comparison of the basal mg2 ( + ) -atpase activity ( with atp as substrate ) with the hydrolytic activity of ( h ( + ) +k+ ) -atpase using lin-benzo-atp as substrate and the effect of the inhibitors omeprazole and sch 28080 support the notion that lin-benzo-atp is not hydrolysed by the ( h ( + ) +k+ ) -atpase , but by the basal mg2 ( + ) -atpase , and that the activity of the latter enzyme is not involved in the ( h ( + ) +k+ ) -transporting reaction cycle ( according to the albers-post formalism ) of ( h ( + ) +k+ ) -atpase .
C0020291
hydrolytic
C0001473
atpase