... use the erythropoietin receptor (EpoR)-inducedactivation of ERK1 in the hematopoietic suspensioncell line, BaF3-hemaglutinin-tagged (HA)-EpoR, andthe interleukin-6 (IL-6)-induced activation ... whileblotting errors are caused by inhomogeneities of thegel or the blot.Eliminating correlated errors by randomizedsample loadingTo determine steps predominantly contributing to theerror obtained ... heat shock cognate protein 70; IL-6, interleukin-6;IP, immunoprecipitation; MAP kinase, mitogen-activated protein kinase; PDI, protein disulfide isomerase; PVDF, poly(vinylidene difluoride);STAT,...