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AB289627

Recombinant Human coronavirus SARS-CoV-2 nucleocapsid protein (mutated A12G + T205I) (His tag)

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Recombinant Human coronavirus SARS-CoV-2 nucleocapsid protein (mutated A12G + T205I) (His tag) is a SARS-CoV-2 Full Length protein, in the 1 to 419 aa range, expressed in Escherichia coli, with >95%, suitable for SDS-PAGE.

View Alternative Names

Nucleoprotein, N, Nucleocapsid protein, NC, Protein N

1 Images
SDS-PAGE - Recombinant Human coronavirus SARS-CoV-2 nucleocapsid protein (mutated A12G + T205I) (His tag) (AB289627)
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Supplier Data

SDS-PAGE - Recombinant Human coronavirus SARS-CoV-2 nucleocapsid protein (mutated A12G + T205I) (His tag) (AB289627)

SDS PAGE analysis of ab289627

Key facts

Purity

>95% SDS-PAGE

Expression system

Escherichia coli

Tags

His tag N-Terminus

Applications

SDS-PAGE

applications

Biologically active

No

Accession

P0DTC9

Animal free

No

Carrier free

No

Species

SARS-CoV-2

Storage buffer

pH: 7.4 Constituents: PBS, 5% Trehalose, 5% Mannitol, 2.922% Sodium chloride, 0.01% Tween 80

storage-buffer

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Reactivity", "Dilution Info", "Notes"] }, "values": { "SDS-PAGE": { "reactivity":"TESTED_AND_REACTS", "dilution-info":"", "notes":"<p></p>" } } }
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Product details

The mutations were identified in the SARS-CoV-2 variant (known as variant B.1.525) which emerged in the United Kingdom and Nigeria.
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Sequence info

[{"sequence":"","proteinLength":"Full Length","predictedMolecularWeight":"46.6 kDa","actualMolecularWeight":null,"aminoAcidEnd":419,"aminoAcidStart":1,"nature":"Recombinant","expressionSystem":"Escherichia coli","accessionNumber":null,"tags":[{"tag":"His","terminus":"N-Terminus"}]}]
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Properties and storage information

Shipped at conditions
Ambient - Can Ship with Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle
False
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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

The SARS-CoV-2 nucleocapsid protein also known as N protein plays a central role in the packaging and replication of the viral RNA genome. It functions mechanically by binding to the viral RNA to facilitate its replication and encapsidation. The nucleocapsid protein is expressed within the virus-infected cells particularly in the cytoplasm. It is a highly conserved structural protein of the virus and has a molecular weight of approximately 50 kDa. Additionally the nucleocapsid protein aids in RNA binding and is essential for the virus's structural stability.
Biological function summary

The nucleocapsid protein of SARS-CoV-2 is involved in maintaining the integrity of the viral genome. It forms a ribonucleoprotein complex with the viral RNA which is necessary for viral replication. The nucleocapsid protein is integral in the formation of the virus's structure and assists in the assembly and release of new virus particles. It interacts with other viral proteins contributing to the stability and functioning of the virus.

Pathways

The nucleocapsid protein is involved in the viral life cycle and replication pathways. The protein participates in the RNA replication and transcription complex working alongside proteins such as the RNA-dependent RNA polymerase and other non-structural proteins. These interactions within the pathways are essential for the efficient replication of the viral genome and production of new viral particles which are key steps in the virus's lifecycle.

The nucleocapsid protein is directly linked to COVID-19 the disease caused by the SARS-CoV-2 virus. It is a target for various diagnostic tests such as the COVID ELISA test and corona IgA test due to its immunogenic properties. The presence of nucleocapsid antibodies in patients is often measured through tests like the ELISA test which helps in diagnosing COVID-19. The nucleocapsid protein's involvement in COVID-19 progression connects it with other viral proteins highlighting its significance in disease mechanisms and potential therapeutic targeting.
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Specifications

Form

Lyophilized

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General info

Function

Packages the positive strand viral genome RNA into a helical ribonucleocapsid (RNP) and plays a fundamental role during virion assembly through its interactions with the viral genome and membrane protein M (PubMed : 33264373). Plays an important role in enhancing the efficiency of subgenomic viral RNA transcription as well as viral replication. Attenuates the stress granules formation by reducing host G3BP1 access to host mRNAs under stress conditions (PubMed : 34901782, PubMed : 36534661).. May block host chemokine function in vivo, facilitating viral replication and transmission (PubMed : 35921414). Acts by being secreted into the extracellular space where it competes to host chemokines for binding to host glycosaminoglycans (GAG) (PubMed : 35921414).. May induce inflammasome responses in cultured cells and mice. Acts by interacting with host NLRP3 to facilitate inflammasome assembly, which induces cytokine release that may play a role in COVID lung injury. Disrupts the association betwen NLRP3 and ABHD8, enhancing NLRP3 stability and leading to increased inflammasome activation (PubMed : 39225180).

Sequence similarities

Belongs to the betacoronavirus nucleocapsid protein family.

Post-translational modifications

ADP-ribosylated. The ADP-ribosylation is retained in the virion during infection.. Phosphorylated on serine residues by host GSK3A and GSK3B (PubMed:34593624, PubMed:35728038). This promotes the solubility of homodimers that would otherwise aggregate (PubMed:32974389). Host phosphatase would dephosphorylate the protein during assembly at M bound membranes (PubMed:32974389).. Proteolytically cleaved by host CASP6. The cleavage leads to two fragments and facilitates viral replication by inhibiting host IFN signaling. The two fragments may interact with IRF3 inhibiting its nuclear translocation after activation and reduce the expression of IFNB and IFN-stimulated genes.. Acetylated (PubMed:39135075). Deacetylated by host HDAC6 which promotes association of the viral N protein with human G3BP1, disrupting cellular stress granule formation and facilitating viral replication (PubMed:39135075).

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Product protocols

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Target data

Packages the positive strand viral genome RNA into a helical ribonucleocapsid (RNP) and plays a fundamental role during virion assembly through its interactions with the viral genome and membrane protein M (PubMed : 33264373). Plays an important role in enhancing the efficiency of subgenomic viral RNA transcription as well as viral replication. Attenuates the stress granules formation by reducing host G3BP1 access to host mRNAs under stress conditions (PubMed : 34901782, PubMed : 36534661).. May block host chemokine function in vivo, facilitating viral replication and transmission (PubMed : 35921414). Acts by being secreted into the extracellular space where it competes to host chemokines for binding to host glycosaminoglycans (GAG) (PubMed : 35921414).. May induce inflammasome responses in cultured cells and mice. Acts by interacting with host NLRP3 to facilitate inflammasome assembly, which induces cytokine release that may play a role in COVID lung injury. Disrupts the association betwen NLRP3 and ABHD8, enhancing NLRP3 stability and leading to increased inflammasome activation (PubMed : 39225180).
See full target information N mutated T205I + A12G
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