Membrane transporters that co-transport two or more dissimilar molecules in the opposite direction across a membrane. Usually the transport of one ion or molecule is against its electrochemical gradient and is "powered" by the movement of another ion or molecule with its electrochemical gradient.

Synonyms: 0, Antiporter, Anion Exchange Proteins, Cation Exchange Proteins, Exchange Proteins, Anion, Anion Exchangers (Proteins), Exchange Proteins, Cation, Antiporters, Cation Exchangers (Proteins)