Figure 6From: RNase MRP and the RNA processing cascade in the eukaryotic ancestorSummary diagram of MRP-RNA secondary structure. Black features (P1, P2, P3a, P4, P5, P7) are universally present. Green features are nearly universal, red features are observed in a few organisms of limited phylogenetic range. Thick lines are paired regions while unpaired regions are shown as thin lines. Conserved sequence motifs are indicated for the P4 (5' and 3') P8 and CRIV regions.Back to article page