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Fig. 4. DNAseI protection experiments with candidate transacting factors on
bap3.2.1 enhancer DNA.
32P-labelled probe was
tested with two different amounts (1x and 3x, see Materials and
methods) of bacterially expressed GST-fusion proteins of Bap, Tin, Slp, Mad,
Medea and Bin, as well as BSA as a control. C+T sequencing ladder is shown on
the left of each blot and a schematic drawing of protected regions on the
right.