SARS-CoV-2 ORF7a Antibody [Biotin] Summary
| 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. |
| Predicted Species |
SARS-CoV (90%), Bat-CoV (100%). Backed by our 100% Guarantee. |
| Isotype |
IgG |
| Clonality |
Polyclonal |
| Host |
Rabbit |
| Gene |
ORF7a |
| Purity |
Peptide affinity purified |
| Innovator's Reward |
Test in a species/application not listed above to receive a full credit towards a future purchase. |
Applications/Dilutions
| Dilutions |
|
| Application Notes |
Optimal dilution of this antibody should be experimentally determined. |
Reactivity Notes
Packaging, Storage & Formulations
| Storage |
Store at 4C in the dark. |
| Buffer |
PBS |
| Preservative |
0.05% Sodium Azide |
| Purity |
Peptide affinity purified |
Alternate Names for SARS-CoV-2 ORF7a Antibody [Biotin]
Background
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
Limitations
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.
Publications for SARS-CoV-2 ORF7a Antibody (NBP3-11936B) (0)
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Product General Protocols
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