Figure 1From: A map of human microRNA variation uncovers unexpectedly high levels of variabilityStructure of a pre-miRNA, an miRNA precursor. Top: distribution of all the variants observed in all the populations analyzed across the different substructures of the pre-miRNA. Bottom: the theoretical pre-miRNA. The mature miRNA is composed of the seed miR 5' and the rest of miR 5' (and the other mature miRNA is the same for the 3').Back to article page