MetaCyc Pathway: L-ascorbate degradation I (bacterial, anaerobic) in Escherichia coli BW25113

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L-ascorbate[out] + an [HPr protein]-Nπ-phospho-L-histidine[in]→L-ascorbate 6-phosphate[in] + an [HPr]-L-histidine[in] (EC 2.7.1.194)
b4193 (sgaT)
b4194 (ulaB)
b4195 (ulaC)
L-ascorbate 6-phosphate + H2O→3-dehydro-L-gulonate 6-phosphate
b4192 (yjfR)
3-dehydro-L-gulonate-6-phosphate decarboxylase:
3-dehydro-L-gulonate 6-phosphate + H+→L-xylulose 5-phosphate + CO2 (EC 4.1.1.85)
b3581 (sgbH)
b4196 (ulaD)
L-ribulose-5-phosphate 3-epimerase (in reverse):
L-xylulose 5-phosphate→L-ribulose 5-phosphate (EC 5.1.3.22)
b3582 (sgbU)
b4197 (ulaE)
L-ribulose-5-phosphate 4-epimerase:
L-ribulose 5-phosphate→D-xylulose 5-phosphate (EC 5.1.3.4)
b0061 (araD)
b3583 (sgbE)
b4198 (ulaF)

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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