EGFP saRNA (5mCTP)
Enhanced green fluorescent protein (EGFP) is a common reporter gene that emits an intense and bright green fluorescence, with a maximum excitation/emission wavelength of 488 nm /509 nm, respectively.
Self-Amplifying RNA(saRNA) usually has the advantages of high protein expression, long duration, and low dose use due to its ability to self-replicate within the cell. EGFP saRNA is based on the replication mechanism of Venezuelan equine encephalitis virus (VEEV)，providing a concentration of approximately 1 mg/mL with Cap1 structure. There are currently two ways to cap mRNA: One is co-transcription method, by adding Cap analogues into the transcription process. The other is enzymatic Capping. After transcription, Cap0 capping is performed by Vaccinia virus Capping Enzyme (VCE), GTP and S-adenosylmethionine (SAM). The Cap0 is then generated into the Cap1 through 2´-O-Methyltransferase and SAM. Cap1 Capping can also be performed by adding VCE, 2´-O-Methyltransferase, GTP and SAM in a one-step process. Cap 1 structure is more ideal for mammalian systems and possess higher transcription efficiency than Cap 0 structure. The addition of 5mCTP and poly (A) tail increases the stability and lifetime of the mRNA in vitro and in vivo. Poly (A) tail also plays an important role in enhancing the efficiency of translation initiation. EGFP saRNA can stably express enhanced green fluorescent protein for a long time, and can be used as a control to analyze the delivery and translation efficiency of RNA.
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mRNA Length |
8528 nucleotides |
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Excitation max (nm) |
488 nm (EGFP) |
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Emission max (nm) |
509 nm (EGFP) |
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Concentration |
~1 mg/mL |
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Buffer |
RNase free water |
Storage |
-40°C or below |
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General tips |
Please dissolve it on ice and protect from RNase carefully. Avoid repeated freeze/thaw cycles as possible. Don’t vortex. Upon first use, centrifuge the tube softly and aliquot it into several single use portions. Use RNase-free reagents and materials with appropriate RNase-free technique. Don’t add to the media with serum unless mixing with a transfection reagent. |
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Shipping Condition |
ship with dry ice |
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It can be based on your experimental goals:
- For Tracking Transfection and Translation Efficiency: APExBIO Reporter Gene mRNAs (e.g. EGFP, Firefly Luciferase mRNA) are commonly used to track transfection efficiency and protein expression duration; evaluate gene expression and cell viability; study mRNA localization and bio-distribution via in vivo imaging; optimize transfection conditions and validate LNP delivery system.
- For Gene Editing, Functional Studies and Gene Therapy Research: APExBIO offers various functional protein mRNAs, involving tumor suppressors (e.g. p53, PTEN), cytokines (e.g. IL-12, IL-10), gene-editing tools (e.g. spCas9, Cre Recombinase), gene replacement protein (e.g. EPO), and antigens (e.g. OVA, SARS-CoV-2 Spike).
- For Sustained Protein Expression: APExBIO Self-amplifying RNA (saRNA) and Circular RNA (circRNA) are recommended for applications requiring prolonged protein expression. saRNA enables lasting and strong protein expression at lower doses, while circRNA has enhanced structural stability and extended expression duration.
- Advanced Capping Technology: Utilizes Cap 1 structure (EZ Cap™ Cap) to achieve enhanced translation efficiency and minimizing activation of the host innate immune response. The capping efficiency can reach 90–99%.
- Diverse Modification Options: Provides a range of modified nucleotides, such as m1Ψ B8049, 5-moUTP B8061 and Cy5-UTP B8333, which reduce immunogenicity, improve mRNA stability, and maximize protein expression levels.
- Stringent Quality Control: Each batch undergoes rigorous quality assessment including capping efficiency, purity, integrity, and sterility to ensure batch-to-batch consistency.
