Figure 6: (a) Heat map showing differential expression between brain and mouse embryonic stem cells of ncRNAs spotted on the DNA-LNA microarray. Up- and downregulation of ncRNAs in brain are indicated with red or green color, respectively. Only differential expression of at least two folds is indicated. (b) Northern blot showing expression of SNORD55 and SNORA71 in mouse embryonic stem cells and mouse brain. Ten micrograms of total RNA were used, and 5.8S rRNA was used as a loading control.