Kit Components R0400-55A: PAK-1 PBD, agarose. 1x300ug of PAK-1 PBD bound to 150ul of glutathione agarose beads, provided as a 50% slurry in 20mM PBS, pH 7.4, containing 50% glycerol for a final volume of 300ul. R0400-55B: Rac1 Mab: 1x250ug in 250ul of 0.