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Fig. 3 | Virology Journal

Fig. 3

From: Impaired influenza A virus replication by the host restriction factor SAMHD1 which inhibited by PA-mediated dephosphorylation of the host transcription factor IRF3

Fig. 3

Effect of H5N1 infection dose on SAMHD1 protein levels and RNA levels in A549 cells. A549 cells were infected with H5N1 at an MOI of 0.2, 1.0, or 1.5 (A). The cells were harvested at 48 h post infection. Immunoblotting (IB) analysis of H5N1 NP and SAMHD1 in cells was performed, with GAPDH as a loading control (A). The expression levels of SAMHD1 protein were quantified as described before. H5N1 NP (B) and SAMHD1 (C) RNA levels in cell lysates were detected by RT‒qPCR and normalized to GAPDH, and the RNA level in A549 cells at 0 h post infection was set as 1. Data are the mean ± SD of three independent experiments. The results are representative of those from three independent repeats (mean ± SD, * p < 0.05, ** p < 0.01, ***p < 0.001, paired t test)

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Virology Journal

ISSN: 1743-422X