GO_term: GO:0015012   

GO:0015012	Definition	The formation from simpler components of the heparan sulfate, a glycosaminoglycan with repeat unit consisting of alternating (alpha1->4)-linked hexuronic acid and glucosamine residues; the former are a mixture of sulfated and nonsulfated D-glucuronic acid and L-iduronic acid; the L-iduronic acid is either sulfated or acetylated on its amino group as well as being sulfated on one of its hydroxyl groups; heparan sulfate chains are covalently linked to peptidyl-serine by a glycosidic attachment through the trisaccharide galactosyl-galactosyl-xylosyl to serine residues.
		The formation from simpler components of the heparan sulfate proteoglycan, a glycosaminoglycan with repeat unit consisting of alternating (alpha1->4)-linked hexuronic acid and glucosamine residues; the former are a mixture of sulfated and nonsulfated D-glucuronic acid and L-iduronic acid; the L-iduronic acid is either sulfated or acetylated on its amino group as well as being sulfated on one of its hydroxyl groups; heparan sulfate chains are covalently linked to peptidyl-serine by a glycosidic attachment through the trisaccharide galactosyl-galactosyl-xylosyl to serine residues.
	Term	heparan sulfate proteoglycan biosynthesis
	Type	Biological_process
	Child	Component	GO:0015014
			GO:0015015
			GO:0015013
	Parent	Instance_of	GO:0030166
			GO:0030201
			GO:0044272
	Attributes_of	Index	Ancestor (62)
			Descendent (11)

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