question: What is the mechanism of action of geldanamycin?
answer: Geldanamycin is an ansamycin antibiotic which holds the ability to bind heat-shock protein 90. This interaction can lead to the disruption of heat-shock protein 90-containing multimolecular complexes. Additionally, it can induce inhibition or even degradation of partner proteins dissociated from the 90 kDa chaperone and, eventually, cause apoptosis in a variety of cell types.