D-galactose + alpha-D-glucose 1-phosphate => solabiose + phosphate
d-galactose + alpha-d-glucose 1-phosphate => solabiose + phosphate
D-galactose + alpha-D-glucose 1-phosphate => solabiose + phosphate
d-galactose + alpha-d-glucose 1-phosphate => solabiose + phosphate