Comparison of HAmo SINE and two other tRNAlys-derived SINE families: SmaI and FokI family [47–49]. We divided the HAmo SINE into three parts that show different similarity with other two SINEs, respectively. The tRNA-derived region of three SINE families and the tRNAlys (CUU) in rabbit  are aligned. The different family-specific regions revealed they were generated independently. The tail regions of these SINEs and their partner LINEs tail are compared. When most of nucleotides at a given position are identical, they are shaded.