Name :
TAG-72 Protein
Description :
The guanine-N7 methyltransferase domain of vaccinia virus mRNA capping enzyme is a heterodimer composed of a catalytic subunit and a stimulatory subunit. Cap (guanine-N7) methylation is an essential step in eukaryal mRNA synthesis and a potential target for antiviral, antifungal, and antiprotozoal drug discovery.
Species :
Canine
Uniprotkb :
E. coli
Tag :
C-His
Synonyms :
mRNA-methyltransferase, mRNA (guanine-N(7))-methyltransferase, TAG72, TAG 72
Construction :
Recombinant Canine TAG-72 Protein is expressed from E.coli with His tag at the C-Terminus. It contains Met1-Gln478.[Accession |XP_005615459.2]
Protein Purity :
> 95% as determined by Tris-Bis PAGE; > 95% as determined by HPLC
Molecular Weight :
The protein has a predicted MW of 56.19 kDa same as Tris-Bis PAGE result.
Endotoxin :
Less than 1EU per μg by the LAL method.
Formulatione :
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution :
Centrifuge the tube before opening. Reconstituting to a concentration more than 100 μg/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability & Storage :
-20 to -80°C for 12 months as supplied from date of receipt. -20 to -80°C for 3-6 months in unopened state after reconstitution. 2-8°C for 2-7 days after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
The guanine-N7 methyltransferase domain of vaccinia virus mRNA capping enzyme is a heterodimer composed of a catalytic subunit and a stimulatory subunit. Cap (guanine-N7) methylation is an essential step in eukaryal mRNA synthesis and a potential target for antiviral, antifungal, and antiprotozoal drug discovery.
References and Literature :
1. Zheng S, Shuman S. Structure-function analysis of vaccinia virus mRNA cap (guanine-N7) methyltransferase. RNA. 2008 Apr;14(4):696-705. doi: 10.1261/rna.928208. Epub 2008 Feb 6. PMID: 18256245; PMCID: PMC2271365. 2. Zheng S, et al. Mutational analysis of Encephalitozoon cuniculi mRNA cap (guanine-N7) methyltransferase, structure of the enzyme bound to sinefungin, and evidence that cap methyltransferase is the target of sinefungin’s antifungal activity. J Biol Chem. 2006 Nov 24;281(47):35904-13. doi: 10.1074/jbc.M607292200. Epub 2006 Sep 12. PMID: 16971388.
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