Fig. 4

Cartoon of the H⁺ATPase found in visceral yolk sac (a) and olfactory epithelium (b). The subunits are labelled with capitals for the V₁ domain and lower case for the V₀ domain. Differences between the locations are shaded.The schematic is based on the proposed structure of yeast V-ATPases [48] with the third EG dimer not shown