BP

GO:0006024

glycosaminoglycan biosynthetic process

The chemical reactions and pathways resulting in the formation of glycosaminoglycans, any of a group of polysaccharides that contain amino sugars.

TAS

BP

GO:0015012

heparan sulfate proteoglycan biosynthetic process

The chemical reactions and pathways resulting in the formation of the heparan sulfate proteoglycan, a glycosaminoglycan with repeat unit consisting of alternating alpha-(1->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.

TAS

BP

GO:0015015

heparan sulfate proteoglycan biosynthetic process, enzymatic modification

The modification, often by sulfation, of sugars incorporated into heparan sulfate after polymerization.

TAS

CC

GO:0000139

Golgi membrane

The lipid bilayer surrounding any of the compartments of the Golgi apparatus.

TAS

CC

GO:0005887

integral component of plasma membrane

The component of the plasma membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.

TAS

MF

GO:0008467

[heparan sulfate]-glucosamine 3-sulfotransferase 1 activity

Catalysis of the reaction: 3'-phosphoadenylyl sulfate + [heparan sulfate]-glucosamine = adenosine 3',5'-bisphosphate + [heparan sulfate]-glucosamine 3-sulfate. The [heparan sulfate]-glucosamine 3-sulfate has a substrate consensus sequence of Glc(N2S>NAc)+/-6S GlcA GlcN2S*+/-6S GlcA>IdoA+/-2S Glc(N2S/NAc)+/-6S.

TAS

MF

GO:0033872

[heparan sulfate]-glucosamine 3-sulfotransferase 3 activity

Catalysis of the reaction: 3'-phosphoadenylyl sulfate + [heparan sulfate]-glucosamine = adenosine 3',5'-bisphosphate + [heparan sulfate]-glucosamine 3-sulfate.

IEA