YALEPIC® UR SYBR Green qPCR MasterMix

YALEPIC UR uses a dual-species antibody-based hot-start DNA polymerase with stricter low-temperature blocking, combined with an enhanced buffer optimized for low-copy templates, effectively inhibiting non-specific amplification and primer-dimer formation. Compared to conventional qPCR master mixes, this product is particularly suitable for accurate quantification of low-abundance target genes and amplification of high GC content complex templates, with outstanding performance in sensitivity and amplification specificity, and better data reproducibility.

Antibody-based hot-start DNA polymerase uses specific antibodies to bind Taq enzyme, blocking polymerase activity at low temperatures (e.g., room temperature to 55 degrees C). The antibody only denatures and releases active enzyme when the PCR reaction enters the high-temperature denaturation phase (typically >=90 degrees C). This mechanism significantly inhibits primer-dimer and non-specific amplification that may occur during the initial setup phase, markedly improving detection specificity and amplification efficiency. It is particularly suitable for low-copy template and high-sensitivity detection experiments, effectively enhancing data accuracy and reliability.

YALEPIC UR SYBR Green qPCR MasterMix is supplied with dual independent tubes of ROX Reference Dye. Users can add ROX according to their qPCR instrument model requirements – if the instrument requires ROX correction (such as ABI 7500, StepOnePlus, etc.), add the recommended amount; if the instrument does not require ROX correction (such as Bio-Rad series, etc.), add ddH2O directly. The dual independent ROX design ensures comprehensive compatibility across different instrument brands.

Yes. YALEPIC UR has undergone deep optimization of buffer system and enzyme formulation specifically for low-copy template detection, effectively improving amplification efficiency and detection sensitivity for low-abundance templates. It maintains good linearity and reproducibility over a dynamic range of 6 orders of magnitude. Even for low-expression samples with high Ct values, stable and reliable quantitative results can still be obtained, particularly suitable for clinical samples, rare cells, and viral load analysis in low-abundance detection scenarios.

For low-abundance target genes with high Ct values (Ct > 32), the following optimization strategies are recommended: (1) Select a high-sensitivity qPCR master mix, such as YALEPIC UR SYBR Green qPCR MasterMix; (2) Optimize primer design and reaction conditions to ensure primer specificity and amplification efficiency; (3) Appropriately increase template input; (4) Ensure regular calibration and temperature accuracy of qPCR instruments; (5) Use nuclease-free water and consumables to prevent exogenous nucleic acid contamination. This product, with the dual assurance of antibody-based hot-start enzyme and low-copy optimized buffer, can effectively improve detection sensitivity for low-abundance targets. Combined with the above strategies, more ideal quantitative data can be obtained.

YALEPIC UR SYBR Green qPCR MasterMix has undergone specific buffer formulation optimization for high GC content templates, effectively reducing amplification difficulties and abnormal melt curve peak shapes caused by high GC content. This product has been successfully applied to qPCR detection of various high GC content special genes and promoter regions, with single sharp melt curve peaks for amplification products. Amplification efficiency and specificity meet research requirements.

YALEPIC UR SYBR Green qPCR MasterMix uses a high-specificity antibody-based hot-start enzyme that effectively inhibits non-specific product formation, which is significant for SNP genotyping experiments that depend on amplification specificity. Combined with high-resolution melt curve analysis or allele-specific quantification methods, precise SNP identification and allele frequency analysis can be achieved.

For long-term storage, this product should be sealed and stored at -20 degrees C protected from light, with a shelf life of 24 months. After thawing, if short-term use is needed, it can be stably stored at 4 degrees C protected from light for 1 month. However, avoid repeated freeze-thaw (aliquoting is recommended to reduce freeze-thaw cycles). Because the product contains SYBR Green I fluorescent dye, storage and handling should be protected from light throughout to prevent fluorescence signal attenuation.

SYBR Green I is a double-stranded DNA intercalating fluorescent dye that emits minimal fluorescence when free in solution. Upon binding to PCR amplification product double-stranded DNA, the fluorescence signal increases hundreds-fold. The qPCR instrument achieves accurate quantification of target DNA by monitoring fluorescence intensity in real time for each cycle. This product has pre-mixed the optimal concentration of SYBR Green I. Before use, note: (1) Gently and thoroughly mix the MasterMix (vigorous vortexing produces bubbles leading to inaccurate reaction volumes); (2) Store and handle in the dark to prevent fluorescence signal attenuation; (3) Design high-specificity primers to reduce the impact of non-specific amplification and primer-dimers on detection results; (4) After the experiment, melt curve analysis is recommended to verify product specificity.

When amplification abnormalities occur, follow these troubleshooting steps: (1) Verify that the master mix is fully thawed and mixed (briefly centrifuge and gently pipette to mix); (2) Check primer design and concentration optimization (recommended primer length ~25 bp, Tm 60-65 degrees C, amplicon ~150 bp); (3) Check template quality and input amount; (4) Confirm qPCR instrument temperature calibration and inter-well consistency; (5) Use freshly prepared primers and nuclease-free water to rule out exogenous contamination. YALEPIC UR has undergone multiple formulation optimizations to effectively reduce non-specific background and improve amplification curve quality.