Figure 2.

Consensus nucleotide sequences of four Can SINE subfamilies in canids. Consensus sequences of box A and box B of pol III promoter are shown above the alignment. The A nucleotide in the box B differing from the canonical consensus is given in orange. The TC-motif, polyadenylation signals (PASs), and pol III transcription terminator are indicated by asterisks of different colors. The boundaries of the tRNA-related sequence are marked by curly brackets. Plus signs indicate the insertion relative to lysine tRNA. Arrows indicate the distinctive characters of b1 and b2 subfamilies.