tokens: A single N-glycosylation site present in chicken gp42 is conserved among all five of these proteins : carbohydrate analysis of gp42 revealed the presence of a complex type glycan chain at this site .
folded_tokens: a single n-glycosylation site present in chicken gp42 be conserve among all five of these protein : carbohydrate analysis of gp42 reveal the presence of a complex type glycan chain at this site .