passages.id: 1.0alpha7.train.1277.sent
passages.type: sentence
passages.text: These analyses were complemented by DNase I footprint analyses, wherein HMG-I(Y) increased PU.1 binding to the μB site (Fig. 2 D, compare lanes 3 and4) as evidenced by formation of a DNase I-hypersensitive site (arrow) characteristic of PU.1 binding μB at high PU.1 concentrations (lane 2).
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