Taq DNA Polymerase: High-quality enzyme for PCR.

Taq DNA Polymerase: High-quality enzyme for PCR.

Applications

  • Routine PCR up to 5 kb under common and fast conditions.
  • RT-PCR, colony PCR,TA cloning.
  • Library construction, genotyping, screening.

Benefits

  • High yields in routine PCR and under fast cycling conditions
  • Robust performance under variety of conditions.
  • Excellent performance on complex (GC rich) templates.

€275.50*

Product sizes
1500 units
€275.50*
3000 units
€494.50*

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Selected Catalog #: PCE0201
Product information "Taq DNA Polymerase"

highQu Taq DNA Polymerase is the classical enzyme for routine PCR applications providing high amplification yields of 3-5 kb targets under various conditions. Taq DNA Polymerase is purified from a recombinant E. coli strain carrying the Taq DNA polymerase gene.

Taq DNA polymerase is thermostable 5´ → 3´ DNA polymerase. It lacks 3´ → 5´ exonuclease (proofreading) activity and has low 5´ → 3´ exonuclease activity. Polymerase exhibits deoxynucleotidyl transferase activity resulting in A-overhang at the 3'-ends of PCR products and allowing for TA cloning. The PCR accuracy of Taq DNA Polymerase is 4.5 x 104 (a number of incorporated nucleotides before the first error occurs).
The supplied reaction buffer for most flexibility in optimization, contains no dNTPs and no magnesium. The 50 mM MgCl2 solution is provided separately what allows for magnesium optimization starting from 1 mM up to 4 mM final concentration upon the need. The dNTPs in sets or mixes can be purchased from highQu separately.

The most widely used PCR enzyme is the DNA polymerase from Thermus aquaticus. Taq DNA polymerase amplifies template DNA by adding nucleotides to the 3' end of a DNA strand in a template-dependent manner where short single-stranded primers that anneal to the template provide a starting point for polymerization.

The enzyme has a 5' - 3' polymerase activity and lacks 3' - 5' exonuclease or so-called proofreading activity. For optimal performance, Taq DNA polymerase requires not only template DNA and reverse and forward primers, but also such essential PCR reaction components as deoxyribonucleotide triphosphates (dNTPs), and magnesium chloride. Optimized buffers commonly supplied with commercial Taq Polymerase enzymes contain certain salt concentration and have balanced pH value.

Taq DNA polymerase has several other advantageous properties over other enzymes used for the PCR. It is known for a high stability and resistance to PCR inhibitors. The inhibitor resistance allows performing direct PCR reactions from crude non-purified templates, such as colony PCR. At highQu, Taq DNA Polymerase is either available as a stand-alone enzyme supplied with a ALLin™ Buffer, or as a convenient 2X concentrated master mix formulation.

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