>TIGR01181 dTDP_gluc_dehyt dTDP-glucose 4,6-dehydratase; InterPro: IPR005888 The conversion of dTDP-glucose into dTDP-4-keto-6-deoxyglucose by Escherichia coli dTDP-glucose 4,6-dehydratase) takes place in the active site in three steps: dehydrogenation to dTDP-4-ketoglucose, dehydration to dTDP-4-ketoglucose-5,6-ene, and rereduction of C6 to the methyl group. The 4,6-dehydratase makes use of tightly bound NAD^+ as the coenzyme for transiently oxidizing the substrate, activating it for the dehydration step . This and other 4,6-dehydratases catalyze the first committed step in all 6-deoxysugar biosynthetic pathways described to date. Numerous 6-deoxysugars are used in bacterial lipopolysaccharide production as well as in the biosynthesis of a diverse array of secondary metabolites.; GO: 0008460 dTDP-glucose 46-dehydratase activity, 0009225 nucleotide-sugar metabolic process.

Probab=90.96 E-value=0.67 Score=26.10 Aligned_cols=59 Identities=20% Similarity=0.256 Sum_probs=42.2 Q ss_pred HHHHHHHHHHCCCCCCEEEEEEC----------CCCCCCCCCCEEEECCCCHHHHHHHHHHHCCCCCCEEEECCC Q ss_conf 06899999706878832786411----------213334698178301122079999999731388748975320 Q gi|254780313|r 80 SWSQVAARITGSNANNTRVVAID----------ILDMEPILGVKFFKFDFLDLDSWEFIRQAIGGNPDLVLSDMA 144 (227) Q Consensus 80 gWsQva~~~~~~~~~~~~VigVD----------l~~~~~i~gv~~~~gDi~~~~~~~~i~~~l~~~~DlVlSDma 144 (227) T Consensus 14 nFvry~~~~~~----D~~v~vlDkLTYAgn~e~L~~l~~~pr~~Fv~GDI~D~~lv~~~~~e--~~~D~VvhFAA 82 (340) T TIGR01181 14 NFVRYILNEHP----DAEVIVLDKLTYAGNLENLADLEDNPRYRFVKGDIGDRELVDRLLKE--HDPDAVVHFAA 82 (340) T ss_pred HHHHHHHHHCC----CCEEEEEECCCCCCCHHHHHHHHCCCCEEEEECCCCHHHHHHHHHHH--CCCCEEEECCC T ss_conf 99999997479----95799863544557865552332396615674230228899888400--17677886222

HHsearch alignment for GI: 254780313 and conserved domain: TIGR01181