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1.1.1.335: UDP-N-acetyl-2-amino-2-deoxyglucuronate dehydrogenase

This is an abbreviated version!
For detailed information about UDP-N-acetyl-2-amino-2-deoxyglucuronate dehydrogenase, go to the full flat file.

Word Map on EC 1.1.1.335

Reaction

UDP-N-acetyl-2-amino-2-deoxy-alpha-D-glucuronate
+
NAD+
=
UDP-2-acetamido-2-deoxy-alpha-D-ribo-hex-3-uluronate
+
NADH
+
H+

Synonyms

PGN_0168, WblA, WbpB, WlbA

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.1 With NAD+ or NADP+ as acceptor
                1.1.1.335 UDP-N-acetyl-2-amino-2-deoxyglucuronate dehydrogenase

Crystallization

Crystallization on EC 1.1.1.335 - UDP-N-acetyl-2-amino-2-deoxyglucuronate dehydrogenase

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CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
in presence of NAD(H) and substrate to 2.13 A and 1.5 A resolution. Enzyme displays octameric quaternary structure with the active sites positioned far apart. The octamers can be envisioned as tetramers of dimers. The carboxylate group attached to the C-5' carbon of the hexose in the natural substrate, UDP-N-acetyl-D-glucosaminuronic acid, is held firmly in place in the enzyme WlbA active site by the side chains of Arg165 and Tyr169
crystal structure of the enzyme in a complex with NAD(H), to 1.5 A resolution. The tetrameric enzyme assumes an unusual quaternary structure with the dinucleotides positioned quite closely to one another. Both 2-oxoglutarate and the UDP-linked sugar bind in the enzyme active site with their carbon atoms, C-2 and C-3', respectively, abutting the re face of the cofactor. They are positioned about 3 A from the nicotinamide C-4. The UDP-linked sugar substrate adopts a highly unusual curved conformation when bound in the enzyme's active site cleft
crystal structures of the enzyme in a complex with NAD(H) and 2-oxoglutarate, and the enzyme in a complex with NAD(H) and its substrate UDP-N-acetyl-D-glucosaminuronic acid, to 1.45 A and 2.0 A resolution, respectively. The tetrameric enzyme assumes an unusual quaternary structure with the dinucleotides positioned quite closely to one another. Both 2-oxoglutarate and the UDP-linked sugar bind in the enzyme active site with their carbon atoms, C-2 and C-3', respectively, abutting the re face of the cofactor. They are positioned about 3 A from the nicotinamide C-4. The UDP-linked sugar substrate adopts a highly unusual curved conformation when bound in the enzyme's active site cleft. Residues Lys101 and His185 most likely play key roles in catalysis