Alpha-1,6-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase
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EC no.2.4.1.143
CAS no.105913-04-0
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Alpha-1,6-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase (EC 2.4.1.143, N-acetylglucosaminyltransferase II, N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase II, acetylglucosaminyltransferase II, uridine diphosphoacetylglucosamine-mannoside alpha1->6-acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-alpha-1,6-mannosylglycoprotein beta-1-2-N-acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-alpha-D-mannoside beta1-2-acetylglucosaminyltransferase, UDP-GlcNAc:mannoside alpha1-6 acetylglucosaminyltransferase, alpha-1,6-mannosyl-glycoprotein beta-1,2-N-acetylglucosaminyltransferase, GnTII) is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:6-(alpha-D-mannosyl)-beta-D-mannosyl-glycoprotein 2-beta-N-acetyl-D-glucosaminyltransferase.[1][2][3][4][5] This enzyme catalyses the following chemical reaction

UDP-N-acetyl-D-glucosamine + 6-(alpha-D-mannosyl)-beta-D-mannosyl-R UDP + 6-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R

R represents the remainder of the N-linked oligosaccharide in the glycoprotein acceptor.

References

  1. ^ Bendiak B, Schachter H (April 1987). "Control of glycoprotein synthesis. Purification of UDP-N-acetylglucosamine:alpha-D-mannoside beta 1-2 N-acetylglucosaminyltransferase II from rat liver". The Journal of Biological Chemistry. 262 (12): 5775–83. PMID 2952644.
  2. ^ Harpaz N, Schachter H (May 1980). "Control of glycoprotein synthesis. Bovine colostrum UDP-N-acetylglucosamine:alpha-D-mannoside beta 2-N-acetylglucosaminyltransferase I. Separation from UDP-N-acetylglucosamine:alpha-D-mannoside beta 2-N-acetylglucosaminyltransferase II, partial purification, and substrate specificity". The Journal of Biological Chemistry. 255 (10): 4885–93. PMID 6445358.
  3. ^ Mendicino J, Chandrasekaran EV, Anumula KR, Davila M (February 1981). "Isolation and properties of alpha-D-mannose:beta-1,2-N-acetylglucosaminyltransferase from trachea mucosa". Biochemistry. 20 (4): 967–76. doi:10.1021/bi00507a050. PMID 6452163.
  4. ^ Oppenheimer CL, Eckhardt AE, Hill RL (November 1981). "The nonidentity of porcine N-acetylglucosaminyltransferases I and II". The Journal of Biological Chemistry. 256 (22): 11477–82. PMID 6457827.
  5. ^ Schachter H, Narasimhan S, Gleeson P, Vella G (1983). Glycosyltransferases involved in elongation of N-glycosidically linked oligosaccharides of the complex or N-acetyllactosamine type. Methods in Enzymology. Vol. 98. pp. 98–134. doi:10.1016/0076-6879(83)98143-0. PMID 6366476.

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Transferases: glycosyltransferases (EC 2.4)
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