HCoV-229E Human Coronavirus Spike RBD Antibody

Name: HCoV-229E Human Coronavirus Spike RBD Antibody
Brand: R&D Systems
SKU: MAB10938

R&D Systems, part of Bio-Techne | Catalog # MAB10938

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Product Specifications
Scientific Data
Applications
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Species Reactivity

HCoV-229E

Applications

Immunocytochemistry, Simple Western, Western Blot

Label

Unconjugated

Antibody Source

Monoclonal Mouse IgG_2B Clone # 1045017

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Product Specifications

Immunogen

Human embryonic kidney cell HEK293-derived HCoV-229E Spike RBD
Ser292-Asp453
Accession # P15423.1

Specificity

Detects Human Coronavirus HCoV-229E in direct ELISAs.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG_2B

Scientific Data Images for HCoV-229E Human Coronavirus Spike RBD Antibody

Detection of Spike RBD by Western Blot.

Western blot shows recombinant HCoV-229E-S RBD. PVDF membrane was probed with 1 µg/mL of Mouse Anti-HCoV-HKU1 Spike RBD Monoclonal Antibody (Catalog # MAB10938) followed by HRP-conjugated Anti-Mouse IgG Secondary Antibody (HAF018). A specific band was detected for Spike RBD at approximately 30 kDa (as indicated). This experiment was conducted under reducing conditions and using Western Blot Buffer Group 1.

Spike RBD in CHO Chinese hamster ovary cell line transfected with HCoV-229E .

Spike RBD was detected in immersion fixed CHO Chinese hamster ovary cell line transfected with HCoV-229E (positive staining) and CHO Chinese hamster ovary cell line (non-transfected, negative staining) using Mouse Anti-HCoV-HKU1 Spike RBD Monoclonal Antibody (Catalog # MAB10938) at 8 µg/mL for 3 hours at room temperature. Cells were stained using the NorthernLights™ 557-conjugated Anti-Mouse IgG Secondary Antibody (red; NL007) and counterstained with DAPI (blue). Specific staining was localized to cell cytoplasm. Staining was performed using our protocol for Fluorescent ICC Staining of Non-adherent Cells.

Detection of SARS-CoV-2 Spike RBD by Simple Western^TM.

Simple Western lane view recombinant HCoV-229E-S RBD, loaded at 0.2 mg/mL. A specific band was detected for Spike RBD at approximately 47 kDa (as indicated) using 20 µg/mL of Mouse Anti-HCoV-229E Human Coronavirus Spike RBD Monoclonal Antibody (Catalog # MAB10938) . This experiment was conducted under reducing conditions and using the 12-230 kDa separation system.

Applications for HCoV-229E Human Coronavirus Spike RBD Antibody

Application

Recommended Usage

Immunocytochemistry

8-25 µg/mL
Sample: Immersion fixed CHO Chinese hamster ovary cell line transfected with HCoV-229E

Simple Western

20 µg/mL
Sample: Recombinant HCoV-229E-S RBD

Western Blot

1 µg/mL
Sample: Recombinant HCoV-229E-S RBD

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma 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 either lyophilized or 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.

Background: Spike RBD

HCoV-229E 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). HCoV-229E is a member of the alpha-coronavirus family and was discovered in 1966 (1, 2). Other well-known human coronaviruses include three viruses that cause relatively mild respiratory disease: HCoV-NL63, HCoV-HKU1 and HCov-OC43, plus three viruses that caused the Severe Acute Respiratory Syndrome (SARS-CoV), the Middle East Respirator Syndrome (MERS-CoV), and the global pandemic Covid-19 (SARS-CoV2). HCov-229E 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-229E S protein shares high homology (56%) with HCoV-NL63, it does not employ Angiotensin-Converting Enzyme 2 (ACE2) as the receptor like HCoV-NL63. Instead, HCoV-229E engages CD13 (aminopeptidase N) for cellular entry and replication (3). The receptor binding domain (RBD) of HCoV-229E is solely responsible for receptor binding through three extended receptor binding loops (4).

References

Hamre, D. and J.J. Procknow (1966) Proc. Soc. Exp. Biol. Med. 121:190.
Van der Hoek, L. et al. (2004) Nat. Med. 10:368.
Yeager, C.L. et al. (1992) Nature 357:420.
Wong, A.H.M. et al. (2017) Nat. Commun. 8:1735.

Long Name

Spike Receptor Binding Domain

Entrez Gene IDs

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