Merck™ Novagen™ KOD DNA Polymerase KOD DNA Polymerase DNA Polymerases PCR Reagents and Kits. Shop online for a wide selection of EMD Millipore Novagen KOD Hot Start DNA Polymerase For PCR amplification of long strand and GC-rich DNA templates. Novagen Material Number: Kit Batch Number: D Components: 1 x units KOD Hot Start DNA Polymerase (1 unit/μl). 1 x ml 10X Buffer.

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And finally, koe the application space for PCR technology is huge, with cloning representing only a small fraction, enzymes other than those studied here need to be compared and evaluated based on project-specific needs and challenges.

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EMD Millipore™ Novagen™ KOD XL DNA Polymerase – ZAGENO

The lower error rate seen with AccuPrime- Taq most likely arises from the GB-D polymerase editing mistakes introduced by Taq polymerase as opposed to enhanced processivity since increased processivity has been shown to have no significant effect on base substitution errors [ 2227 ].

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Given the costs of cloning and sequencing and finite research budgets, mutation detection by DNA sequencing of clones generates a relatively small data set of mutations when the enzyme fidelity is high. Our goals are to compare fidelity values derived from direct clone sequencing to those derived from screening-based methods, as well as to evaluate these results in the context of choosing an enzyme for a high-throughput cloning project.

Amplification efficiency was measured by quantitation of PCR product using a dsDNA-specific dye and calculating the fold-amplification based on a known quantity of input DNA template.


In the present study, we find that the mutation spectrum for KOD polymerase is similar to the other B-family polymerases Pfu, Pwo, and Phusion assayed here. We included Taq polymerase in our study because of the extensive body of literature that exists on the fidelity properties of this enzyme. In addition, primer polymerasf during setup at room temperature due to exonuclease activity is effectively inhibited.

All enzymes and reaction buffers were from commercial sources: The plate was immediately submitted to an outside vendor Quintarabio, Berkeley, CAand after growth overnight sequencing was performed on amplified DNA from each clone. Price Available on request. All values are given polmerase Taq as the reference 1x.

Back Alpha Aqualine Shaking. We have measured the error jovagen for 6 DNA polymerases commonly used in PCR applications, including 3 polymerases typically used for cloning applications requiring high fidelity. Each troubleshoot lists the potential problem, cause, and solution; enabling full comprehension of any errors and the required steps to fix them.

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Nonetheless, it is often difficult to make direct comparisons among different enzymes due to numerous methodological and analytical differences from study to study. As reported in Table 2amplification efficiency values were fairly uniform for all samples within a plate. Other factors need to be considered of course, such as amplification efficiency, mutation spectra, performance with high GC content templates, and cost, to name a few.

Cloning of target s then typically resulted in further refinements of pathway details and often identification of new cloning targets. For the study on Pfu error rate, several fundamental methodological differences are present: This method was facilitated by optimizing the PCR reaction to produce a single product band Figure 1.


Furthermore, biological observations no longer necessarily precede target identification, which now is often driven in large part by bioinformatics-based predictions and analyses. Back Disposable Glass Quartz. There are a variety of methods to assay the fidelity of a DNA polymerase.

With the rapid pace of developments in systems biology-based research, for example, genomics, proteomics, and metabolomics, larger-scale biological discovery projects are polymerasd more common. This is consistent with previous findings demonstrating very high fidelity PCR amplification for these enzymes. The large difference between these two results, which are from the same research group, serves to highlight the difficulties in making comparisons between studies where there are significant methodological differences.

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KOD Hot Start DNA Polymerase U NOVAGEN (Store at degrees C) – Lab Supply

With the creation and continual refinements of databases of genomic sequences, cloning now often takes place on a much larger scale. Hillson for critical reading of the paper. The slight error frequency value differences are probably not significant, given that the small number of mutations is produced by these high fidelity polymerases in addition to the experimental variability discussed above for hovagen results with Taq. Based on minimizing Pklymerase errors, Pfu polymerase, Pwo polymerase, and Phusion all produce acceptably low levels of mutations.