Galactosyl-N-acetylglucosaminylgalactosylglucosyl-ceramide b-1,6-N-acetylglucosaminyltransferase

Galactosyl-N-acetylglucosaminylgalactosylglucosyl-ceramide beta-1,6-N-acetylglucosaminyltransferase
Identifiers
EC no.2.4.1.164
CAS no.85638-40-0
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Galactosyl-N-acetylglucosaminylgalactosylglucosyl-ceramide beta-1,6-N-acetylglucosaminyltransferase (EC 2.4.1.164, uridine diphosphoacetylglucosamine-acetyllactosaminide beta1->6-acetylglucosaminyltransferase, UDP-N-acetyl-D-glucosamine:D-galactosyl-1,4-N-acetyl-beta-D-glucosaminyl-1,3-beta-D-galactosyl-1,4-beta-D-glucosylceramide beta-1,6-N-acetylglucosaminyltransferase) is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide 6-beta-N-acetylglucosaminyltransferase.[1] This enzyme catalyses the following chemical reaction

UDP-N-acetyl-D-glucosamine + D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide UDP + N-acetyl-D-glucosaminyl-(1->6)-beta-D-galactosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-glucosyl-(1<->1)-ceramide

This enzyme requires Mn2+.

References

  1. ^ Basu M, Basu S (October 1984). "Biosynthesis in vitro of Ii core glycosphingolipids from neolactotetraosylceramide by beta 1-3- and beta 1-6-N-acetylglucosaminyltransferases from mouse T-lymphoma". The Journal of Biological Chemistry. 259 (20): 12557–62. PMID 6238026.