biantennary Man5GlcNAc2 dolichyl disphosphate + VSG221 coat glycoprotein = dolichyl disphosphate + protein with oligosaccharide attached to protein L-asparagine
dolichyl diphosphooligosaccharide + asparagine-asparagine-threonine-NH2 acceptor peptide = dolichyl disphosphate + protein with oligosaccharide attached to protein L-asparagine
triantennary Man9GlcNAc2 dolichyl disphosphate + VSG221 coat glycoprotein = dolichyl disphosphate + protein with oligosaccharide attached to protein L-asparagine