Zta binding to DNA 8-mers with either 5mC or 5mCG. Z-scores for Zta binding to
8-mers with one cytosine in a CG dinucleotide with 5mC in one strand (x-axis),
or those in which both cytosines in the CG dinucleotide are methylated (y-axis)
are shown as black spots. 8-mers with the CG dinucleotide at the beginning of
the 8-mer (
C−4G−3DDDDD,
where D=
A,
G, or T)
are shown in blue and those with the CG dinucleotide at
C2G3 (
DDDDC2G3D)
are shown in magenta. As a control, cytosine containing 8-mers for paired
experiments in which the double-stranding reaction contained unmodified
cytosines are depicted in gray. A sequence logo generated using the top 20
8-mers bound when both cytosines in the CG dinucleotide are methylated is
shown.