MEME version 4 ALPHABET= ACGT strands: + - Background letter frequencies A 0.25 C 0.25 G 0.25 T 0.25 MOTIF E018_H3K27me3_20_171_0.508_3.572456e-14 letter-probability matrix: alength= 4 w= 12 nsites= 100 E= 1.0e-1 0.001 0.997 0.001 0.001 0.001 0.001 0.001 0.997 0.001 0.997 0.001 0.001 0.001 0.001 0.001 0.997 0.015 0.983 0.001 0.001 0.997 0.001 0.001 0.001 0.001 0.997 0.001 0.001 0.001 0.001 0.001 0.997 0.997 0.001 0.001 0.001 0.001 0.001 0.001 0.997 0.001 0.997 0.001 0.001 0.001 0.001 0.001 0.997