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Read The Zymo Research PromiseZymoScript One-Step RT-qPCR Kit
Cat # | Name | Size | Price | Quantity |
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Highlights
- Fast: Complete cDNA synthesis and robust amplification in as little as 1.5 hours
- Flexible: Compatible with both SYBR-Green and TaqMan Probe-based assays
- Efficient: Superior performance compared to competitor RT-qPCR kits
Documents
- How to Design Primers
- How to Extract RNA From TRIzol
- Top RNA Isolation Tips
- This product can be used as a building block for molecular tests (e.g., for SARS-CoV-2 detection) and for research applications.
Product Description
Technical Specifications
Amplicon Length | This product performs best with amplicons between 50 bp and 1.5 kb |
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Equipment | thermal cycler/qPCR instrument |
Ideal Uses | high-throughput applications, multiplex diagnostic assays based on RNA targets, routine quantification of specific targets in multiple samples |
Processing Time | as little as 1.5 hours |
Reagents | Complete and ready-to-use Reaction Buffer (4X) and Enzyme Mix (20X). Fluor Dye (20X) included for SYBR-Green based detection. MgCl2 included to supplement the magnesium concentration if needed. |
Sample Source | 0.1 pg - 5µg RNA input |
Size | 100 reactions |
Storage | Store at -20 °C. Minimize exposure to light. |
Resources
Q1: What is the minimum/maximum amount of RNA template I should use?
The amount of total RNA required may vary depending on the expression level of the target transcripts. In general, we recommend using 0.1 pg - 5 µg of input RNA.
Q2: Will the blue tracking dye interfere with qPCR fluorophore channels and affect the signal of probe/fluorescent dyes?
The dye used in the ZymoScript One-Step RT-qPCR Kit has been thoroughly tested in downstream analysis. At the provided concentration, it will not affect fluorescent signal readings during qPCR.
Q3: How is the performance of the ZymoScript One-Step RT-qPCR kit with low-quality RNA samples?
Lower signal can be expected with degraded and impure RNA samples. We recommend using Quick-RNA or Direct-zol Kits (see Related Products) for high quality RNA extraction.
Q4: RT-qPCR signal is not detected, or it is detected at higher Ct than expected. What should I do?
A possible reason for missing or delayed amplification is inefficient primer binding to the template. Make sure to use an annealing temperature (step 4 in the protocol provided) at least 2°C below the lowest melting temperature of the primers to ensure efficient binding to the target sequence.
Q5: Can I assemble the RT reaction at room temperature?
Yes, the reaction can be assembled at room temperature. The enzymes are only activated at higher temperatures, ensuring maximum specificity.
Q6: Can I store the ZymoScript One-Step RT-qPCR kit at Room Temperature or 4°C?
We do not recommend storing the kit or kit components at room temperature for prolonged periods of time. The kit can be stored at 4°C for up to 1 week.
Q7: How can I ensure that there is no genomic DNA contamination in my RT reaction?
Samples can be treated with DNase I to eliminate DNA contamination. DNase I is included in the Quick-RNA or Direct-zol Kits recommended for RNA extraction. Alternatively, the DNase I set (see Related Products) can be purchased separately.
Q8: Do I need to add RNase inhibitors?
No, RNase inhibitors are already included in the enzyme mix to prevent unwanted RNA degradation during reverse transcription.
Q9: Should I use SYBR Green or a TaqMan probe-based assay?
For single target detection, SYBR Green based assays offer a more affordable solution. For SYBR Green based assays, add 1 µl of Fluor Dye solution (20X) to each 20 µl RT-qPCR reaction. TaqMan probe-based assays are in general more expensive than SYBR Green based assays. However, they present an advantage when multiple targets are analyzed simultaneously and when a superior level of specificity is required. Do not add Fluor Dye solution to the RT-qPCR reaction when performing TaqMan probe-based assays.
Q10: What fluorophores are recommended for TaqMan probe-based assays?
In general, any commonly used fluorophore (including HEX, VIC, Cy3, Texas Red, Cal Red 610, Quasar 670, Cy5, Cy5.5, and Quasar 705) is compatible with this kit with the exception of FAM fluorophore, which is unstable in our buffer system. Instead, we recommend using Alexa Fluor™ 488, which has overlapping excitation and emission spectra with FAM, but greater stability.
Q11: Which channel should be activated when using the Fluor Dye solution?
The Fluor Dye has the same excitation and emission properties as SYBR Green. Activate the SYBR/FAM channel for detection when using the Fluor Dye.
Q12: Does ZymoScript One-Step RT-qPCR contain a passive reference dye?
No, a passive reference dye is not included.
Q13: What is the amplicon length that can be achieved using the ZymoScript One-Step RT-qPCR Kit?
This depends on different factors, including RNA integrity and primer efficiencies. Generally, this product performs the best with amplicons with a length between 50 bp and 1.5 Kb.
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