| Field | Specification |
|---|---|
| Mfr No | |
| Product Type | |
| Shipping | |
| Source | Recombinant (E. coli) |
| Storage |
Eukaryotes mRNA forms a special structure at the 5'end after transcription, which is the cap structure. The cap structure plays an important role in the stability, transportation, and translation of mRNA. The vaccinia virus capping enzyme is an effective enzyme that can catalyze the formation of the cap structure. It"s composed of two subunits D1 and D12. It also has RNA triphosphatase activity, guanylate acyltransferase activity, and guanine methyltransferase activity that could connect the 7-methylguanine cap structure (m7Gppp) to the 5'end of the RNA (m7Gppp5'N). Vaccinia virus capping enzyme can cap the RNA in correct direction within one hour when present at a suitable concentration of capping buffer, guanosine triphosphate (GTP), S-adenosylmethionine (SAM), etc.
This product is produced by GMP process requirements and provided in a liquid form, used for in vivo/in vitro pre-translation mRNA capping reaction or mRNA 5'end labeling reaction.
Feature
- Isolated from a recombinant source
- Tested for the absence of endonucleases, exonucleases, RNases
Application
- Capping mRNA before translation assays/in vitro translation
- Labeling 5´ end of mRNA
Specification
| Source | Recombinant E. coli with vaccinia virus capping enzyme gene |
| Optimum Temperature | 37℃ |
| Storage Buffer | 20 mM Tris-HCl pH 8.0, 100 mM NaCl, 1 mM DTT, 0.1 mM EDTA, 0.1% Triton X-100, 50% glycerin |
| Unit Definition | 1 unit: The amount of enzyme required to incorporate 10 pmol GTP (α- 32P) into a transcript with 80 nucleotides (80 nt) at 37℃ within 1 hour. |
Components
| Components No. | Name | 10614ES84 (2,000 U) | 10614ES92 (10,000 U) | 10614ES96 (100,000 U) | 10614ES99 (5 MU) |
| 10614 | mRNA Vaccinia Capping Enzyme GMP-grade (10 U/μL) | 200 μL | 1 mL | 10 mL | 500 mL |
Shipping and Storage
mRNA Vaccinia Capping Enzyme GMP-grade products are shipped with dry ice and can be stored at -15℃ ~ -25℃ for one year.
Figures
Figure 1. The capping efficiency almost reached 100% by the vaccinia capping system from YEASEN. Nucleic acid mass spectrometry before the cap reaction was shown in Figure 1A. Nucleic acid mass spectrometry after the cap reaction was shown in Figure 1B.
Glycerol Content: Contains Glycerol
Store this enzyme at -20°C and avoid repeated freeze-thaw cycles to preserve catalytic activity. The product is shipped Dry Ice and remains stable for up to one year from the date of manufacture when stored under recommended conditions. Aliquoting the stock solution into single-use volumes is recommended for enzymes used infrequently to minimize thermal cycling of the bulk stock.
This enzyme is validated for use in In Vitro Transcription applications. It is suitable for use in both standard laboratory research settings and, where applicable, optimized reaction workflows requiring high specificity, sensitivity, or throughput.
Capping efficiency (%) is determined by the proportion of RNA transcripts bearing a 5′ cap structure following the standard capping reaction. Activity is also expressed as units (U) per µL under manufacturer-defined assay conditions.
This enzyme is produced as Recombinant (E. coli) and is available in GMP grade for regulated applications. This enzyme is manufactured in an ISO 13485-certified UCF.ME™ facility and meets GMP-grade quality standards. Each lot is subjected to activity assay, purity assessment by SDS-PAGE, and functional validation prior to release. A Certificate of Analysis (CoA) and Safety Data Sheet (SDS) are available on request.
A 5′ cap structure (typically 7-methylguanosine, m7G) on mRNA is essential for ribosomal recognition during cap-dependent translation initiation via eIF4E binding. It also protects mRNA from 5′ exonuclease degradation and signals to the innate immune system that the transcript is "self." Cap-1 structures (2′-O-methylation at the +1 nucleotide) further reduce immunogenicity, which is critical for therapeutic mRNA vaccines and protein replacement therapies.
Yeasen Biotechnology supports custom enzyme solutions across multiple service lines — from GMP-grade bulk supply to directed enzyme engineering. Contact BioHippo to discuss requirements and initiate a project inquiry.
▶ GMP-Grade & Bulk Supply
Select Yeasen enzymes are available in GMP grade, manufactured in an ISO 13485-certified UCF.ME™ ultra-clean molecular enzyme facility with FDA Drug Master File (DMF) support.
- GMP-grade release testing and CoA documentation
- ISO 13485-certified production facility
- Scalable from milligram to multi-gram quantities
- Consistent lot-to-lot activity specifications
▶ Glycerol-Free & Custom Formulation
Glycerol-free enzyme formats are available for applications requiring lyophilization compatibility, liquid handling automation, or direct IVD master mix integration.
- Glycerol-free liquid format (standard and custom buffers)
- Lyophilization-ready enzyme preparation
- Custom reaction buffer optimization for specific assay conditions
- Compatible with freeze-drying workflows for point-of-care formats
▶ Molecular IVD RDC Service
Yeasen's Research and Development Contracting (RDC) team delivers end-to-end solutions for molecular diagnostic product development, covering enzyme selection through clinical validation support.
- Enzyme selection and performance matching
- Primer/probe design and reaction buffer optimization
- Sensitivity, specificity, and precision validation studies
- Stability studies and SNP evaluation
- Instrument platform compatibility assessment
▶ ZymeEditor™ Enzyme Engineering
Yeasen's proprietary ZymeEditor™ directed evolution and rational design platform enables the development of custom enzyme variants with tailored performance characteristics not available in off-the-shelf products.
- Directed evolution for enhanced thermostability, processivity, or fidelity
- Rational design for altered substrate specificity or cofactor requirements
- Library screening from Yeasen's proprietary enzyme variant collection
- Scale-up to commercial quantities upon candidate confirmation
ⓘ Customization services are fulfilled by Yeasen Biotechnology. Lead times and minimum order quantities vary by service type. Contact BioHippo for project scoping and pricing.
