SARS-CoV-2 Nucleocapsid Antibody

R&D Systems, part of Bio-Techne | Catalog # MAB10857

Recombinant Monoclonal Antibody.
R&D Systems, part of Bio-Techne
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MAB10857-100
MAB10857-SP
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Key Product Details

Species Reactivity

SARS-CoV-2

Applications

ELISA

Label

Unconjugated

Antibody Source

Recombinant Monoclonal Rabbit IgG Clone # 2815D

View all Nucleocapsid Antibodies »

Product Specifications

Immunogen

Spodoptera frugiperda, Sf 21 (baculovirus)-derived SARS-CoV-2 Nucleocapsid
Met1-Ala419
Accession # YP_009724397.2

Specificity

Detects SARS-CoV-2 Nucleocapsid in direct ELISAs.

Clonality

Monoclonal

Host

Rabbit

Isotype

IgG

Scientific Data Images for SARS-CoV-2 Nucleocapsid Antibody

SARS-CoV-2 Nucleocapsid ELISA Standard Curve.

Recombinant SARS-CoV-2 Nucleocapsid protein was serially diluted 2-fold and captured by Rabbit Anti-SARS-CoV-2 Nucleocapsid Monoclonal Antibody (Catalog # MAB10475) coated on a Clear Polystyrene Microplate (Catalog # DY990). Rabbit Anti-SARS-CoV-2 Nucleocapsid Monoclonal Antibody (Catalog # MAB10857) was biotinylated and incubated with the protein captured on the plate. Detection of the standard curve was achieved by incubating Streptavidin-HRP (Catalog # DY998) followed by Substrate Solution (Catalog # DY999) and stopping the enzymatic reaction with Stop Solution (Catalog # DY994).

Applications for SARS-CoV-2 Nucleocapsid Antibody

Application
Recommended Usage

ELISA

This antibody functions as an ELISA detection antibody when paired with Rabbit Anti-SARS-CoV-2 Nucleocapsid Monoclonal Antibody (Catalog # MAB10475).This product is intended for assay development on various assay platforms requiring antibody pairs.

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.

Reconstitution Buffer Available:
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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: Nucleocapsid

SARS-CoV-2, which causes the global pandemic coronavirus disease 2019 (Covid-19), belongs to a family of viruses known as coronaviruses that are commonly comprised of four structural proteins: Spike protein (S), Envelope protein (E), Membrane protein (M), and Nucleocapsid protein (N) (1).  While the S, E and M proteins build up the viral envelop, the N protein is involved transcription, replication and packaging of the viral RNA genome into a helical ribonucleocapsid (RNP) (2, 3).  The SARS-CoV-2 N protein is a ~45 kDa protein composed of two independent structural domains connected by a linker region. The N-terminal region contains an RNA binding domain, the linker region interacts with the M protein and the C-terminal region contains a self-association domain (2,3). The SARS-CoV2 N protein shares 91% and 47% amino acid sequence identity with SARS-CoV-1 and MERS N protein, respectively.  The SARS-CoV-2 N protein displays VSR (viral suppressor of RNA interference) activity in mammalian cells (4). In addition, the N protein is an abundant protein during coronavirus infection and displays high immunogenic activity (5, 6), so it has been used to develop serological diagnostic kit for Covid-19 IgM and IgG antibody tests (7).

References

  1. Wu, F. et al. (2020) Nature 579:265.
  2. Chang, C. K. et al. (2006) J. Biomed. Sci. 13:59.
  3. Hurst, K. R. et al. (2009) J. Virol. 83:7221.
  4. Mu, J. et al. (2020) Sci. China Life Sci. doi: 10.1007/s11427-020-1692-1.
  5. Che, X. Y. et al. (2004) J. Clin. Microbiol. 42:2629.
  6. Guan, M. et al. (2004) Clin. Diagn. Lab. Immunol. 11:287.
  7. Liu, W. et al. (2020) J. Clin. Microbiol. doi: 10.1128/JCM.00461-20.

Long Name

Nucleocapsid Protein

Alternate Names

N Protein

Entrez Gene IDs

918763 (HCoV-229E); 3200423 (HCoV-HKU1); 2943504 (HCoV-NL63); 39105221 (HCoV-OC43); 14254601 (MERS-CoV); 1489678 (SARS-CoV); 43740575 (SARS-CoV-2)

Gene Symbol

N

UniProt

YP_009724397.2

Additional Nucleocapsid Products

Product Documents for SARS-CoV-2 Nucleocapsid Antibody

Product Datasheets

Certificate of Analysis

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Note: Certificate of Analysis not available for kit components.

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Product Specific Notices for SARS-CoV-2 Nucleocapsid Antibody

For research use only

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