4-aminobutanoate(out) + chloride(out) + 2 Na(+)(out) = 4-aminobutanoate(in) + chloride(in) + 2 Na(+)(in)
4-aminobutanoate(out) + chloride(out) + 2 na(+)(out) = 4-aminobutanoate(in) + chloride(in) + 2 na(+)(in)