MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF Midbrain_P0_H3K4me1_54_103_0.521_2.829708e-18 letter-probability matrix: alength= 4 w= 12 nsites= 100 E= 1.0e-1 0.899403 0.0 0.092334 0.008263 0.843711 0.132424 0.0 0.023864 0.027845 0.286835 0.053712 0.631609 0.799188 0.0 0.0 0.200812 0.90021 0.025132 0.013646 0.061012 0.889781 0.032308 0.072364 0.005547 0.039119 0.012429 0.778365 0.170087 0.018708 0.772334 0.018053 0.190904 0.017007 0.933934 0.01389 0.035169 0.033159 0.812587 0.018686 0.135567 0.012304 0.665749 0.295751 0.026196 0.885368 0.082824 0.016687 0.015121