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Localization of splicing factors in the nucleus of human mammary epithelial cell (T4) using correlated fluorescence and x-ray microscopy. Splicing factors tagged with FluoroNanogold® secondary antibodies can be seen using confocal microscopy (inset). The same splicing factors can be found in the x-ray microscope projection image after silver enhancement of the nanogold particles. Scale bar = 2 μm.
