MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF Forebrain_P0_H3K27ac_16_172_0.559_6.87242e-141 letter-probability matrix: alength= 4 w= 8 nsites= 100 E= 1.0e-1 0.22 0.001 0.507 0.272 0.001 0.662 0.001 0.336 0.001 0.27 0.001 0.728 0.001 0.186 0.812 0.001 0.001 0.831 0.167 0.001 0.11 0.424 0.441 0.025 0.51 0.001 0.251 0.238 0.377 0.001 0.204 0.418