Product Detail
Product NameRecombinant Influenza B virus Nucleoprotein(NP)
Host SpeciesE.coli
PurificationGreater than 90% as determined by SDS-PAGE.
Immunogen DescExpression Region:1-560aa
Sequence Info:Full Length
Other NamesNucleocapsid protein ;Protein N
Accession NoP04665
Uniprot
P04665
Gene ID
26824002;
Calculated MW77.8 kDa
FormulationTris-based buffer50% glycerol
StorageThe 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.
Notes:Repeated freezing and thawing is not recommended. Store working aliquots at 4˚C for up to one week.
Tag InfoN-terminal 6xHis-SUMO-tagged
Application Details
Encapsidates the negative strand viral RNA, protecting it from nucleases. The encapsidated genomic RNA is termed the ribonucleoprotein (RNP) and serves as tplate for transcription and replication. The RNP needs to be localized in the 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 and is responsible of the active RNP import into the nucleus through the cellular importin alpha,beta pathway. Later in the infection, nucleus export of RNP are mediated through viral proteins NEP interacting with M1 which binds nucleoproteins. It is possible that the nucleoprotein binds directly exportin-1 (XPO1) and plays an active role in RNP nuclear export. M1 interaction with RNP ses 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 unmask nucleoprotein's nuclear localization signals, targeting the RNP to the nucleus .
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