alpha-D-galactose 1-phosphate + dTTP + H(+) <=> dTDP-D-galactose + diphosphate
alpha-d-galactose 1-phosphate + dttp + h(+) <=> dtdp-d-galactose + diphosphate
alpha-D-galactose 1-phosphate + dTTP + H(+) <=> dTDP-D-galactose + diphosphate
alpha-d-galactose 1-phosphate + dttp + h(+) <=> dtdp-d-galactose + diphosphate