Keywords: 17-AAG, 17-N-allylamino-17-demethoxygeldanamycin; BSA, bovine serum albumin; Cy3, carbocyanin 3; DMSO, dimethylsulfoxid; FITC, fluoresceinisothiocyanat; GA, geldanamycin; HEPES, 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid; HSP, heat shock protein;