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Table 1 List of E. coli SDR related enzymes and metabolic pathways.

From: Evolution by leaps: gene duplication in bacteria

Gene

Gene Product

Pathway

Phenotype

fabG

3-oxoacyl- [acyl-carrier-protein] reductase

fatty acid biosynthesis

synthesis of essential metabolites

fabI

enoyl- [acyl-carrier-protein] reductase (NADH)

fatty acid biosynthesis

synthesis of essential metabolites

hcaB

2,3-dihydroxy-2,3-dihydrophenylpropionate dehydrogenase

3 phenylpropionate degradation

utilization of aromatic compounds

srlD

glucitol (sorbitol)-6-phosphate dehydrogenase

sorbitol (glucitol) degradation

utilization of a sugar alcohol

idnO

5-keto-D-gluconate 5-reductase

L-idonate degradation

utilization of a sugar

kduD*

2-deoxy-D-gluconate 3-dehydrogenase

pentose and glucuronate interconversions

interconversion of 5- and 6-carbon carbohydrates

hdhA

NAD-dependent 7alpha-hydroxysteroid dehydrogenase

degradation of human bile acids

decomposition of intestinal bile acids

entA

2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase

enterochelin/enterobactin biosynthesis

binds and solubilizes iron in enteric bacteria

rfbD

dTDP-6-deoxy-L-mannose-dehydrogenase

dTDP-L-rhamnose biosynthesis

biosynthesis of enterobacterial common antigen

rfbB

dTDP-glucose 4,6 dehydratase

dTDP-L-rhamnose biosynthesis

biosynthesis of enterobacterial common antigen

rffG

dTDP-glucose 4,6-dehydratase 2

dTDP-L-rhamnose biosynthesis

biosynthesis of entobacterial common antigen

galE

UDP-galactose-4-epimerase

UDP-galactose biosynthesis

metabolism of galactose; biosynthesis of colanic acid

fcl

GDP 4 keto 6 deoxymannose epimerase, dehydrogenase

GDP-L-fucose biosynthesis

biosynthesis of colanic acid

gmd

GDP-D-mannose dehydratase

GDP-L-fucose biosynthesis

biosynthesis of colanic acid

rfaD

ADP-L-glycero-D-mannoheptose-6-epimerase

ADP-L-glycero-D-mannoheptose biosynthesis

biosynthesis of Lipid A

  1. * predicted activity
  2. The grey line separates the dehydrogenases/reductases (top) from the epimerases/dehydratases (bottom).