Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Name: Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF
Brand: R&D Systems
SKU: 10667-CV
Rating: 4 (1 reviews)

R&D Systems, Inc. a Bio-Techne Brand

Catalog # 10667-CV

(1)

Product Datasheet / COA / SDS

Catalog #

Availability

Size / Price

Qty

Setting the standard in quality research reagents

Key Product Details

Source:	E. coli
Accession #:	YP_009725309.1

View Full Technical Details for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Product Specifications for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Source	E. coli-derived sars-cov-2 NSP14 protein Ala1-Gln527 with a C-terminal 6-His tag
Purity	>85%, by SDS-PAGE visualized with Silver Staining and quantitative densitometry by Coomassie® Blue Staining.
Endotoxin level	<1.0 EU per 1 μg of the protein by the LAL method.
N-terminal sequence Analysis	Ala1
Predicted Molecular Mass	61 kDa
SDS-PAGE	53-62 kDa, under reducing conditions

Formulation, Preparation and Storage

Carrier Free

What does CF mean?

CF stands for Carrier Free (CF). We typically add Bovine Serum Albumin (BSA) as a carrier protein to our recombinant proteins. Adding a carrier protein enhances protein stability, increases shelf-life, and allows the recombinant protein to be stored at a more dilute concentration. The carrier free version does not contain BSA.

What formulation is right for me?

In general, we advise purchasing the recombinant protein with BSA for use in cell or tissue culture, or as an ELISA standard. In contrast, the carrier free protein is recommended for applications, in which the presence of BSA could interfere.

10667-CV

Formulation	Supplied as a 0.2 μm filtered solution in Tris, NaCl, TCEP and Glycerol.
Shipping	The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage:	Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 6 months from date of receipt, -20 to -70 °C as supplied. 3 months, -20 to -70 °C under sterile conditions after opening.

Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

Volume (to add to vial)

Mass (in vial)

Desired Reconstitution Concentration

Background: NSP14

Non-structural protein 14 (NSP14) is one of several functional proteins released by ORF1a-encoded protease cleavage of the pp1a and pp1ab replicase polyproteins expressed from the coronavirus (CoV) genome (1). The NSPs are involved in the replication and transcription of the viral RNA and not incorporated within the virion particles. Coronaviruses include various highly pathogenic strains such as SARS-CoV, MERS-CoV and SARS-CoV2 that have had significant impact on humans in addition to strains that have negatively impacted livestock. NSP14 is a bifunctional 527 amino acid enzyme. It contains a noncanonical methyltransferase (MTase) domain in the C‑terminal portion of the protein that methylates guanosine at the N7 position using S-adenosyl methionine (SAM) as a methyl donor to generate the intermediate cap-O structure of the 5' mRNA cap (2). The viral RNA cap structure protects the viral RNA from degradation, promotes mRNA translation, and prevents recognition by innate immune mechanisms (3). As the MTase active site fold is unique from cellular MTases (4), NSP14 presents an attractive antiviral target. The C‑terminal domain is connected via a hinge region to an N‑terminal exonuclease domain composed of three highly conserved motifs (5). The 3' to 5' exonuclease function of the N-terminal domain is responsible for the proofreading and high-fidelity replication observed in coronaviruses compared to other RNA viruses (6-8). NSP14 has been shown to form a complex with NSP10; the association with NSP10 was shown to stimulate exonuclease catalytic activity more than 35-fold and is required for the high replication fidelity (9,10). Exonuclease function makes polymerase inhibition via nucleos(t)ide analog (NA) development more challenging because it confers resistance via its error-correcting mechanism for NA incorporated into RNA (6,9). NSP14 exonuclease domain mutation studies showed it is absolutely required for viability and replication of SARSCoV2 (11) suggesting exonuclease activity may serve a more extensive role in replication than proof-reading (11,12). NSP14 was suggested to be involved in mediating recombination frequency and junction site selection in coronavirus (13). Both for the role it plays in resistance to polymerase inhibition and based on absolute requirement for viability, NSP14 is an appealing protein to target for therapeutic and vaccine development (8,11,13,14).

Item	Value
References	Snijder, E.J. et al. (2016) Adv. Virus Res. 96:59. Jin, X. et al. (2013) Virus Res. 176:45. Decroly, E. et al. (2011) PLoS Pathog. 7:e1002059. Chen, Y. et al. (2009) Proc. Natl. Acad. Sci. USA 106:3484. Ogando, N.S. et al. (2019) Front. Microbiol. 10:1813. Minskaia, E. et al. (2006) Proc. Natl. Acad. Sci. USA 103:5108. Eckerle, L. et al. (2007) J. Virol. 81:12135. Smith, E.C. et al. (2013) PLoS Pathog. 9:e1003565. Bouvet, M. et al. (2012) Proc. Natl. Acad. Sci. 109:9372. Smith, E.C. et al. (2015) J. Virol. 89:6418. Ogando, N.S. et al. (2020) J. Virol. 94:e01246. Baddock, H.T. et al. (2020) (pre-print) Gribble, J. et al. (2020) bioRxiv (pre-print) Shannon, A. et al. (2020) Antiviral Res. 178:104793.
Long Name	Non-Structural Protein 14
Alternate Names	NSP14

Citations for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Please visit our Instrument Citation Database to search our collection of scientific articles that feature our instruments.

Customer Reviews for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF (1)

4 out of 5

1 customer rating

5 stars

4 stars

100%

3 stars

2 stars

1 star

Customer Images

Showing 1 - 1 of 1 review Showing All

Filter By:

Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Name: Anonymous

Application: In vitro bioactivity in cell culture

Reason for Rating: Stimulated immune cells evidenced by increased cytokine expression.

Verified Customer | Posted 06/20/2022

There are no reviews that match your criteria.

Showing 1 - 1 of 1 review Showing All

Product Documents for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Product Datasheets

Download Product Datasheets

COA

SDS

Download SDS

Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

R&D Systems, Inc. a Bio-Techne Brand

Key Product Details

Customers also Viewed

Customers also Purchased

Product Specifications for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Formulation, Preparation and Storage

Carrier Free

Reconstitution Calculator

Background: NSP14

Citations for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Customer Reviews for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF (1)

Customer Images

Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Product Documents for Recombinant SARS-CoV-2 NSP14 His-tag Protein, CF

Product Datasheets

COA

Certificate of Analysis

SDS

Bio-Techne Brands

Stay Connected