pyruvate(out) + Na(+)(out) = pyruvate(in) + Na(+)(in)
pyruvate(out) + na(+)(out) = pyruvate(in) + na(+)(in)
pyruvate(out) + Na(+)(out) = pyruvate(in) + Na(+)(in)
pyruvate(out) + na(+)(out) = pyruvate(in) + na(+)(in)