From: Pol II promoter prediction using characteristic 4-mer motifs: a machine learning approach
Rank
Frequency Difference
4-mer
1
564
TATA
2
438
ATAT
3
435
AAAA
4
431
ATAA
5
407
TAAA
6
373
GAAG
7
324
TTTT
8
312
9
302
AGAA
10
GGAA