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Figure 3 | BMC Evolutionary Biology

Figure 3

From: Motif types, motif locations and base composition patterns around the RNA polyadenylation site in microorganisms, plants and animals

Figure 3

Base composition pattern around polyadenylation [poly(A)] sites in honey bee ( Apis mellifera ), common fruit fly ( Drosophila melanogaster ), zebra finch ( Taeniopygia guttata ), mouse ( Mus musculus ), and human ( Homo sapiens ). Sequence logo (seqlogo) graphs were drawn based on the average base composition among mapped poly(A) sites. Position 31 in these seqlogo graphs is the poly(A) tail starting position (corresponding to position 1 in Figure 5). Position 30 in these seqlogo graphs is the poly(A) tail attachment position (corresponding to position −1 in Figure 5). Positions 13 and 22 in these seqlogo graphs correspond to positions −18 and −9 in Figure 5. Note that i) the poly(A) site showed a strong A predominance, and ii) the predominance at the poly(A) tail attachment position was U or C, depending on the species.

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