Page 1 Page 2 0 500 1000 1500 2000 2500 All =1 ≥ 2 ≥ 3 ≥ 4 ≥ 5 ≥ 10 Sites per transcript No . of tran scri pts Real miRNAsShuffled miRNAs 53% 76%39% 30%24% 19%9%Page 3 A BPage 4