
Anti-Rac1 (Phospho-Ser71) — Y011203 — is a rabbit polyclonal antibody detecting RAC1 (~21–28 kDa) phosphorylated at Ser71 by Akt — a modification that selectively uncouples Rac1 from PAK1/2/3 effectors while the GTPase remains GTP-bound, representing an Akt-mediated feedback on Rac1 effector selectivity. Note: may co-detect pSer71 CDC42. Validated for WB, IHC, and IF. Store at –20 °C.