^{*} Defined as the consecutive (usually 4) highest conserved positions of the matrix. The maximum core similarity of 1.0 is only reached when the highest conserved bases of a matrix match exactly in the sequence.

^{**} Defined as the entire sequence of the putative DNA binding site. A perfect match to the matrix is indicated by a score of 1.0 (each sequence position corresponds to the highest conserved nucleotide at that position in the matrix), a statistically significant match to the matrix must show a similarity of >0.8.