Unlocking qPCR Sensitivity: Overcoming Dye-Based Inhibition
Discover how the next-generation IC Green dye delivers unparalleled accuracy, enhanced sensitivity, and robust amplification for your most critical gene expression studies.
The Intercalating Dye Dilemma
The Problem with SYBR® Green
For years, dye-based qPCR has relied heavily on SYBR® Green I. While cost-effective, this traditional dye comes with a significant biological drawback: it inherently inhibits Taq DNA polymerase (https://doi.org/10.1016/S0165-022X(99)00033-0).
Because standard dyes inhibit the amplification process, researchers are forced to compromise. High dye concentrations cause total reaction failure, while low concentrations result in a weak fluorescent signal that makes detecting low-copy genes nearly impossible. This balancing act often leads to delayed Quantification Cycles (Cq) and reduced assay reliability.
Symptoms of Dye Inhibition:
- Delayed Cq Values: Target detection happens later than it should.
- Lost Sensitivity: Low-abundance transcripts are lost in the background noise.
- Reaction Inconsistency: Variable amplification curves across replicates.
The FastGene IC Green Advantage
The FastGene 2x IC Green Universal qPCR Mix utilises an entirely newly developed intercalating dye that does not inhibit the PCR reaction, allowing for a fundamental leap in performance.
Zero Inhibition
Because IC Green does not inhibit Taq polymerase, it can be used at higher concentrations. This yields a massive increase in fluorescent signal strength without stalling amplification.
Earlier Cq Values
Experience greater sensitivity. IC Green consistently produces lower (earlier) Cq values compared to traditional SYBR® Green mixes, ensuring you detect your targets sooner and more reliably.
Universal Compatibility
Supplied with a separate ROX reference dye, this mix is universally compatible with any real-time PCR instrument, supporting both standard and fast cycling protocols.
Target: hGAPDH
Target: hTie1
Comparison of FastGene® IC Green (black & red) with the market leading competitors KB (green) and T (blue). The differences of the CT-values were under 1 cycle.
The data speaks for itself: FastGene IC Green delivers robust amplification and higher peak fluorescence compared to competitors.
Optimise Your Entire qPCR Workflow
The most sensitive qPCR mix demands equally robust upstream preparation and downstream analysis. Combine IC Green with Geneflow’s premium portfolio for flawless results.
1. cDNA Synthesis
Ensure maximum template availability before amplification. The FastGene Scriptase family converts RNA to cDNA with incredible efficiency.
3. Detection
Read your brilliant IC Green signals with precision or verify products on the FAS-X System.
Stop Settling for Inhibited PCR Data
Upgrade to FastGene 2x IC Green Universal qPCR Mix today and experience the clarity of truly uninhibited amplification.