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Gene ontology
Version 2014-12-22
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Details for (N-acetylneuraminyl)-galactosylglucosylceramide N-acetylgalactosaminyltransferase activity
2.4.1.92
Gene ontology ID
GO:0003947
Definition
Catalysis of the reaction: UDP-N-acetyl-D-galactosamine + (N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide = UDP + N-acetyl-D-galactosaminyl-(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide
Synonyms
1. asialo-GM2 synthase activity
2. beta-1,4N-aetylgalactosaminyltransferase activity
3. GalNAc-T activity
4. ganglioside GM2 synthase activity
5. ganglioside GM3 acetylgalactosaminyltransferase activity
6. GM2 synthase activity
7. GM2/GD2-synthase activity
8. UDP acetylgalactosamine-(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide acetylgalactosaminyltransferase activity
9. UDP-N-acetyl-D-galactosamine:(N-acetylneuraminyl)-D-galactosyl-D-glucosylceramide N-acetyl-D-galactosaminyltransferase activity
10. UDP-N-acetyl-D-galactosamine:1-O-[O-(N-acetyl-alpha-neuraminosyl)-(2->3)-O-beta-D-galactopyranosyl-(1->4)-beta-D-glucopyranosyl]-ceramide 1,4-beta-N-acetyl-D-galactosaminyltransferase activity
11. UDP-N-acetylgalactosamine GM3 N-acetylgalactosaminyltransferase activity
12. uridine diphosphoacetylgalactosamine-acetylneuraminylgalactosylglucosylceramide acetylgalactosaminyltransferase activity
13. uridine diphosphoacetylgalactosamine-ganglioside GM3 acetylgalactosaminyltransferase activity
14. uridine diphosphoacetylgalactosamine-hematoside acetylgalactosaminyltransferase activity
References
1. EC 2.4.1.92
2. MetaCyc 2.4.1.92-RXN
3. Reactome: R-HSA-8856223 "B4GALNT1 dimer transfers GalNAc from UDP-GalNAc to GM3 and GD3 gangliosides"
4. RHEA: 12588
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