ID 7.2.2.4 DE ABC-type Na(+) transporter. CA ATP + H2O + Na(+)(in) = ADP + H(+) + Na(+)(out) + phosphate. CC -!- ABC-type (ATP-binding cassette-type) transporter, characterized by CC the presence of two similar ATP-binding domains/proteins and two CC integral membrane domains/proteins. CC -!- This bacterial enzyme, characterized from Bacillus subtilis, exports CC Na(+) ions out of the cell. cf. EC 7.2.2.1 and EC 7.2.2.3. DR P46903, NATA_BACSU ; P46904, NATB_BACSU ; //