MetaCyc Pathway: L-ascorbate biosynthesis III (D-sorbitol pathway) in Burkholderia phytofirmans PsJN

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D-sorbitol dehydrogenase (acceptor):
D-sorbitol + an oxidized electron carrier→keto-L-sorbose + a reduced two electron carrier (EC 1.1.99.21)
BPHYT_RS16120
L-sorbose 1-dehydrogenase:
keto-L-sorbose + an oxidized electron carrier→L-sorbosone + a reduced two electron carrier (EC 1.1.99.32)
BPHYT_RS20800
L-sorbosone→L-sorbosone 1,4-lactone (spontaneous)
No genes
L-sorbosone 1,4-lactone + an oxidized electron carrier→L-ascorbate + a reduced two electron carrier + H+
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