelity Taq DNA Polymerase. mixture of Taq DNA Polymerase and proofreading DNA Polymerase, which allows for the amplification of long templates, up to 30kb, with high fidelity. The two enzymes act synergistically during PCR to generate more accurate and longer PCR products with greater yields compared to Taq DNA Polymerase alone. PCR products, amplified up to 10kb in length with Taq Plus DNA Polymerase, generate a mixture of blunt ends and single base (A) 3' overhang. The products can be used for direct T/A cloning, but its efficiency is not as high as PCR products amplified with Taq polymerase alone.

Taq Plus DNA Polymerase is a special formulation designed for amplify large fragment. The main component is Taq DNA Polymerase, and Pfu DNA Polymerase are added to enhance the efficiency of amplification reaction. Theoretically, Taq Plus produces significantly higher yields of PCR products than ordinary Taq Polymerase, especially for fragments >1kb, and can amplify up to 20kb. Taq Plus also contains a proofreading activity that reduces the error rate of Taq Polymerase. Most of the amplified DNA fragments have a 3´A overhanging. However, a small percentage of the amplified DNA fragments are blunt-ended. Taq Plus is suitable as a direct replacement for ordinary Taq Polymerase in most applications.


Long PCR (up to 20 kb), PCR cloning, RT-PCR etc.


High fidelity: with an error frequency of 1.6X10-6 during DNA synthesis.

Higher yield: Taq Plus increases the efficiency of polymerization reaction, resulting in a great percentage of extenuation reaction completion up to 20kb

Unit Definition

One unit of the enzyme catalyzes the incorporation of 10nmole of deoxyribonucleotides into a polynucleotide fraction in 30min at 74°C

Quality Control

No contaminating endonuclease or exonuclease activity detected. Functionally tested in PCR.

Concentration: 5u/µl


Storage Buffer: 20mM Tris-HCl, pH 8.0, 100mM KCl, 0.1mM EDTA, 5mM DTT, 50% glycerol, 0.5% NP40 and 0.5% Tween 20.

Storage: Store at -20°C

10X Reaction Buffer (Mg2+ Plus)

500mM KCl, 100mM Tris-HCl (pH 9.0 at 25°C) and 1% Triton X-100, 100mM (NH4)2SO4, 15mM MgCl2, PCR enhancer


PC07Taq Plus DNA Polymerase5U/μl, high fidelity

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