
Alu siRNA expression in HeLa cells. (A) The length distribution of Alu-derived small RNAs in HeLa cells. y-axis: counts per million reads; x-axis: base length. (B) Distribution of Alu siRNAs corresponding to sense and antisense strands of consensus AluY, AluSz, and AluJb sequences (UCSC genome database). RNAs of 19 to 24 nt in length were used as siRNAs.










