Quantification of yy2 , mbtps2 and yy1 in primary cells. Expression levels of yy2, mbtps2 and yy1 transcripts in the different primary cells (neurons, microglia and astrocytes) quantified by TaqMan real-time PCR. While mbtps2 and yy1 are strongly and constantly expressed in all cell types, yy2 is significantly reduced in neurons. Expression values are normalized to β-actin. (n = 3; ** p < 0.01).