Figure 6. Effect of CAT, CAC, CAG or CAA in the E-box motif (CAN∣NTG) on binding of TCF4-GST to 5hmC and Cytosine.
A. E-box half site CAT∣NTG motifs binding DNA containing cytosine or 5hmC. ACAT∣GTG is only well bound with 5hmC, while CAT∣CTG is only bound with cytosine. B. E-box half site CAC∣NTG motifs binding DNA containing cytosine or 5hmC. Similar to CAT∣NTG, E-box motifs containing ACAC∣GTG preferentially bind DNA containing 5hmC, while CAC∣CTG preferentially binds DNA containing cytosine. C. E-box half site CAG∣NTG motifs binding DNA containing cytosine or 5hmC produces a more complex pattern. D. E-box motifs containing CAA∣NTG with cytosine or 5hmC are not well bound by TCF4-GST. DNA 8-mers containing E-box are red spots, 8-mers with a cytosine are black.