UltraTaq DNA Polymerase

Biocrede Inc.

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Product Description

Looking to improve your routine PCR? UltraTaq DNA Polymerase is the new standard. With outstanding PCR yield, exceptional fidelity and high processivity, Biocrede’s UltraTaq DNA Polymerase is a versatile enzyme ideal for all PCR applications. With this superior enzyme, you can consolidate all PCR protocols and reactions into one efficient system.

With Biocrede’s UltraTaq DNA Polymerase, you can expect

  • High-speed PCR without compromising accuracy
  • High-processivity to reduce reaction time by 70%
  • Robust and high yield across a wide range of templates
  • Efficient amplification of DNA templates up to 15kb


Form Enzyme supplied with 5X buffer, MgSO4 and 5X GC Enhancer
Picture 1

Ultrataq DNA Polymerase successfully amplifies genomic template up to 15.6 kb.

Picture 2

 DNA Polymerase Enzyme Selection Guide 

Polymerase Target
Extension Speed
(Per min.)
(vs. Taq)
Proofreading MasterMix
Ultrataq 15 kb 3-4,000 bp 50x
Exactitaq 6 kb 1,000 bp 60x
Taq 6 kb 1,000 bp 1x
Taq Plus 6 kb 1,000 bp 5x
Taq Express 12 kb 4-6,000 bp 10x
Hottaq 6 kb 1,000 bp 1x
Infinitaq 11 kb 4-6,000 bp 10x
Hawkeye 20 kb 3-4,000 bp 1x
Hemotaq 1 kb 1,000 bp 1x
Protocol Click To Open
Concentration 5 U/μl
Storage Store all components at -20 °C.
Notes This product is distributed for laboratory research only.
Caution: Not for diagnostic use .


How can I optimize the reaction for multiplexing?

The polymerase and Mg concentrations need to be optimized in multiplexing and this will need to be evaluated per case by the end user. Primer concentrations for each amplicon in multiplexing would also need to be optimized. The general rule would be lowering the primer concentrations of the strongly amplified targets and increasing the primer concentrations of the weakly amplified targets.

Is Ultrataq DNA Polymerase compatible with Uracil?

Ultrataq DNA polymerase is unable to incorporate dUTP and read through uracil present in DNA templates.

If no amplification products are obtained, what parameters should be considered first when troubleshooting?

First, rerun PCR paying attention that all PCR components are functional and added in the proper volume.

If there is still no product the PCR conditions might be too stringent and should be changed as follows:

  • Lower the annealing temperature in 1 degree increments.
  • Increase the extension time.
  • Increase the amount of template added.

The next most common reasons for PCR failure are the presence of PCR inhibitors in the template DNA and a template or amplicon that is G-C rich. These problems can be mitigated by diluting the template and the addition of our GC enhancer in increments of 1 ul per 50 ul reaction if the target amplicon is G-C rich. 

If none of these troubleshooting techniques resolve the issue then the quality or design of the primers might be the problem.  Try using different amounts of primer in solution or reordering/ redesigning new primers and re-amplifying the amplicon.

Does this enzyme have terminal transferase activity (i.e. adds an A at the end of the PCR product)?

No, all high fidelity polymerases will not have this feature. If you would like to do T/A cloning on ultrataq PCR products, you can clean up the UltraTaq PCR reaction first, then mix the cleaned-up ultrataq PCR product with Taq/PCR buffer/dNTP, and incubate it for 15-30 mins. The Taq will add the dA overhangs onto the bestaq PCR products.

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About Us

Biocrede MLSIC


Biocrede was established in June of 2012 (Ann Arbor, MI, USA) and is dedicated to transforming lives via innovative biomed-tech solutions that restore health, extend life, and reduce hospitalization length for all types of patients in the world, via comprehensive research, design, development, manufacturing and customer service in the eyes of our customers, employees, competitors, and healthcare communities.  We are currently focusing on life sciences products to deliver custom viral vectors, pcr, diagnostics tools, and the research, development and commercialization of next generation medical solutions.



We believe our responsibility priority is to doctors, nurses, and patients, and thus we develop solutions, supply products, and provide services with high quality and ethics.  We are responsible to our employees, and it is our desire to see every employee achieve their highest potential by striving to provide career counseling, appropriate training, job required education, and guidance with respect, dignity and merit recognition.  We strive to play an integral role in to the society and the communities we live by creating value to help people globally have healtheir and more fulfilling lives, and make decisions that protect the environment and natural resources in the world. Our final responsibility is to our stockholders by making the business profitable.