Fig 6. HBZ augments formation of the MafG complex on all three distal MAREs in vitro.

In EMSAs, the indicated combinations of recombinant, purified MafG-His (0.5 nM), GST-HBZ (50 or 500 nM), and T7-HBZ-bZIP (50 or 500 nM) were combined with the indicated DNA probes (sequences shown below) prior to electrophoretic separation of complexes. The arrow denotes the shifted protein/DNA complex, the asterisk denotes unbound probe.