MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF E100_H3K27ac_90_222_0.507_6.238284e-34 letter-probability matrix: alength= 4 w= 8 nsites= 100 E= 1.0e-1 0.001 0.001 0.997 0.001 0.001 0.997 0.001 0.001 0.001 0.001 0.001 0.997 0.001 0.001 0.001 0.997 0.387 0.001 0.001 0.611 0.001 0.001 0.997 0.001 0.001 0.997 0.001 0.001 0.001 0.001 0.997 0.001