(A) RT-qPCR analysis of siFUS, siEWS, siTAF15, and siFUS+siEWS+siTAF15 transfected HEK293 cells. 13 candidate genes which expression was altered in the array analysis were chosen. RT-qPCR was performed in triplicates, and the gene expression was normalized to the expression of the housekeeping gene GAPDH [45]. The expression level as measured by RT-qPCR is shown in black, and the measured level in the array is shown in white. Standard deviations from the technical triplicates are shown. (B) FUS, EWS, and TAF15 protein expression in the siFUS, siEWS, and siTAF15 transfected HEK293 cells used in the expression analysis. Control cells are transfected with an equal amount of unspecific siRNA. The protein expression of the ubiquitously expressed protein hnRNPC1/C2 (heterogeneous nuclear ribonucleoprotein C (C1/C2)) is shown as loading control. (C) FUS, EWS, and TAF15 protein expression in the siFUS+siEWS+siTAF15 transfected HEK293 cells used in the expression analysis. Control cells are transfected with an equal amount of unspecific siRNA. The protein expression of hnRNPC1/C2 is shown as loading control.