ID   7.2.3.1
DE   Na(+)-exporting diphosphatase.
AN   Na(+)-translocating membrane pyrophosphatase.
AN   sodium-translocating pyrophosphatase.
CA   diphosphate + H2O + Na(+)(in) = H(+) + Na(+)(out) + 2 phosphate.
CC   -!- Requires Na(+) and K(+).
CC   -!- This enzyme, found in some bacteria and archaea, couples the energy
CC       from diphosphate hydrolysis to active sodium translocation across the
CC       membrane.
CC   -!- The enzyme is electrogenic, as the Na(+) transport results in
CC       generation of a positive potential in the inner side of the membrane.
CC   -!- Formerly EC 7.1.3.2.
DR   Q8TJA9, HPPA1_METAC;  Q8PYZ8, HPPA1_METMA;  Q2RIS7, HPPA1_MOOTA;
DR   Q8A294, HPPA_BACTN ;  Q898Q9, HPPA_CLOTE ;  Q8RHJ2, HPPA_FUSNN ;
DR   Q8VNJ8, HPPA_HELCL ;  Q72Q29, HPPA_LEPIC ;  Q8F641, HPPA_LEPIN ;
DR   Q93NB7, HPPA_MYXXA ;  Q8VPZ0, HPPA_RHIRD ;  Q9S5X0, HPPA_THEMA ;
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