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© IUBMB 2002
Polysaccharide representation based on Nomenclature of Carbohydrates 2carb-38.5.
heparan biosynthesis (early stages)
EC 18.104.22.168 glucuronyl-galactosyl-proteoglycan 4-α-N-acetylglucosaminyltransferase
EC 22.214.171.124 glucuronosyl-N-acetylglucosaminyl-proteoglycan 4-α-N-acetylglucosaminyltransferase
EC 126.96.36.199 N-acetylglucosaminyl-proteoglycan 4-β-glucuronosyltransferase