label: amino acid:monoatomic cation antiporter activity
label_lc: amino acid:monoatomic cation antiporter activity
description: "Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: solute(out) + monoatomic cation(in) = solute(in) + monoatomic cation(out). Monoatomic cations include H+, Mg2+, Ca2+, etc."