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Influenza A Nucleocapsid Protein

Influenza A  Nucleocapsid Protein
Influenza A Nucleocapsid Protein
  • Cat.No: A99901

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Product Information:




E. coli


 Influenza A virus (strain A/Hong Kong/1/1968 H3N2)

Molecular Mass:

58 kDa

Expression Host:

HEK293 cells


Purified, Liquid


Phosphate Buffered Saline,5%mannital,0.05% Tween20, pH7.4


>95% pure (SDS-PAGE). 


For long term storage, the product should be stored at -20°C or lower.


Please avoid repeated freeze-thaw cycles.


Influenza is an infectious respiratory disease; in humans, it is caused by influenza A (genus influenzavirus A) and influenza B (genus influenzavirus B) viruses (influenzavirus C and influenzavirus D genera are also known).Influenza A virus (IAV) is a negative-stranded RNA virus. The IAV genome is divided into eight segments that encode 11 viral proteins in total (HA, NA, M1, M2, NP, NS1, NS2, PA, PB1, PB2, and PB1-F2). The viral envelope of IAV contains the transmembrane proteins HA, NA, and M2.

The IAV recognizes specific receptors expressed on the host cell surface using HA and enters cells via endocytosis. After fusion of the viral envelope and endosomal membrane, vRNPs are released into the cytoplasm and translocate into the nucleus to initiate replication. Newly synthesized vRNPs are exported to the cytoplasm, and assembly of progeny virions occurs near the plasma membrane. NA facilitates budding of new virions from host cells.


Figure.1 Struce of Influenza A Virus

Figure.2  Replication Process of Influenza A Virurs 


          [1] Jung HE, Lee HK. 2020. Viruses. 12(5: 504.

          [2] Krammer F, et al. 2018. Nat Rev Dis Primers. 4(1: 3.