1.1.1.22: UDP-glucose 6-dehydrogenase

This is an abbreviated version, for detailed information about UDP-glucose 6-dehydrogenase, go to the full flat file.

Reaction

UDP-alpha-D-glucose
+ 2 NAD+ +
H2O
=
UDP-alpha-D-glucuronate
+ 2 NADH + 2 H+

Synonyms

ADH-like UDP-glucose dehydrogenase, AglM, BceC, dehydrogenase, uridine diphosphoglucose, dual specificity UDP-glucose dehydrogenase, HasB, HasB2, HVO_1531, PA2022, PA3559, sqv-4, Sugarless protein, UDP-alpha-D-glucose:NAD oxidoreductase, UDP-D-glucose dehydrogenase, UDP-GDH, UDP-Glc dehydrogenase, UDP-Glc DH, UDP-GlcDH, UDP-GlcDHase, UDP-glucose dehydrogenase, UDPDH, UDPG dehydrogenase, UDPG-DH, UDPG:NAD oxidoreductase, UDPGD, UDPGDH, UDPGDH-A, UDPGDH-B, UDPGlc dehydrogenase, UDPglucose dehydrogenase, UDPglucose:NAD+ oxidoreductase, Ugd, UGD1, UgdG, UGDH, uridine diphosphate D-glucose dehydrogenase, uridine diphosphate glucose dehydrogenase, uridine diphosphate glucose-6-dehydrogenase, uridine diphosphate-glucose dehydrogenase, uridine diphosphoglucose dehydrogenase, uridine-5'-diphosphoglucose dehydrogenase, uridyl phosphate dehydrogenase

ECTree

     1 Oxidoreductases
         1.1 Acting on the CH-OH group of donors
             1.1.1 With NAD+ or NADP+ as acceptor
                1.1.1.22 UDP-glucose 6-dehydrogenase

Inhibitors

Inhibitors on EC 1.1.1.22 - UDP-glucose 6-dehydrogenase

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INHIBITORS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
Ca2+
84% residual activity at 1 mM
EDTA
83% residual activity at 1 mM
gallic acid
-
is a non-competitive inhibitor with respect to UDP-glucose and NAD+. It decreases specific activities of UGDH, but does not affect UGDH protein expression, thus UGDH activity is inhibited by polyphenols at the post-translational level. Gallic acid exerts strong antiproliferative activity in breast cancer cells. Heat inactivation of UGDH is accelerated to a greater degree by quercetin than by gallic acid. In the presence of gallic acid, the activity remaining after 30 min is 55% that of control
Mn2+
84% residual activity at 1 mM
NH2OH
-
deactivation
p-chloromercuribenzoate
piperine
quercetin
-
shows a competitive inhibition and a mixed-type inhibition with respect to UDP-glucose and NAD+, decreases specific activities of UGDH, but does not affect UGDH protein expression, thus UGDH activity is inhibited by polyphenols at the post-translational level. Quercetin exerts strong antiproliferative activity in breast cancer cells. Heat inactivation of UGDH is accelerated to a greater degree by quercetin than by gallic acid. In the presence of quercetin, the activity remaining after 30 min is 20% that of control
thiol group modifying reagents
-
-
-
UDP
-
0.5 mM, partial inhibition
UDP-alpha-D-glucuronate
-
0.05 mM, partial inhibition
UDP-alpha-D-xylose
-
competitive. The DELTA132 deletion mutant and the UDP-alpha-D-xylose-inhibited structures have similar hexamer-building interfaces, suggesting that the hinge-bending motion represents a path for the allosteric transition between the different hexameric states
UDP-D-galactose
-
slight
UDP-D-xylose
UDP-galactose
-
0.5 mM, partial inhibition
UDP-glucuronate
Saccharum spp.
-
competitive
UDP-glucuronic acid
product inhibition, 44% residual activity at 1 mM; product inhibition, 79% residual activity at 1 mM
UDP-xylose
UDParabinose
-
-
UDPgalacturonic acid
-
-
UDPglucuronate
UDPxylose
Uridine 5'-diphosphate chloroacetol
-
alkylates a thiol group of cysteine in the catalytic centre via being specifically bound instead of the substrate
additional information
-