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Table 2 Transcription factor binding site sequence similarity. Examples of the three classes of degeneracy in binding site sequence motifs. For motif pairs with exact coverage, the less restrictive motifs were used. Motif pairs in the partial coverage and single difference categories were merged into a composite motif.

From: The distribution of SNPs in human gene regulatory regions

Category Pair Number Binding Site Examples
   Sequence Site Name
Exact Coverage 310 YYCCGCCC
CCCCGCCC
EARLY-SEQ1
(Sp1)-TK.1
Partial Coverage 1,114 TGGNNNNNNGCCA
YTGGCANNNTGCCAR
NFI_CS3
TGGCA_RS
Single Difference 833 TKCTGATTGTYTMM
TKCTGATTGGYTMM
E-alpha_Y_box
NF-Y_CS