PNAS 1988-11-01

Bafilomycins: a class of inhibitors of membrane ATPases from microorganisms, animal cells, and plant cells.

E J Bowman, A Siebers, K Altendorf

Index: Proc. Natl. Acad. Sci. U. S. A. 85 , 7972, (1988)

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Abstract

Various membrane ATPases have been tested for their sensitivity to bafilomycin A1, a macrolide antibiotic. F1F0 ATPases from bacteria and mitochondria are not affected by this antibiotic. In contrast, E1E2 ATPases--e.g., the K+-dependent (Kdp) ATPase from Escherichia coli, the Na+,K+-ATPase from ox brain, and the Ca2+-ATPase from sarcoplasmic reticulum--are moderately sensitive to this inhibitor. Finally, membrane ATPases from Neurospora vacuoles, chromaffin granules, and plant vacuoles are extremely sensitive. From this we conclude that bafilomycin A1 is a valuable tool for distinguishing among the three different types of ATPases and represents the first relatively specific potent inhibitor of vacuolar ATPases.

Related Compounds

  • Bafilomycin A1
  • Bafilomycin B1

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