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Figure S1. ^{239Tcellswere transfectedwith two dosesof plasmidsencoding Fyn, Src, or Yes, lysedinmodifiedRIPA buffer, andimmunoprecipitatedwith saturating amountsof antibodiesspecific for each kinase.(A) The sampleswere probedby immunoblotting with anti-panSrc.(B) To verify thatapproximately equal amountsof each kinase were recoveredby immunoprecipitation, the samplesfrom cellstransfectedwith the highestdose of plasmidwere also subjectedto silver staining.}