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. 2011 Feb 7;6(2):e16284. doi: 10.1371/journal.pone.0016284

Figure 4. Comparing Sf21 and Hi5 insect cells.

Figure 4

To optimize the expression system Sf21 cells were compared to Hi5 cells. (A) There was no significant difference in the amount of secreted NA activity observed for construct 3 or 4 in both cell lines. (B) Cell viability seemed to drop faster for Hi5 compared to Sf21 cells without affecting the amount of secreted NA activity. (C, D) Anti-FLAG western blot of construct 3- or 4-containing media showed a strong signal for both cell lines. Activity and viability data are duplicates of three independent infections. For the respective western blots the supernatants of all three infections were pooled.