MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF Neural-Tube_E15.5_H3K9ac_31_166_0.634_0 letter-probability matrix: alength= 4 w= 8 nsites= 100 E= 1.0e-1 0.001 0.997 0.001 0.001 0.001 0.001 0.997 0.001 0.001 0.303 0.695 0.001 0.543 0.001 0.455 0.001 0.001 0.001 0.656 0.342 0.001 0.997 0.001 0.001 0.001 0.001 0.001 0.997 0.001 0.001 0.625 0.373