Fig 1. Human serine/threonine kinase siRNA library screen.

Effect of gene knockdown by siRNA on EV71 replication analysed from primary screen. 40% reduction in viral antigen positive cells was considered as the acceptable level of virus inhibition and positive hits are genes which resulted in a percentage of viral antigen positive cells of less than 60% upon the knockdown of these genes. As such, 6 genes have been identified as positive hits from the primary screen. First 6 bars represent siRNA controls used while the other bars represent the host serine/threonine kinases targeted in the screening. siRNA controls utilised included non-targeting siRNAs as well as siRNAs targeting several housekeeping genes. Values obtained in the graph were normalised against the mean of the transfection control (EV71-infected cells treated with only the transfection reagent).