SARS-CoV-2 ORF7a Antibody [Alexa Fluor™ Plus 555]

Novus Biologicals | Catalog # NBP3-11936AFP555

Novus Biologicals
100% Guarantee

Key Product Details

Species Reactivity

Validated:

SARS-CoV-2

Predicted:

Bat-CoV (100%), SARS-CoV (90%). Backed by our 100% Guarantee.

Applications

ELISA

Label

Alexa Fluor Plus 555

Antibody Source

Polyclonal Rabbit IgG
View all SARS-CoV-2 ORF7a Primary Antibodies »

Product Specifications

Immunogen

Antibody was raised against a peptide corresponding to 9 amino acids near the carboxyl terminus of SARS-CoV-2 ORF7a protein. The immunogen is located within the last 50 amino acids of the SARS-CoV-2 ORF7a protein.

Clonality

Polyclonal

Host

Rabbit

Isotype

IgG

Applications for SARS-CoV-2 ORF7a Antibody [Alexa Fluor™ Plus 555]

Application
Recommended Usage

ELISA

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Peptide affinity purified

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: SARS-CoV-2 ORF7a

SARS-CoV-2 Open Reading Frame 7a (ORF7a) is one of the nine downstream accessory protein open reading frames of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the causative agent of COVID-19 (1). SARS-CoV-2 ORF7a is a type I transmembrane protein with a 121 amino acid (aa) sequence and a theoretical molecular weight of 13.7 kDa (2, 3). ORF7a localizes mostly on the Golgi apparatus but also presents on the cell surface (4). The N-terminal domain of ORF7a is comprised of 7 beta-strands that form 2 beta-sheets, arranged by an immuno-globulin-like beta-sandwich fold (2, 5). The aa sequence alignment of SARS-CoV and SARS-CoV-2's ORF7a has 85.2% sequence identity and 95.9% sequence similarity (3).

Similar to its role in SARS-CoV, ORF7a of SARS-CoV-2 is an inhibitor of the host tetherin bone marrow stromal antigen-2 (BST-2) (2, 4). Functionally, ORF7a binds to BST-2, inhibiting its viral restriction activity by blocking glycosylation (2, 4).

References

1. Michel, C. J., Mayenr, C., Poch, O., & Thompson, J. D. (2020). Characterization of accessory genes in coronavirus genomes. Virology journal. https://doi.org/10.1186/s12985-020-01402-1

2. UniProt (P0DTC7)

3. Yoshimoto F. K. (2020). The Proteins of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS CoV-2 or n-COV19), the Cause of COVID-19. The protein journal. https://doi.org/10.1007/s10930-020-09901-4

4. Taylor, J. K., Coleman, C. M., Postel, S., Sisk, J. M., Bernbaum, J. G., Venkataraman, T., Sundberg, E. J., & Frieman, M. B. (2015). Severe Acute Respiratory Syndrome Coronavirus ORF7a Inhibits Bone Marrow Stromal Antigen 2 Virion Tethering through a Novel Mechanism of Glycosylation Interference. Journal of virology. https://doi.org/10.1128/JVI.02274-15

5. Nelson, C. A., Pekosz, A., Lee, C. A., Diamond, M. S., & Fremont, D. H. (2005). Structure and intracellular targeting of the SARS-coronavirus Orf7a accessory protein. Structure (London, England : 1993). https://doi.org/10.1016/j.str.2004.10.010

Alternate Names

2019-nCoV ORF7a, 2019-nCoV ORF7a Protein, Accessory Protein 7a, COVID-19 Accessory Protein 7a, COVID-19 ORF7a, COVID-19 Protein U122, COVID-19 Protein X4, Human coronavirus ORF7a Protein, ORF7a Protein, Protein U122, Protein X4, SARS-CoV-2 Accessory Protein 7a, SARS-CoV-2 Protein U122, SARS-CoV-2 Protein X4

Gene Symbol

ORF7a

Additional SARS-CoV-2 ORF7a Products

Product Documents for SARS-CoV-2 ORF7a Antibody [Alexa Fluor™ Plus 555]

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot or batch number in the search box below.

Download SDS

Product Specific Notices for SARS-CoV-2 ORF7a Antibody [Alexa Fluor™ Plus 555]



This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com. This conjugate is made on demand. Actual recovery may vary from the stated volume of this product. The volume will be greater than or equal to the unit size stated on the datasheet.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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