Table 1.

Analysis of the most abundant short sequences

		Initial library (control)	Pool 1	Pool 2	Pool 3	Pool 4	Pool 5	Pool 6	Pool 7
Length (nt)		45	50	47	47	47	47	47	54, 46, 42
Normalized abundance		0.157%	0.27%	8.08%	9.43%	7.28%	11.01%	13.13%	28.44%, 22.68%, 26.52%
Motif		CGTACTAC	CAGGTAGGGT	GGAGCCA	GGAGCCA	GGAGCCA	GGAGCCA	GGAGCCA	CGTGCTACCGTGAA, GAGCCA,
Normalized abundance of motif	Perfect match	0.004%	0.13%	5.04%	5.93%	4.82%	7.71%	6.57%	14.06%, 6.71%
	1 mismatch	0.024%	0.17%	6.75%	8.98%	6.95%	10.15%	8.40%	16.93%,9.27%
	MEME*	0.035%	0.18%	6.79%	9.18%	7.02%	10.49%	8.61%	20.45%,9.27%

^*The p-value is equal to or smaller than 0.05 in MEME.