References
PMID:8805275
PMID:8910277
PMID:9744077
PMID:10023776
PMID:11728826
GTP-bound Rac1 activates PAK1,2,3.
The binding of the active GTP form of Rac1 and the PBD domain of PAK1,2,3 promotes autophosphorylation of PAK1,2,3 and activation of JNK pathway.