Figure 4: Inhibition by MNQO of tripartite complex proteins that mediate melanosome transport.

Levels of Rab27a, Mlph and MyoVa (A) and MITF proteins (B) were measured in melanocytes by western blotting. The melan-a melanocytes were treated with 2 μM, 10 μM and 20 μM MNQO, or with 0.1% DMSO for 72 h. (C) Quantification of Rab27a, Mlph, MyoVa and MITF protein expression level. Values are mean value of expression normalized to β-actin from three independent experiments ± SD.