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  • ZMS1075 - Anti-SARS-CoV-1/2 NP Antibody, clone 1C7C7 ZooMAb® Mouse Monoclonal

ZMS1075 Sigma-Aldrich

Anti-SARS-CoV-1/2 NP Antibody, clone 1C7C7 ZooMAb® Mouse Monoclonal

Green Alternative Antibody Enhanced Validation

recombinant, expressed in HEK 293 cells

Synonym: NC, Nucleocapsid protein, Protein N.



Related Categories 12 Principles Aligned Products, Alphabetical Index, Antibodies, Antibodies (Greener), Chemical Synthesis,
product line   ZooMAb® learn more
conjugate   unconjugated
clone   1C7C7, recombinant monoclonal
biological source   mouse (recombinant)
application(s)   affinity binding assay: suitable
  flow cytometry: 1 μg/mL
  immunocytochemistry: suitable
  western blot: 1 μg/mL
species reactivity   SARS virus
mol wt   calculated mol wt 45.63 kDa (SARS-CoV-2)
  calculated mol wt 46.03 kDa (SARS-CoV)
  observed mol wt ~46 kDa
enhanced validation   recombinant expression
Learn more about Antibody Enhanced Validation
form   lyophilized
shipped in   ambient
storage temp.   2-8°C
packaging   antibody small pack of 25 μL
antibody form   purified antibody
isotype   IgG2aκ
Quality Level   200
recombinant   expressed in HEK 293 cells
antibody product type   primary antibodies
greener alternative product characteristics   Waste Prevention
Designing Safer Chemicals
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
UniProt accession no.   P0DTC9
greener alternative category   Aligned
Gene Information   SARS coronavirus ... N(43740575)
SARS virus ... N(1489678)


General description

ZooMAb antibodies represent an entirely new generation of recombinant monoclonal antibodies.

Each ZooMAb antibody is manufactured using our proprietary recombinant expression system, purified to homogeneity, and precisely dispensed to produce robust and highly reproducible lot-to-lot consistency. Only top-performing clones are released for use by researchers. Each antibody is validated for high specificity and affinity across multiple applications, including its most commonly used application. ZooMAb antibodies are reliably available and ready to ship when you need them.

Learn more about ZooMAb here.


Clone 1C7C7 is a ZooMAb mouse recombinant antibody that specifically detects SARS-CoV-1/2 NP.


His-tagged full-length recombinant Nucleoprotein from SARS-CoV virus.


Anti-SARS-CoV-1/2 NP, clone 1C7C7 ZooMAb, Cat. No. ZMS1075, is a Mouse monoclonal antibody that detects nucleoprotein from SARS-CoV-1/2 and is tested for use in Affinity Binding Assay, Flow Cytometry, Immunocytochemistry, and Western Blotting.

Flow Cytometry Analysis: 1 mg /ml from a representative lot detected SARS-CoV-1/2 NP in Transfected 293expi cells (Courtesy of Dr Thomas Moran, Center for Therapeutic Antibody Development).

Immunocytochemistry Analysis: 1 μg/mL from a representative lot detected SARS-CoV-1/2 NP in Vero E6 cells infected with SARs-CoV-2 (Courtesy of Dr Ana Fernandez-Sesma Laboratory, Icahn School of Medicine at Mount Sinai (ISMMS), New York).

Western Blotting Analysis: A 1:5,000 dilution of this antibody detected SARS-CoV-1/2 NP in lysate from A549 cells infected with SARS-CoV-2 (Courtesy of Jeff Johnson Laboratory, Icahn School of Medicine at Mount Sinai (ISMMS).

Affinity Binding Assay: This antibody bound recombinant nucleoprotein from SARS-CoV-1/2 with a KD of 4.4 x 10-7 in an affinity binding assay.

Note: Actual optimal working dilutions must be determined by end user as specimens, and experimental conditions may vary with the end user

Target description

Nucleoprotein (UniProt: P59595/P0DTC9; also known as Nucleocapsid protein, NC, Protein N) is encoded by the N gene (Gene ID: 1489678) in Human SARS coronavirus. The SARS-CoV-2 (COVID-19 causing virus) is a positive-strand RNA virus that causes severe respiratory syndrome in human. The mature SARS-CoV-2 contains 4 structural proteins: Envelope (E), Membrane (M), Nucleocapsid (N), and the Spike protein (S). Nucleoprotein of SARS-CoV and SARS-CoV-2 is a homooligomeric protein that packages the positive strand viral genome RNA into helical ribonucleocapsid and plays a role in virion assembly through its interactions with the viral genome and membrane protein M. It plays an important role in enhancing the efficiency of subgenomic viral RNA transcription as well as viral replication. The RNA binding region of SARS-CoV and SARS-CoV-2 is localized to amino acids 42-187 and 41-186, respectively. Lack of cysteine is one of the common features in nucleoprotein from different coronaviruses. The complete N protein of SARS-CoV and COV-2 is a highly basic with positive net charges and high pI (10.11). Its N-terminal region is more basic with positive charge, while the C-terminal region is acidic with negative charge. The middle region of nucleoprotein displays relatively higher hydrophobicity and the two termini display greater hydrophilicity. Nucleoprotein can undergo phosphorylation at multiple serines by GSK-3, CKII, Akt, CDKs, and Polo-like kinases. Some of these phosphorylation events are essential for RNA binding, oligomerization and localization to nucleoli. Phosphorylation is also required for recruitment of host RNA helicase DDX1 (DEAD-Box Helicase 1) that facilitates template readthrough and enables longer subgenomic mRNA synthesis. This ZooMAb recombinant monoclonal antibody, generated by our propriety technology, offers significantly enhanced specificity, affinity, reproducibility, and stability over conventional monoclonals.

Physical form

Purified mouse monoclonal antibody IgG2a in buffer containing PBS, 5% Trehalose without preservatives


300 μg/mL after reconstitution at 25 μL per vial. Please refer to guidance on suggested starting dilutions and/or titers per application and sample type.

Storage and Stability

Recommend storage of lyophilized product at 2-8°C; Before reconstitution, micro-centrifuge vials briefly to spin down material to bottom of the vial; Reconstitute each vial by adding 25 μL of filtered lab grade water or PBS; Reconstituted antibodies can be stored at 2-8°C, or -20°C for long term storage. Avoid repeated freeze-thaws.


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Data presented is the available current product information and provided as-is. These products have not been tested or verified in any additional applications, sample types, including any clinical use. Experimental conditions must be empirically derived by the user. Our Antibody Guarantee only covers tested applications stated herein and conditions presented in our product information and is not extended to publications.

Legal Information

ZooMAb is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety & Documentation

Safety Information

WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable


Certificate of Analysis (COA)

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Protocols & Articles


Antibody Basics

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