The successive addition of three glucose residues by EC 2.4.1.267, EC 2.4.1.265 (dolichyl-P-Glc:Glc1Man9GlcNAc2-PP-dolichol ¦Á-1,3-glucosyltransferase) and EC 2.4.1.256 (dolichyl-P-Glc:Glc2Man9GlcNAc2-PP-dolichol ¦Á-1,2-glucosyltransferase) represents the final stage of the lipid-linked oligosaccharide assembly.