ID 7.2.2.18 DE ABC-type ferric citrate transporter. AN ferric citrate ABC transporter. AN ferric citrate transporting ATPase. CA ATP + H2O + iron(III) dicitrate(out) = ADP + H(+) + iron(III) CA dicitrate(in) + phosphate. CC -!- An ATP-binding cassette (ABC) type transporter, characterized by the CC presence of two similar ATP-binding domains/proteins and two integral CC membrane domains/proteins. CC -!- The enzyme from Escherichia coli interacts with a periplasmic CC substrate binding protein and mediates the high affinity uptake of CC Fe(3+)-citrate in the form of a mononuclear (containing one iron(III) CC ion and two citrate molecules) or dinuclear (containing 2 iron(III) CC ions) complexes. DR P15031, FECE_ECOLI ; //