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Updated: Aug 14, 2026

Isolation and Functional Analysis of Mitochondria from Cultured Cells and Mouse Tissue
Published on: March 23, 2015
The bioenergetics of Golgi apparatus function: evidence for an ATP-dependent proton pump
Abstract:
The energy requirement for the processing of newly-synthesized proteins by the Golgi was examined. Rat liver Golgi preparations enriched more than 100-fold have high ATPase activity that co-purified with the Golgi marker enzyme galactosyl transferase. The ATPase activity was 80% inhibited by dicyclohexylcarbodiimide and may represent a proton pump. Evidence is presented for a functional role of the ATPase in Golgi. First, measurement of [14C]methylamine uptake demonstrated ATP-dependent acidification. Second, inhibition of the ATPase with dicyclohexylcarbodiimide resulted in a 3-fold accumulation of newly-synthesized protein in the Golgi.
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