EZ Cap™ mCherry mRNA (5mCTP, ψUTP)

mCherry mRNA encodes the red fluorescent protein mCherry. mCherry is a derivative of the red fluorescent protein DsRed, which is isolated from the sea anemone (Discosoma). mCherry is a monomeric fluorophore with an absorption maximum at 587 nm and an emission maximum at 610 nm. mCherry has good photostability and is widely used for molecular markers and cell component positioning in biology.

EZ Cap™ mCherry mRNA (5mCTP, ψUTP) is provided at a concentration of ~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/ψUTP and poly(A) tail suppress RNA-mediated innate immune activation and increase 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.