HCoV-NL63 Human Coronavirus Spike RBD Antibody (2841A)

R&D Systems | Catalog # MAB11023

Recombinant Monoclonal Antibody.
R&D Systems

Key Product Details

Species Reactivity

HCoV-NL63

Applications

Immunocytochemistry

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Rabbit IgG Clone # 2841A
View all Spike RBD Primary Antibodies »

Product Specifications

Immunogen

Human embryonic kidney cell HEK293-derived HCoV-NL63 Spike RBD protein
Ala475-Asp634
Accession # YP_003767.1

Specificity

Detects HCoV-NL63 Human Coronavirus Spike RBD in direct ELISAs.

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for HCoV-NL63 Human Coronavirus Spike RBD Antibody (2841A)

Spike RBD in HEK293 Human Cell Line Transfected with HCoV-NL63.

Spike RBD was detected in immersion fixed HEK293 human embryonic kidney cell line transfected with HCoV-NL63 (positive staining) and HEK293 human embryonic kidney cell line (non-transfected, negative staining) using Rabbit Anti-HCoV-NL63 Human Coronavirus Spike RBD Monoclonal Antibody (Catalog # MAB11023) at 3 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Rabbit IgG Secondary Antibody (red; NL004) and counterstained with DAPI (blue). Specific staining was localized to cytoplasm. Staining was performed using our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Applications for HCoV-NL63 Human Coronavirus Spike RBD Antibody (2841A)

Application
Recommended Usage

Immunocytochemistry

3-25 µg/mL
Sample: Immersion fixed HEK293 human embryonic kidney cell line transfected with HCoV-NL63

Formulation, Preparation, and Storage

Purification

Protein A or G purified from cell culture supernatant

Reconstitution

Reconstitute at 0.5 mg/mL in sterile PBS. For liquid material, refer to CoA for concentration.

Formulation

Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.

Shipping

Lyophilized product is shipped at ambient temperature. Liquid small pack size (-SP) is shipped with polar packs. Upon receipt, store immediately at the temperature recommended below.

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

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.

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Background: Spike RBD

HCoV-NL63, a virus first isolated from a child suffering from respiratory disease in 2003, belongs to a family of viruses known as coronaviruses that are commonly comprised of a large plus-strand RNA genome and four structural proteins: Spike protein (S), Envelope protein (E), Membrane protein (M), and Nucleocapsid protein (N) (1, 2). Other well-known human coronaviruses include three viruses that cause relatively mild respiratory disease: HCoV-229E, HCoV-HKU1 and HCov-OC43, plus three viruses that cause the Severe Acute Respiratory Syndrome (SARS-CoV), the Middle East Respirator Syndrome (MERS-CoV), and the global pandemic Covid-19 (SARS-CoV2). HCov-NL63 Spike Protein (S Protein) is a glycoprotein that mediates membrane fusion and viral entry. As with most coronaviruses, proteolytic cleavage of the S protein generates two distinct peptides, S1 and S2 subunits. The S1 subunit is focused on attachment of the protein to the host receptor while the S2 subunit is involved with cell fusion.  Although HCoV-NL63 S protein shares high homology (56%) with HCoV-229E, it does not employ CD13 (aminopeptidase N) as the receptor like HCoV-229E. Instead, HCoV-NL63 engages Angiotensin-Converting Enzyme 2 (ACE-2), the same receptor as SARS-CoV and SARS-CoV2, for cellular entry and replication (3). The receptor binding domain (RBD) of HCoV-NL63 is located at C-terminal region of S1 subunit (4, 5). Although NL63-CoV and SARS-CoV do not share structural homology in RBD region, they bind an overlapping region of ACE-2 (6, 7).

References

  1. Van der Hoek, L. et al. (2004) Nat. Med. 10:368.
  2. Fouchier, R.M. et al. (2004) Proc. Natl. Acad. Sci. U.S.A. 101:6212.
  3. Hofmann, H. et al. (2005) Proc. Natl. Acad. Sci. U.S.A. 102:7988.
  4. Hofmann, H. et al. (2006) J. Virol. 80:8639.
  5. Lin, H. et al. (2008) J. Gen. Virol. 89:1015.
  6. Li, W. et al. (2007) Virology 367:367.
  7. Wu, K. et al. (2009) Proc. Natl. Acad. Sci. U.S.A. 106:19970.

Long Name

Spike Receptor Binding Domain

Entrez Gene IDs

3200426 (HCoV-HKU1); 14254594 (MERS-CoV); 1489668 (SARS-CoV); 43740568 (SARS-CoV-2)

Gene Symbol

S

UniProt

YP_003767.1

Additional Spike RBD Products

Product Documents for HCoV-NL63 Human Coronavirus Spike RBD Antibody (2841A)

Certificate of Analysis

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Product Specific Notices for HCoV-NL63 Human Coronavirus Spike RBD Antibody (2841A)

For research use only

Related Research Areas

Infectious Diseases

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