EXTL2 Protein, Mouse, Recombinant (His)α-GalNAcT EXTL2, α-1, Glucuronyl-galactosyl-proteoglycan 4-α-N-acetylglucosaminyltransferase, Glucuronyl-galactosyl-proteoglycan 4-alpha-N-acetylglucosaminyltransferase, EXT-related protein 2, Extl2, Exostosin-like 2, Alpha-GalNAcT EXTL2, Alpha-1, 4-N-acetylhexosaminyltransferase EXTL2