<p>(<b>A</b>) Proliferation of NM1 KO cells (NM1 −/−) is not altered in comparison to WT cells (NM1 +/+). 1×10<sup>5</sup> cells were seeded on plates (20% confluence; day 0) and let to grow for six days when number of cells was counted again (day 6). (<b>B</b>) Pol I transcription rate in NM1 KO (NM1 −/−) and WT (NM1 +/+) cells is equal. RNA from exponentially growing cells was isolated and expression of 45S pre-rRNA was measured by RT-qPCR. Expression of 45S pre-rRNA is compared relatively to GAPDH expression. Data are presented as mean +/− SD.</p
