Cultured primary microglia were lysed with a buffer containing 1% Triton X-100, 150 mM NaCl, 10 mM NaH2PO4, 15 mM Na2HPO4, 50 mM NaF, 1 mM EDTA, and 1 mM Na3VO4. Cell lysates (500 μg) were incubated with an MJFF2 LRRK2 antibody (5 μL/rxn) and further incubated with agarose-G (20 μL, 50% slurry). After washing three times with lysis buffer, Rac1 (1:3,000, Millipore) and LRRK2 (1/1,000, Millipore) were used to detect the levels of protein bound to rat LRRK2 by Western Blot.
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