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The phosphatidylinositol-3-phosphate 5-kinase inhibitor apilimod blocks filoviral entry and infection

Fig 8

Apilimod has no effect on cathepsin B+L activity.

Confluent dishes of BSC-1 cells were treated with the indicated concentration of apilimod, DMSO (mock), or 10 μM EST for 1 h at 37°C. The cells were then washed, lysed, and the pH adjusted to 5.0 in reaction buffer. Total cathepsin B+L activity was then assayed using the substrate Z-Phe-Arg-7-amido-4-methylcoumarin. Values represent average fluorescence units ± SD of triplicate samples.

Fig 8

doi: https://doi.org/10.1371/journal.pntd.0005540.g008