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Recombinant Influenza A Virus NA, His-tagged

Cat.No.: NA-283I
Product Overview: Recombinant Influenza A Virus NA (Accession # AAF77036) Ser37-Lys469, fused with an N-terminal 6-His tag, was produced in Spodoptera frugiperda, Sf 21 (baculovirus)-derived.
Source: Baculovirus Sf 21 Insect cells
Species: Influenza A Virus
Tag: His
Predicted N Terminal: His
Form: Supplied as a 0.2 µm filtered solution in Tris-HCl and NaCl.
Bio-activity: Measured by its ability to cleave a fluorogenic substrate, 2"-(4-Methylumbelliferyl)-alpha -D-N-acetylneuraminic acid. The specific activity is >2,500 pmol/min/µg, as measured under the described conditions. See Activity Assay Protocol on www.RnDSystems.com.
Molecular Mass: Recombinant Influenza A Virus NA, His-tagged has a calculated MW of 48 kDa. In SDS-PAGE migrates as 57 kDa, reducing conditions.
Purity: >80%, by SDS-PAGE under reducing conditions and visualized by silver stain.
Storage: Avoid repeated freeze-thaw cycles. No activity loss was observed after storage at: In lyophilized state for 1 year (4ºC); After reconstitution under sterile conditions for 3 months (-70ºC).

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