L-phenylalanine(in) + Na(+)(in) <=> L-phenylalanine(out) + Na(+)(out)
l-phenylalanine(in) + na(+)(in) <=> l-phenylalanine(out) + na(+)(out)
L-phenylalanine(in) + Na(+)(in) <=> L-phenylalanine(out) + Na(+)(out)
l-phenylalanine(in) + na(+)(in) <=> l-phenylalanine(out) + na(+)(out)