MetaCyc Pathway: D-xylose degradation V in Sphingomonas koreensis DSMZ 15582

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D-xylose 1-dehydrogenase:
D-xylopyranose + NAD+→D-xylono-1,5-lactone + NADH + H+ (EC 1.1.1.175)
Ga0059261_1894
D-xylono-1,5-lactone + H2O→D-xylonate + H+ (EC 3.1.1.110)
Ga0059261_1893
Xylonate dehydratase:
D-xylonate→2-dehydro-3-deoxy-D-pentonate + H2O (EC 4.2.1.82)
Ga0059261_2649
2-dehydro-3-deoxy-D-pentonate→2,5-dioxopentanoate + H2O (EC 4.2.1.141)
Ga0059261_1895
2,5-dioxovalerate dehydrogenase:
2,5-dioxopentanoate + NADP+ + H2O→2-oxoglutarate + NADPH + 2 H+ (EC 1.2.1.26)
Ga0059261_1896

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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