(S)-malate(in) + 2 H(+)(in) <=> (S)-malate(out) + 2 H(+)(out)
(s)-malate(in) + 2 h(+)(in) <=> (s)-malate(out) + 2 h(+)(out)
(S)-malate(in) + 2 H(+)(in) <=> (S)-malate(out) + 2 H(+)(out)
(s)-malate(in) + 2 h(+)(in) <=> (s)-malate(out) + 2 h(+)(out)