Additional file 4.

Figure S4 - A nuclear protein within melan-a cells binds SOXE2. EMSA demonstrating binding of ERBB3_MCS6 to a protein in melan-a nuclei at the SOXE-2 site. Nuclear extract binds free probe (Lane 1) and shifts it upwards (Lane 2). Addition of 500X (Lane 3) and 1000X (Lane 4) molar excess of unlabeled probes competes shift. Addition of cold unlabeled probe with a mutation in the SOXE-2 binding site does not compete away the shift (Lane 5).

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Prasad et al. BMC Developmental Biology 2011 11:40   doi:10.1186/1471-213X-11-40