Title : Reconstruction of de novo pathway for synthesis of UDP-glucuronic acid and UDP-xylose from intrinsic UDP-glucose in Saccharomyces cerevisiae.

Pub. Date : 2006 Jun

PMID : 16817893






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1 Here we report a novel S. cerevisiae strain that coexpresses the Arabidopsis thaliana genes UGD1 and UXS3, which encode a UDP-glucose dehydrogenase (AtUGD1) and a UDP-glucuronic acid decarboxylase (AtUXS3), respectively, which are required for the conversion of UDP-D-glucose to UDP-D-xylose in plants. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
2 Here we report a novel S. cerevisiae strain that coexpresses the Arabidopsis thaliana genes UGD1 and UXS3, which encode a UDP-glucose dehydrogenase (AtUGD1) and a UDP-glucuronic acid decarboxylase (AtUXS3), respectively, which are required for the conversion of UDP-D-glucose to UDP-D-xylose in plants. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
3 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
4 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
5 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
6 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
7 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
8 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
9 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana
10 Enzymatic analysis of the purified hexamer His-AtUGD1 revealed that AtUGD1 activity is strongly inhibited by UDP-D-xylose, suggesting that AtUGD1 maintains intracellular levels of UDP-D-glucose in cooperation with AtUXS3 via the inhibition of AtUGD1 by UDP-D-xylose. Uridine Diphosphate Xylose UDP-glucose dehydrogenase 1 Arabidopsis thaliana