Macrolide antibiotic. Specific vacuolar-type H+-ATPase inhibitor. Distinguishes among different types of ATPases. Inhibitor of endosomal, lysosomal and vacuolar acidification. Prevents lysosomal Ca2+ uptake. Inhibitor of autophagic degradation by rising pH and thus inactivating the lysosomal acid hydrolases. Neuroprotective.
Purity: >98% (HPLC)
Appearance: White to off-white powder
Source: Isolated from Streptomyces griseus