Home New Customer? Create Account
Member Login:

DNA Polymerase/Master Mixes

25181 - i-pfu DNA Polymerase (High Fidelity), 250u


Starting at: $196.00

Please Choose:

Shipping Option

Enter Quantity:

i-pfu DNA Polymerase is a typical heat-resistant proof-reading enzyme with 3 '→ 5' exonuclease activity. It has high fidelity and guarantees an error rate of 1x10-6 (one error rate per 13,000 base pairs). The proofreading activity of i-pfu DNA Polymerase allows PCR products with more accurate base sequences to be obtained than when using Taq DNA Polymerase. When using i-pfu DNA Polymerase, DNA fragments longer than Taq DNA Polymerase (up to 30 kb) can be amplified. Because of these properties, i-pfu DNA Polymerase is widely used in experiments in which high accuracy is required, such as gene cloning and expression. Unlike Taq DNA Polymerase, this i-pfu DNA Polymerase produces blunt-end amplification products.

Sensitivity Comparison

Figure 1: To compare the sensitivity of i-pfu DNA Polymeras with similar products from Company A and B, 1 Kb and 4.5 Kb fragment primers were diluted by template concentration and amplified. i-pfu DNA Polymeras showed excellent sensitivity even at lower template concentrations compared to other products with the same function.

[ Panel A ] 1 Kb amplification(λDNA) Lane M, 1 Kb DNA Ladder; lane 1, 200 pg λDNA; lane 2, 100 pg λDNA; lane 3, 50 pg λDNA; lane 4, 25 pg λDNA; lane 5, 12.5 pg λDNA; lane 6, 6.25 pg λDNA; lane 7, 3.125 pg λDNA; lane N, negative control [ Panel B ] 4.5 Kb amplification(TopoXL/5F) Lane M, 1 Kb DNA Ladder; lane 1, 50 ng DNA; lane 2, 10 ng DNA; lane 3, 2 ng DNA; lane 4, 400 fg DNA; lane 5, 80 fg DNA; lane 6, 16 fg DNA; lane 7, 3.2 fg DNA; lane N, negative control


  • High accuracy makes it possible to amplify long DNA templates 
  • PCR products have more accurate bases 
  • Low error rate of 1x10-6
  • Used in blunt-end Cloning
  • Ideal for experiments requiring high accuracy such as gene cloning and expression


  • General PCR
  • Blunt Cloning
  • Template amplification for DNA sequence analysis


  • i-pfu DNA Polymerase (2.5 U/ml), 250 units
  • 10× PCR Buffer (with 15 mM Mg2+), 1ml
  • 10× Mg2+-free PCR Buffer, 1ml
  • 10mM dNTPs (2.5 mM/each), 500μl 
  • 25mM Mg2+, 1ml