2.4.1.90	4-methylumbelliferyl-beta-D-GlcNAc + UDP-galactose	Hp1–4GalT specifically recognizes GlcNAc-terminated glycans as acceptors	Helicobacter pylori	?	-	?	420063	
2.4.1.90	additional information	regioselectivity towards specific C(4)glucose OH group in the complex protopanaxadiol glycoside ginsenoside Rb1	Bos taurus	?	-	?	89	
2.4.1.90	additional information	enzyme also catalyzes unusual galactosyl transfer to the 3-OH position of L-sugars	Bos taurus	?	-	?	89	
2.4.1.90	additional information	enzyme also catalyzes transfer of glucose from UDPglucose to N-acetylglucosamine	Bos taurus	?	-	?	89	
2.4.1.90	additional information	the enzyme utilizes different glycoproteins and glycolipids as substrates, patients with rheumatoid arthritis have a higher content of an acidic isoform compared to healthy individuals, the isoform is not associated with inflammation per se but specifically with rheumatoid arthritis	Homo sapiens	?	-	?	89	
2.4.1.90	additional information	analysis of cell surface sugar chains in the cancer cell lines, overview	Homo sapiens	?	-	?	89	
2.4.1.90	additional information	enzyme interacts with alpha-lactalbumin to form the lactose synthase enzyme complex, structural basis for catalytic mechanism, overview	Bos taurus	?	-	?	89	
2.4.1.90	additional information	no activity with penta- and heptasaccharides generated from rhamnogalacturonan I, product determination by mass spectrometry, NMR, and enzymatic digestion analysis	Vigna radiata	?	-	?	89	
2.4.1.90	additional information	UDP-glucose and UDP-N-acetylgalactosamine are poor substrates, the latter due to Tyr286 which is a sterical hindrance and traps hydrolyzed GalNAc in the oxocarbenium-ion-like state, enzyme interacts with alpha-lactalbumin to form the lactose synthase enzyme complex	Homo sapiens	?	-	?	89	
2.4.1.90	additional information	the enzyme is involved in regulation of carbohydrate composition of milk during lactation, endocrine enzyme regulation, overview	Notamacropus eugenii	?	-	?	89