2.4.1.290: N,N'-diacetylbacillosaminyl-diphospho-undecaprenol alpha-1,3-N-acetylgalactosaminyltransferase
This is an abbreviated version!
For detailed information about N,N'-diacetylbacillosaminyl-diphospho-undecaprenol alpha-1,3-N-acetylgalactosaminyltransferase, go to the full flat file.
Reaction
Synonyms
Cj1125c, PglA
ECTree
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Natural Substrates Products
Natural Substrates Products on EC 2.4.1.290 - N,N'-diacetylbacillosaminyl-diphospho-undecaprenol alpha-1,3-N-acetylgalactosaminyltransferase
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REACTION DIAGRAM
UDP-N-acetyl-alpha-D-galactosamine + N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
UDP + N-acetyl-D-galactosaminyl-alpha-(1->3)-N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
UDP-N-acetyl-alpha-D-galactosamine + N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
UDP + N-acetyl-D-galactosaminyl-alpha-(1->3)-N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
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UDP-N-acetyl-alpha-D-galactosamine + N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
UDP + N-acetyl-D-galactosaminyl-alpha-(1->3)-N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
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one N-acetylgalactosamine is linked to the polyisoprenepyrophosphate-bound N,N'-diacetylbacillosamine by Cj1125c (PglA) to form GalNAc-alpha1,3-Bac2,4diNAc-alpha1-PP-Und
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UDP-N-acetyl-alpha-D-galactosamine + N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
UDP + N-acetyl-D-galactosaminyl-alpha-(1->3)-N,N'-diacetyl-alpha-D-bacillosaminyl-diphospho-tritrans,heptacis-undecaprenol
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starting from UDP-GalNAc, UDP-Glc, Und-P and chemically synthesized UDP-Bac-2,4-NAc, the reactions of recombinant PglC, PglA, PglH, PglJ and PglI are coupled in a single reaction vessel to synthesize the bacterial glycan heptasaccharide, overview. Presence of GST-PglF, PglE and PglD in the same reaction vessel does not inhibit the downstream reactions. In N-linked glycoproteins the heptasaccharide is covalently attached at the N,N'-diacetylbacillosamine through a beta-linkage to the amide nitrogen of an asparagine side chain in the canonical sequence Asn-Xaa-Ser/Thr motif, where Xaa can be any amino acid except proline
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additional information
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starting from UDP-GalNAc, UDP-Glc, Und-P and chemically synthesized UDP-Bac-2,4-NAc, the reactions of recombinant PglC, PglA, PglH, PglJ and PglI are coupled in a single reaction vessel to synthesize the bacterial glycan heptasaccharide, overview. Presence of GST-PglF, PglE and PglD in the same reaction vessel does not inhibit the downstream reactions. In N-linked glycoproteins the heptasaccharide is covalently attached at the N,N'-diacetylbacillosamine through a beta-linkage to the amide nitrogen of an asparagine side chain in the canonical sequence Asn-Xaa-Ser/Thr motif, where Xaa can be any amino acid except proline
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