Revision 3
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB

REACTIVITY:

Vir

SENSITIVITY:

Endogenous

MW (kDa):

55

SOURCE:

Rabbit

UniProt ID:

#P0DTC9

Entrez-Gene Id:

43740575

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

SARS-CoV-2 Nucleocapsid Protein Antibody recognizes endogenous levels of total SARS-CoV-2 nucleocapsid (N) protein.

Species Reactivity:

Virus

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Gly30 of SARS-CoV-2 nucleocapsid (N) protein. Antibodies are purified by peptide affinity chromatography.

Background

The cause of the COVID-19 pandemic is a novel and highly pathogenic coronavirus, termed SARS-CoV-2 (severe acute respiratory syndrome coronavirus-2). SARS-CoV-2 is a member of the Coronaviridae family of viruses (1). The genome of SARS-CoV-2 is relatively large and encodes up to 29 open reading frames (ORFs). These include ORF1a and ORF1b (further processed into 16 non-structural proteins), 9 accessory proteins, and 4 canonical structural proteins: spike (S), envelope (E), membrane (M), and nucleocapsid (N) (2). The nucleocapsid (N) protein is a phosphoprotein that plays a critical role in viral assembly (3,4). It binds to the viral genomic RNA, enabling its packaging into the ribonucleoprotein complex (RNP), and is the most abundant protein in the virion (5). Evidence from studies in SARS-CoV-2 and other coronaviruses suggest functions for nucleocapsid (N) protein beyond viral RNA packaging, including roles in viral replication (6) and suppressing host immune responses to viral infection (7).

  1. Zhou, P. et al. (2020) Nature 579, 270-273.
  2. Tortorici, M.A. and Veesler, D. (2019) Adv Virus Res 105, 93-116.
  3. Zengel, J. et al. (2015) J Virol 89, 7338-47.
  4. Surjit, M. et al. (2005) J Virol 79, 11476-86.
  5. Peng, Y. et al. (2020) EMBO J, e105938.
  6. Cong, Y. et al. (2020) J Virol 94, e01925-19. doi: 10.1128/JVI.01925-19.
  7. Mu, J. et al. (2020) Sci China Life Sci 63, 1-4.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 3
#33336

SARS-CoV-2 Nucleocapsid Protein Antibody

Western Blotting Image 1: SARS-CoV-2 Nucleocapsid Protein Antibody Expand Image
Western blot analysis of extracts from mock infected Vero-E6 cells (lane 1), SARS-CoV-2-infected Vero-E6 cells (lane 2), and isolated SARS-CoV-2 virions (lane 3), using SARS-CoV-2 Nucleocapsid Protein Antibody (upper) and GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). SARS-CoV-2 virions and infected Vero-E6 cells courtesy of Dr. Mohsan Saeed, National Emerging Infectious Diseases Laboratories, Boston University.
Western Blotting Image 2: SARS-CoV-2 Nucleocapsid Protein Antibody Expand Image
Western blot analysis of extracts from transgenic A549 cells stably expressing HA-tagged SARS-CoV-2 nucleocapsid (N) protein (A549-N protein) (lane 1) or HA-tagged SARS-CoV-2 envelope (E) protein (A549-E protein) (lane 2), using SARS-CoV-2 Nucleocapsid Protein Antibody (upper), HA-Tag (6E2) Mouse mAb #2367 (middle), and GAPDH (D16H11) XP® Rabbit mAb #5174 (lower). Absence of signal in A549-E protein cell extracts confirms specificity of the antibody for SARS-CoV-2 nucleocapsid (N) protein. Transgenic A549 cells were generously provided by Dr. Elena Piskounova, Weill Cornell Medicine.
Western Blotting Image 3: SARS-CoV-2 Nucleocapsid Protein Antibody Expand Image
Western blot analysis of extracts from 293T cells, mock transfected (lane 1) or transiently transfected with plasmid encoding Myc/DDK-tagged SARS-CoV-2 nucleocapsid (N) protein (lane 2), using SARS-CoV-2 Nucleocapsid Protein Antibody (upper), Myc-Tag (71D10) Rabbit mAb #2278 (middle), and GAPDH (D16H11) XP® Rabbit mAb #5174 (lower).