EvaGreen® dye is spectrally similar to FAM or SYBR® Green I, which means no change in optical settings is required for using an EvaGreen®-based master mix. However, there are several differences between the dyes.
Lower background fluorescence: EvaGreen® dye has less background than SYBR® Green I due to its novel “release-on-demand” DNA-binding mechanism.
Brighter and non-inhibitory: EvaGreen® is less inhibitory in the PCR reaction than SYBR® Green, permitting the use of saturating dye concentration for maximal signal and better high-resolution DNA melt analysis.
Safer and more environmentally friendly: EvaGreen® dye is the first and only PCR dye to date designed to be environmentally safe.
Dye stability: EvaGreen® dye is very stable both during storage and under PCR conditions. SYBR® Green I, on the other hand, is known to degrade following multiple freeze-thaw cycles and under PCR conditions. Moreover, decomposed SYBR® Green I is reported to be even more inhibitory to PCR.
Digital PCR: EvaGreen® dye is currently the only qPCR dye to be used in droplet digital PCR (ddPCR).
For most qPCR applications, we recommend using EvaGreen® Dye, 20X in water (31000), or one of our 2X EvaGreen® qPCR Master Mixes. EvaGreen® Dye, 2000X in DMSO (31019) is offered for specialized applications requiring a concentrated dye solution.
2X Forget-Me-Not™ EvaGreen® qPCR Master Mix is a ready-to-use high performance dye-based master mix for qPCR and DNA melt curve analysis. The 2X Master Mix contains EvaGreen® dye, premixed ROX, Cheetah™ HotStart Taq DNA Polymerase, dNTPs, and a low concentration of the Forget-Me-Not™ blue tracking dye.
Ready-to-use, just add primers and DNA template
Optimized with our superior EvaGreen® Dye which is more sensitive than SYBR® Green I and other commercial PCR dyes
Prevent wasted samples and other costly mistakes with our Forget-Me-Not™ light blue master mix
Premixed with ROX and optimized for instruments requiring either high or low concentrations of ROX reference dye
Formulated with Cheetah™ HotStart Taq for fast cycling protocols
Directly visualize amplification products in a gel
Forget-Me-Not™ Color Tracking
Catch pipetting mistakes and avoid wasting time, reagents, and your precious DNA samples. Forget-Me-Not™ EvaGreen® qPCR Master Mixes with premixed ROX, and has a light blue color so you can easily distinguish tubes/wells containing reaction mix from empty tubes/wells (Figure 1). This product is for users who wish to use single color tracking. We also offer Forget-Me-Not™ EvaGreen® qPCR Master Mix (2-Color Tracking) which allows color tracking of both master mix and template solution.
Peace of Mind Plus PCR Performance
Forget-Me-Not™ qPCR Master Mix is formulated for fast cycling PCR parameters, but can also be used with regular cycling protocols. Forget-Me-Not™ qPCR Master Mix performs as well as our Fast EvaGreen® Master Mix, and as well or better than Qiagen’s QuantiNova® SYBR® Green PCR Master Mix in a real-time PCR assay (Figure 2), while making it easy for you to make sure your reactions are set up correctly the first time, every time.
An environmentally friendly, non-mutagenic, and non-cytotoxic DNA-binding dye with features ideal for both qPCR and High Resolution Melt® (HRM) analysis (Ref. 3). EvaGreen® Dye binds to dsDNA via a novel “release-on-demand” mechanism in which the dye is in an inactive conformation until DNA is available. As DNA is produced during the PCR process, the dye shifts to an active conformation that binds DNA to emit fluorescence. As a result, EvaGreen® Dye can be used at a much higher dye concentration in qPCR than SYBR® Green I (Ref. 1). The dye has excitation and emission spectra very close to those of fluorescein (FAM) or SYBR® Green I, making it readily compatible with instruments equipped with the 488 nm argon laser or any visible light excitation with wavelength in the region. EvaGreen® amplification products can be directly detected on a gel without the need for another DNA gel stain.
Independent labs have confirmed that EvaGreen® dye is non-mutagenic, non-cytotoxic, and safe to aquatic life for direct disposal in the drain. Other commercial PCR dyes enter into cells in a matter of minutes. SYBR® Green I, for example, has been shown to be environmentally more toxic than ethidium bromide, a well-known mutagen (Ref. 2). For details, download the EvaGreen® Dye Safety Report.
Cheetah™ HotStart Taq DNA Polymerase is Biotium’s proprietary chemically-modified hotstart DNA Polymerase. Cheetah™ Taq is completely inactive at room temperature, and is fully activated after 2 minutes at 95°C, making it particularly suitable for fast cycling PCR protocols.
Forget-Me-Not™ EvaGreen® qPCR Master Mix with Premixed ROX is available in two formulations: a low ROX master mix (~50 nM final ROX concentration in assay) and a high ROX master mix (~500 nM final assay concentration). ROX is required as a passive reference dye in some qPCR systems to compensate for well-to-well optical variations. Refer to the table below for the passive dye requirements of real-time PCR instruments.
EvaGreen Dye and Cheetah Taq are covered under US and international patents. QuantiNova is a registered trademark of Qiagen Group. SYBR is a registered trademark of Thermo Fisher Scientific. HRM is a registered trademark of Idaho Technologies, Inc./BioFire Defense, LLC; the use of HRM may require a license.