alpha-D-galactosyl group
alpha-d-galactosyl group
A galactosyl group obtained by removing the hydroxy group from the hemiacetal function of α-<small>D</small>-galactose and, by extension, of a lower oligosaccharide having α-<small>D</small>-galactose at the reducing end. The unsubstituted parent of the class of α-<small>D</small>-galactosyl groups.