MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF E044_H3K27ac_100_60_0.516_6.101654e-134 letter-probability matrix: alength= 4 w= 9 nsites= 100 E= 1.0e-1 0.03133 0.96867 0.0 0.0 0.26601 0.73399 0.0 0.0 0.018894 0.981106 0.0 0.0 0.078974 0.03122 0.889806 0.0 0.36011 0.63989 0.0 0.0 0.380923 0.588515 0.030562 0.0 0.0 0.120605 0.879395 0.0 0.767535 0.0 0.081599 0.150866 0.0 0.959732 0.040268 0.0