MyTaq™ HS Mix is recommended for PCR assays containing complex and low copy number targets as well as multiplex PCR. MyTaq HS Mix is comprised of MyTaq HS DNA Polymerase and a novel buffer system that deliver very high yield PCR amplification over a wide range of PCR templates. MyTaq HS has an increased affinity for DNA, enabling reliable amplification from even very low amounts of template. MyTaq HS has been developed to give more robust amplification than other commonly-used polymerases allowing it to perform well with challenging templates and in the presence of PCR inhibitors. Furthermore, the highly efficient nature of MyTaq HS means it gives excellent results under fast PCR conditions. MyTaq HS does not possess polymerase activity during the reaction set-up, thereby reducing the non-specific amplification that can hinder PCR assays from the start.
The product is supplied as a mastermix that requires the addition of only template, primers and water, thereby reducing the number of pipetting steps during PCR set-up for improved speed, throughput and assay reproducibility. The inclusion of dNTPs, MgCl2 and enhancers at optimal concentrations, helps eliminate the need for optimization, thereby saving time and ensuring comparable efficiencies for annealing and extension of all primers in the reaction, this makes MyTaq HS Mix ideal for multiplex PCR.
MyTaq HS Mix, 2x
4 x 1.25 mL
20 x 1.25 mL
All components are shipped on dry/blue ice and should be stored at -20°C upon receipt for optimum stability. Repeated freeze/thaw cycles should be avoided. When stored under the recommended conditions and handled correctly, full activity of the reagents is retained until the expiry date on the outer box label.
Components may also be stored at +4°C if required, although storage at -20°C is recommended. When stored at +4°C, reagents will remain stable for a period of 2 weeks from date of receipt.
|No or low PCR yield||Enzyme concentration too low – increase the amount of enzyme in 0.5 U increments.|
|Primers degraded – check quality and age of the primers.|
|Magnesium concentration too low – increase concentration in 0.25 mM increments with a starting concentration of 1.75 mM.|
|Primer concentration not optimized. Titrate primer concentration (0.3-1 µM); ensuring that both primers have the same concentration.|
|Template concentration too low – Increase concentration of template.|
|Perform a positive control to ensure that the enzyme, dNTPs and buffers are not degraded and/or contaminated.|
|Multiple Bands||Primer annealing temperature too low. Increase annealing temperature. Primer annealing should be at least 5°C below the calculated Tm of primers.|
|Prepare master mixes on ice or use a heat-activated polymerase.|
|For problems with low specificity. Try adding 3% DMSO (not supplied) to improve specificity.|
|Smearing or artifacts||Template concentration too high. Prepare serial dilutions of template.|
|Too many cycles. Reduce the cycle number by 3-5 to remove non-specific bands.|
|Enzyme concentration too high - decrease the amount of enzyme in 0.5 U increments.|
|Extension time too long. Reduce extension time in 0.5-1 minute increments.|