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Assay Method Information

Assay Name:  Enzyme Assay
Description:  Virus propagation: Influenza A/Brisbane/59/2007 (H1N1) virus was propagated in Madin-Darby Canine Kidney (MDCK) cells. Seed virus was inoculated into 10 confluent 75 cm2 monolayers which were incubated at 37 ° C. for 2-3 days and harvested when full cytopathic effect was observed. Virus purification: The pooled cell lysates were frozen and thawed and clarified by centrifugation at 3000 g for 20 mM. The supernatant was subjected to ultracentrifugation at 25,000 rpm for 90 min and the virus containing pellet was resuspended in 2 mL of MegaVir medium (Hyclone). Virus concentration was assessed by hemagglutination (HA) at 40,960 HA units. Virus inactivation: NP40 (Fluka) was added to the purified influenza virus at a final concentration of 0.2% and the mixture was incubated at room temperature for a total of 3 hours and at 4 ° C. for 6 h. The inactivation of the virus was confirmed by the Tissue Culture Infectious Dose assay.
Affinity data for this assay
 

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Last update November 1, 2007
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