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Occurrence of the W = WWNTTACTGACRR and W′ = YYGTCAGTAANWW words at specific positions with respect to another W nearby in the genomic sequence. Position 0 signifies that the two words completely overlap. Positive and negative coordinates indicate positions downstream and upstream, respectively, from position 0. Only positive coordinates are shown in the top panel because the plot is symmetrical about 0.
