2-oxoglutarate(out) + H(+)(out) => 2-oxoglutarate(in) + H(+)(in)
2-oxoglutarate(out) + h(+)(out) => 2-oxoglutarate(in) + h(+)(in)
2-oxoglutarate(out) + H(+)(out) => 2-oxoglutarate(in) + H(+)(in)
2-oxoglutarate(out) + h(+)(out) => 2-oxoglutarate(in) + h(+)(in)