Signaling pathways modulated by RAC1 mutants. (A) Significance analysis of microarray for RPPA of parental melan-a cells and melan-a cells expressing RAC1 WT, RAC1 P29S, and RAC1 Q61L. Expression was normalized to the mean. (B) Venn diagram depicting number of proteins significantly regulated in, between, and among melan-a cells expressing RAC1 WT, RAC1 P29S, and RAC1 Q61L. (C) Top ten KEGG pathways enriched in the 42 proteins similarly regulated by RAC1 WT, RAC1 P29S, and RAC1 Q61L.