MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF Midbrain_E15.5_H3K4me3_32_14_0.662_2.563707e-320 letter-probability matrix: alength= 4 w= 13 nsites= 100 E= 1.0e-1 0.019015 0.938438 0.024088 0.01846 0.00836 0.01229 0.914947 0.064403 0.012675 0.930432 0.023249 0.033645 0.041382 0.54498 0.027967 0.385672 0.118294 0.764891 0.043691 0.073125 0.018018 0.934128 0.034866 0.012988 0.039533 0.616329 0.022749 0.32139 0.052693 0.745966 0.043694 0.157646 0.029325 0.006879 0.918225 0.045572 0.0 0.0 1.0 0.0 0.409956 0.046306 0.523058 0.020681 0.498498 0.39549 0.079411 0.026601 0.0 0.031794 0.968206 0.0