alpha-N-acetylglucosaminyltransferase I, alpha1,4-N-acetylglucosaminyltransferase, botv, brother of tout-velu, Galntl-1, glucuronosylgalactosylproteoglycan 4-alpha-N-acetylglucosaminyltransferase, N-acetylgalactosaminyltransferase-like 1
EC Number
2.4.1.223
CAS Registry Number
179241-74-8
Comments
Enzyme involved in the initiation of heparin and heparan sulfate synthesis, transferring GlcNAc to the (GlcA-Gal-Gal-Xyl-)Ser core. Apparently products of both the human EXTL2 and EXTL3 genes can catalyse this reaction. In Caenorhabditis elegans, the product of the rib-2 gene displays this activity as well as that of EC 2.4.1.224, glucuronosyl-N-acetylglucosaminyl-proteoglycan 4-¦Á-N-acetylglucosaminyltransferase. For explanation of the use of a superscript in the systematic name, see 2-Carb-37.2.