Nucleocapsid Antibody (2815F) [Alexa Fluor® 488]

• Reactivity: V
• Applications: WB, ELISA
• Clone: 2815F
• Clonality: Monoclonal
• Host: Rabbit
• Conjugate: Alexa Fluor 488

Nucleocapsid Antibody (2815F) [Alexa Fluor® 488] Summary

• Additional Information: Recombinant Monoclonal Antibody.
• Immunogen: Spodoptera frugiperda, Sf 21 (baculovirus)-derived SARS-CoV-2 Nucleocapsid
  Met1-Ala419
  Accession # YP_009724397.2
• Specificity: Detects SARS-CoV-2 Nucleocapsid ELISA.
• Isotype: IgG
• Clonality: Monoclonal
• Host: Rabbit
• Purity Statement: Protein A or G purified

Applications/Dilutions

• Dilutions:
  • ELISA
  • Western Blot

Packaging, Storage & Formulations

• Storage: Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied
• Buffer: Supplied 0.2mg/ml in 1X PBS with RDF1 and 0.09% Sodium Azide

Notes

This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.

Alternate Names for Nucleocapsid Antibody (2815F) [Alexa Fluor® 488]

• N Protein
• Nucleocapsid protein
• Nucleocapsid
• ORF9a protein

Background

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).

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.