2.4.1.141: N-acetylglucosaminyldiphosphodolichol N-acetylglucosaminyltransferase
This is an abbreviated version!
For detailed information about N-acetylglucosaminyldiphosphodolichol N-acetylglucosaminyltransferase, go to the full flat file.
Reaction
Synonyms
Alg 14, Alg13, Alg13p, Alg13p/Alg14p, Alg14, chitobiosyl-PP-lipid synthase, CLS, N,N'-diacetylchitobiosylpyrophosphoryldolichol synthase, UDP-GlcNAc transferase, UDP-GlcNAc:dolichyl-pyrophosphoryl-GlcNAc GlcNAc transferase, UDP-GlcNAc:GlcNAc-P-P-Dol N-acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-dolichylacetylglucosamine pyrophosphate acetylglucosaminyltransferase
ECTree
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Substrates Products
Substrates Products on EC 2.4.1.141 - N-acetylglucosaminyldiphosphodolichol N-acetylglucosaminyltransferase
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REACTION DIAGRAM
N-acetyl-D-glucosaminyl-diphosphodolichol + UDP-glucuronic acid
D-glucuronyl-1,4-N-acetyl-D-glucosaminyl-diphosphodolichol + UDP
UDP-N-acetyl-alpha-D-glucosamine + N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
UDP + N,N'-diacetylchitobiosyl-diphosphodolichol
UDP-N-acetyl-alpha-D-glucosamine + N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
UDP + N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
D-glucuronyl-1,4-N-acetyl-D-glucosaminyl-diphosphodolichol + UDP
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N-acetyl-D-glucosaminyl-diphosphodolichol + UDP-glucuronic acid
D-glucuronyl-1,4-N-acetyl-D-glucosaminyl-diphosphodolichol + UDP
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N-acetyl-D-glucosaminyl-diphosphodolichol + UDP-glucuronic acid
D-glucuronyl-1,4-N-acetyl-D-glucosaminyl-diphosphodolichol + UDP
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UDP + N,N'-diacetylchitobiosyl-diphosphodolichol
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UDP-N-acetyl-alpha-D-glucosamine + N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
UDP + N,N'-diacetylchitobiosyl-diphosphodolichol
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UDP + N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
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UDP-N-acetyl-alpha-D-glucosamine + N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
UDP + N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
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UDP-N-acetyl-alpha-D-glucosamine + N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
UDP + N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
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UDP-N-acetyl-alpha-D-glucosamine + N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
UDP + N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
second step in the biosynthesis of the unique lipid-linked core oligosaccharide
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UDP-N-acetyl-alpha-D-glucosamine + N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
UDP + N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-alpha-D-glucosaminyl-diphosphodolichol
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5-fluoro N-acetylglucosamine is completely inactive as a glycosyl donor
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additional information
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a short C-terminal alpha helix of Alg13 is required for interaction with Alg14 and for enzyme activity. The C-terminal three amino acids of Alg14 are required for maintaining the integrity of Alg13/Alg14 complex. They are involved in the stabilization of the interaction between the C-termini of Alg13 and Alg14. Deletion of the N-terminal alpha strand of Alg13 causes the destruction of protein, indicating the structural importance of this region in protein stability
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additional information
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a short C-terminal alpha helix of Alg13 is required for interaction with Alg14 and for enzyme activity. The C-terminal three amino acids of Alg14 are required for maintaining the integrity of Alg13/Alg14 complex. They are involved in the stabilization of the interaction between the C-termini of Alg13 and Alg14. Deletion of the N-terminal alpha strand of Alg13 causes the destruction of protein, indicating the structural importance of this region in protein stability
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