MetaCyc Pathway: ureide biosynthesis in Escherichia coli BW25113

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Reactions and Genes 2,4-Dinitrophenol 2 mM
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IMP dehydrogenase:
IMP + NAD+ + H2O→XMP + NADH + H+
(EC 1.1.1.205)
b2508 (guaB) N.D.
5'-nucleotidase:
XMP + H2O→xanthosine + phosphate
(EC 3.1.3.5)
b0480 (ushA) -0.1
b2291 (yfbR) -0.0
b2744 (surE) +0.2
b4055 (aphA) +0.2
b4374 (yjjG) +0.2
Purine-nucleoside phosphorylase:
xanthosine + phosphate→xanthine + α-D-ribose-1-phosphate
(EC 2.4.2.1)
b0391 (yaiE) -0.0
b2407 (xapA) +0.2
b4384 (deoD) -1.4
Xanthine dehydrogenase:
xanthine + NAD+ + H2O→urate + NADH + H+
(EC 1.17.1.4)
b0284 (yagR) -0.1
b0285 (yagS) -0.2
b2866 (xdhA) -0.0
b2867 (xdhB) +0.2
b2868 (xdhC) +0.1
Urate oxidase:
urate + dioxygen + H2O→(S)-5-hydroxyisourate + hydrogen peroxide
(EC 1.7.3.3)
No genes
Hydroxyisourate hydrolase:
(S)-5-hydroxyisourate + H2O→(S)-2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline + H+
(EC 3.5.2.17)
b1970 (yedX) -0.1
(S)-2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline + H+→(S)-(+)-allantoin + CO2 (EC 4.1.1.97)
No genes

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Candidate genes for each reaction are identified from best hits to MetaCyc; by matching EC numbers (which are assigned by TIGRFam, SEED, or best hits to KEGG); or by matching SEED roles to KEGG reactions to MetaCyc reactions. See the "Protein" tab of each gene for more information