2.6.1.98: UDP-2-acetamido-2-deoxy-ribo-hexuluronate aminotransferase
This is an abbreviated version!
For detailed information about UDP-2-acetamido-2-deoxy-ribo-hexuluronate aminotransferase, go to the full flat file.
Reaction
Synonyms
aminotransferase WbpE, PGN_1236, PorR, WbpE, WlbC, WpbE
ECTree
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Substrates Products
Substrates Products on EC 2.6.1.98 - UDP-2-acetamido-2-deoxy-ribo-hexuluronate aminotransferase
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REACTION DIAGRAM
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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WbpE/WlbC product is UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate
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r
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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r
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
-
?
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
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r
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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transaminase WbpE product is UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate
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r
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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WbpE/WlbC product is UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate
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r
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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transaminase WbpE product is UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate. Cofactor pyridoxal 5'-phosphate is converted to pyridoxamine phosphate during the reaction
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-
r
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
WbpE product is UDP-2-acetamido-3-amino-2,3-dideoxy-D-glucuronic acid
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-
r
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
-
?
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
-
?
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
-
?
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
-
?
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
-
?
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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-
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?
UDP-2-acetamido-3-amino-2,3-dideoxy-alpha-D-glucuronate + 2-oxoglutarate
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate + L-glutamate
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?
?
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2-acetamido-3-amino-2,3-dideoxy-D-glucuronic acid WbpE product identification by mass spectrometry, overview
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additional information
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WbpB and WbpE are a dehydrogenase/aminotransferase pair that converts UDP-N-acetyl-D-glucosaminuronate, UDP-GlcNAcA, to UDP-2-acetamido-3-amino-2,3-dideoxy-D-glucuronate, UDP-GlcNAc(3NH2)A, in a coupled reaction via a unique NAD+ recycling pathway, large-scale coupled reaction WpbB/WpbE, overview. WbpA, WbpB, WbpE, WbpD and WbpI can be combined in vitro to generate UDP-ManNAc(3NAc)A in a single reaction vessel. Addition of 0.2 mM NAD+, for WbpB, and 0.1 mM pyridoxal 5'-phosphate, for WbpE, to the reaction mixture aids in achieving complete turnover of substrate, which implies that the heterologously expressed proteins are not saturated with cofactor due to the limiting intracellular levels of both NAD+ and pyridoxal 5'-phosphate in Escherichia coli. WbpB/WbpE substrate specificity, overview
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