previous studies have demonstrated a na ( + ) -dependent decrease in the atp-generated acidification of endosomes and have attributed it to the presence of either a na ( + ) -h+ exchanger or a na ( + ) -k ( + ) -adenosinetriphosphatase ( atpase ) in parallel with the vacuolar h ( + ) -atpase .
C0001479
na
C0001473
atpase