YALEPIC^® Hot-Start High-Fidelity PCR Master Mix (Max)

Yes. The optimized reaction buffer system effectively enhances amplification of high GC content templates. The product has good tolerance for complex templates and samples containing inhibitors.

Troubleshooting steps: Check template quality – verify DNA is not degraded or impure by electrophoresis, use high-quality template from kit extraction. Check primer design – ensure no secondary structures or dimers, recommended length 22-35 mer, Tm >60 degrees C, GC 45-60%. For long fragments, primer length 25-35 mer, Tm >=65 degrees C. Check reaction setup – ensure all components added and mixed; reagents fully dissolved. Optimize annealing temperature – try gradient 55-68 degrees C. Increase cycles by 5-10. Check thermal cycler – verify program, lid and block temperatures.

Non-specific amplification causes and solutions: Low annealing temperature – increase appropriately or use Touchdown PCR. Poor primer specificity – optimize design, BLAST verify. High primer concentration – reduce to 0.2-0.5 microM. Excessive or impure template – reduce amount, use high-quality purified template. Too many cycles – reduce to 25-30 cycles.

YALEPIC NovaAlign Ultra HiFi MasterMix produces blunt-ended PCR products because the enzyme has 3′ to 5′ exonuclease (proofreading) activity and does not add A overhangs like Taq polymerase. Blunt-end products can be used directly with blunt-end cloning vectors. For TA cloning, perform A-tailing on the PCR product before ligation with T-vector.

Dye-free version (YEM51008-A): no electrophoresis indicator dye, suitable for PCR products requiring further purification (digestion, ligation, sequencing). Dye-containing version (YEM51008-B): pre-mixed with electrophoresis tracking dye, allowing direct gel loading after PCR without additional Loading Buffer, simplifying workflow for high-throughput screening and rapid detection. Choose dye-free for downstream experiments (cloning, sequencing) and dye-containing for rapid PCR product detection.

Storage: -20 degrees C long-term. Transport: below 0 degrees C (dry ice or ice packs). Avoid repeated freeze-thaw; tested for 30 freeze-thaw cycles without significant performance impact. For frequent short-term use, store at 2-8 degrees C. Aliquot after first use to minimize freeze-thaw cycles.

YALEPIC NovaAlign Ultra HiFi MasterMix has good tolerance to PCR inhibitors. Compared to regular Taq, it has stronger tolerance to common blood PCR inhibitors and can directly use crude sample lysate as template, simplifying sample pre-processing. For samples with many inhibitors, reduce sample input or perform simple dilution.