Recombinant Influenza A virus Nucleoprotein (NP)

CSB-EP304802IMB

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Size:

20ug100ug1mg(1mg*1 or 500ug*2)

US$388

Quantity:

Express system: E.coli

Species: Influenza A virus (strain A/Beijing/353/1989 H3N2)

Tag Info: N-terminal 6xHis-SUMO-tagged

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Target Background

Product Details

Purity

Greater than 90% as determined by SDS-PAGE.

Target Names

Uniprot NO.

P69291

Research Area

Microbiology

Alternative Names

Nucleocapsid protein Short name: Protein N

Species

Influenza A virus (strain A/Beijing/353/1989 H3N2)

Source

E.coli

Expression Region

1-498aa

Target Protein Sequence

MASQGTKRSYEQMETDGERQNATEIRASVGKMIDGIGRFYIQMCTELKLSDYEGRLIQNSLTVERMVLSAFDERRNRYLEEHPSAGKDPKKTGGPIYKRVGGRWMRELVLYDKEEIRRIWRQANNGDDATRGLTHMMIWHSNLNDTTYQRTRALVRTGMDPRMCSLMQGSTLPRRSGAAGAAVKGIGTMVMELIRMIKRGINDRNFWRGENGRKTRSAYERMCNILKGKFQTAAQRAMMDQVRESRNPGNAEIEDLIFSARSALILRGSVAHKSCLPACVYGPAVSSGYDFEKEGYSLVGIDPFKLLQNSQVYSLIRPNENPAHKSQLVWMACHSAAFEDLRLLSFIRGTKVSPRGKLSTRGVQIASNENMDNMESSTLELRSRYWAIRTRSGGNTNQQRASAGQISVQPTFSVQRNLPFEKSTVMAAFTGNTEGRTSDMRAEIIRMMEGAKPEEVSFRGRGVFELSDEKATNPIVPSFDMSNEGSYFFGDNAEEYDN

Mol. Weight

72.2kDa

Protein Length

Full Length

Tag Info

N-terminal 6xHis-SUMO-tagged

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Storage

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

3-7 business days

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Troubleshooting and FAQs

Protein FAQs

Datasheet & COA

Please contact us to get it.

Images

(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP304802IMB could indicate that this peptide derived from E.coli-expressed Influenza A virus (strain A/Beijing/353/1989 H3N2) NP.
Based on the SEQUEST from database of E.coli host and target protein, the LC-MS/MS Analysis result of CSB-EP304802IMB could indicate that this peptide derived from E.coli-expressed Influenza A virus (strain A/Beijing/353/1989 H3N2) NP.

Description

Constructing a plasmid that codes for the Influenza A virus (strain A/Beijing/353/1989 H3N2) Nucleoprotein protein (1-498aa) initiates the generation of the recombinant Influenza A virus (strain A/Beijing/353/1989 H3N2) Nucleoprotein protein. The constructed plasmid is transformed into 1-498aa cells. Positive e.coli cells are selected and then cultured under conditions that encourage the expression of the gene of interest. The protein is equipped with a N-terminal 6xHis-SUMO tag. After that, affinity purification is employed to isolate and purify the recombinant Nucleoprotein protein from the cell lysate. The purity of the resulting recombinant Nucleoprotein protein is over 90%, determined by SDS-PAGE.

Customer Reviews and Q&A

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■ Q&A

About CSB-EP304802IMB , I would like to know if these nucleoprotein is able to detect all the different antibodies directed against influenza virus A and B. I would like to us these protein for a novel assay and would like to check the suitability of these protein. Please advise.

Thanks for your inquiry. This protein is full length protein, and it could detect all corresponding antibodies in theory. But we can't guarantee 100% recognition.

Target Background

Function

Encapsidates the negative strand viral RNA, protecting it from nucleases. The encapsidated genomic RNA is termed the ribonucleoprotein (RNP) and serves as template for transcription and replication. The RNP needs to be localized in the host nucleus to start an infectious cycle, but is too large to diffuse through the nuclear pore complex. NP comprises at least 2 nuclear localization signals that are responsible for the active RNP import into the nucleus through cellular importin alpha/beta pathway. Later in the infection, nclear export of RNPs are mediated through viral proteins NEP interacting with M1 which binds nucleoproteins. It is possible that nucleoprotein binds directly host exportin-1/XPO1 and plays an active role in RNPs nuclear export. M1 interaction with RNP seems to hide nucleoprotein's nuclear localization signals. Soon after a virion infects a new cell, M1 dissociates from the RNP under acidification of the virion driven by M2 protein. Dissociation of M1 from RNP unmasks nucleoprotein's nuclear localization signals, targeting the RNP to the nucleus.

Subcellular Location

Virion. Host nucleus.

Protein Families

Influenza viruses nucleoprotein family

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