DDX11 and melanoma: Since it been reported that DDX11 has a dynamic localization during mitosis[7], we performed in addition to the immunohistochemistry and immunoblot analyses, a DDX11-based immunofluorescence analysis of WM1158 MGP melanoma cells, which as shown in Figure 1B, lane d, exhibited clearly detectable expression of the 108 kD DDX11 protein.