Fig. 1From: DiNAMO: highly sensitive DNA motif discovery in high-throughput sequencing dataThe IUPAC character lattice. a definition of the IUPAC alphabet. Each IUPAC character corresponds to a subset of the DNA alphabet {A,C,G,T}. The level indicates the degeneracy level of each symbol, which is the cardinal of the subset. b the lattice of IUPAC characters constructed from the character latticeBack to article page