D-glucose(out) + Na(+)(out) => D-glucose(in) + Na(+)(in)
d-glucose(out) + na(+)(out) => d-glucose(in) + na(+)(in)
D-glucose(out) + Na(+)(out) => D-glucose(in) + Na(+)(in)
d-glucose(out) + na(+)(out) => d-glucose(in) + na(+)(in)