Known Activities	UDP-GlcNAc: heparan α-N-acetylhexosaminyltransferase (EC 2.4.1.224)
Mechanism	Retaining
3D Structure Status	GT-A
Note	The long animal heparan synthases are made of two domains. The N-terminal domain, which adds b-1,4-GlcA residues, belongs to family GT47 while the C-terminal domain, which adds a-1,4-GlcNAc residues, belongs to family GT64. The plant homologs have a single domain.
Statistics	GenBank accession (195); Uniprot accession (72); PDB accession (4); 3D entries (1); cryst (0)