Active 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.

Specification

• Species: Influenza A Virus
• Source: Sf21 Cells
• Tag: His
• ProteinLength: 37-469 a.a.
• 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).