Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: 2-keto-3-deoxygluconate(out) + H+(out) = 2-keto-3-deoxygluconate(in) + H+(in).
Catalysis of the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: 2-keto-3-deoxygluconate(out) + H+(out) = 2-keto-3-deoxygluconate(in) + H+(in). (en)