MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF Cranio-Facial_E13.5_H3K27ac_4_168_0.560_1.134951e-153 letter-probability matrix: alength= 4 w= 8 nsites= 100 E= 1.0e-1 0.352 0.23 0.001 0.417 0.288 0.163 0.545 0.004 0.001 0.99 0.001 0.008 0.001 0.001 0.997 0.001 0.001 0.001 0.001 0.997 0.001 0.001 0.001 0.997 0.001 0.001 0.001 0.997 0.575 0.423 0.001 0.001