>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=100.00 E-value=0 Score=550.11 Aligned_cols=306 Identities=27% Similarity=0.427 Sum_probs=278.3 Q ss_pred EEEEECCCCHHHHHHHHHHHHC--CCEEEEEECCCCC-CHHHHC------CCCEEEEECCCHHHHHHHHHHCCCCEEEEC Q ss_conf 7999687882779999999987--9889999268767-521302------386798426899999999875698899957 Q gi|254780328|r 5 NVLVVGGAGYIGAHTCRVLYER--GFLPIVLDNLSSG-HAEFVL------WGPLEQVDICDYTNLRAVFAKYQPASVMHF 75 (333) Q Consensus 5 kIlItG~tGfiGs~l~~~L~~~--g~~v~~~d~~~~~-~~~~~~------~~~~~~~Di~d~~~l~~~~~~~~~d~ViHl 75 (333) T Consensus 1 ~~LVTGGaGFIGsnFvry~~~~~~D~~v~vlDkLTYAgn~e~L~~l~~~pr~~Fv~GDI~D~~lv~~~~~e~~~D~VvhF 80 (340) T TIGR01181 1 RILVTGGAGFIGSNFVRYILNEHPDAEVIVLDKLTYAGNLENLADLEDNPRYRFVKGDIGDRELVDRLLKEHDPDAVVHF 80 (340) T ss_pred CCEEECCCCHHHHHHHHHHHHHCCCCEEEEEECCCCCCCHHHHHHHHCCCCEEEEECCCCHHHHHHHHHHHCCCCEEEEC T ss_conf 92363278525689999999747995799863544557865552332396615674230228899888400176778862 Q ss_pred HHHCCCCCCCCCCEEEEEECCCCCCCCCCCCCC--C--------CCCCCCCCCCCCCCCCCCCC--C-CCCCCCCCCCCC Q ss_conf 144011223431001233012333222112222--2--------22222223333222222222--2-222222222222 Q gi|254780328|r 76 AGLTNISESVKNPSLFYEINIKGSFNLIATAIE--S--------NVRRFIFSSTCATYGIPHNT--I-ITENDPQESITP 142 (333) Q Consensus 76 Aa~~~~~~~~~~p~~~~~~Nv~gt~~ll~~~~~--~--------~~~~~i~~SS~~vYG~~~~~--~-~~E~~~~~p~~~ 142 (333) T Consensus 81 AAESHVDRSI~~P~~F~~TNv~GT~tLLEA~R~~w~aL~e~~~a~~r~l~HiSTDEVYGdl~~~~~~~ftE~tpl~PsSP 160 (340) T TIGR01181 81 AAESHVDRSISGPEAFIETNVVGTYTLLEAVRKYWHALREAKKAGVRKLHHISTDEVYGDLEKGDPASFTETTPLAPSSP 160 (340) T ss_pred CCCCHHHHCCCCCHHHHHCCHHHHHHHHHHHHHHCCCCCCCCCCCCEEEEEEECCEEECCCCCCCCEEEEECCCCCCCCC T ss_conf 22052333014541144403378899999997404456644513102635760301440467896734423278877872 Q ss_pred CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC Q ss_conf 22222233322222222222222222222222222222222233333222222222222222222222222222223221 Q gi|254780328|r 143 YGYTKYVVERELLQHNKVNGLRSVVLRYFNAAGATLDSIIGEWHNPETHVIPLAIKTAMGYQNSFKVFGQDYATRDGTCL 222 (333) Q Consensus 143 Yg~sK~~~E~~~~~~~~~~~~~~~~~R~~~vyGp~~~~~~g~~~~~~~~~~~~~i~~~~~~~~~i~i~g~~~~~~dg~~~ 222 (333) T Consensus 161 YSASKAasD~LVrAy~rTYGLp~~ITrCsNNYGP--------YQfpEK-LIPl~I~nal~G-~plPvYG------dG~~v 224 (340) T TIGR01181 161 YSASKAASDLLVRAYHRTYGLPVLITRCSNNYGP--------YQFPEK-LIPLMITNALAG-KPLPVYG------DGQQV 224 (340) T ss_pred HHHHHHHHHHHHHHHHHHCCCCEEEECCCCCCCC--------CCCCCC-CHHHHHHHHHCC-CCCCCCC------CCCCC T ss_conf 4588988878988888754886057688557787--------567420-136899998738-9983301------78832 Q ss_pred CCCCCCCCCCCCCHHHHHHCCCCCCCCEEEEECCCCEEHHHHHHHHHHHHCC----------CCCEEECCCCCCCCCEEE Q ss_conf 1001111100000001110023587310364179980299999999998378----------987598578988862221 Q gi|254780328|r 223 RDYIHVLDLANAHIMALEYLINQGDSIAINLGTGTGITVKEIISTIQSMYEC----------AFPITYESRRIGDPPSLV 292 (333) Q Consensus 223 Rdfi~v~D~~~a~~~~~~~~~~~~~~~~~Nig~~~~~si~~l~~~i~~~~g~----------~~~i~~~~~~~~~~~~~~ 292 (333) T Consensus 225 RDWlyV~DHcrA~~~VL~~---G~~GE~YNIgg~~Er~NlE~V~~Il~~lgklaP~~p~~~~~~li~~V~DRPGHDrRYA 301 (340) T TIGR01181 225 RDWLYVEDHCRAIELVLEK---GRVGEVYNIGGGNERTNLEVVEIILELLGKLAPDKPVKSDEDLIEHVEDRPGHDRRYA 301 (340) T ss_pred EEEEEHHHHHHHHHHHHHC---CCCCCEEECCCCCCCHHHHHHHHHHHHHHHHCCCCCCCCCHHHHEECCCCCCCCCCCC T ss_conf 0324523478999999826---9521256437876221288999999874320767767888435003676988641104 Q ss_pred ECHHHHHHHHCCCCCCCHHHHHHHHHHHHHHHHHHHC Q ss_conf 2708999981887610799999999999997242200 Q gi|254780328|r 293 ADNKKAKKILGWNPKYKLRDIIESAWNWHLKYPRSLS 329 (333) Q Consensus 293 ~d~~k~~~~LGw~p~~~leegi~~~i~~~~~~~~~~~ 329 (333) T Consensus 302 iD~sKi~~ELGW~P~~tfEeGlr~Tv~WY~~N~~WWr 338 (340) T TIGR01181 302 IDASKIRRELGWAPKYTFEEGLRETVQWYLDNEWWWR 338 (340) T ss_pred CCHHHHHHHCCCCCCCCHHHHHHHHHHHHHHHHHHHC T ss_conf 4736767616898742389999999998741045530

HHsearch alignment for GI: 254780328 and conserved domain: TIGR01181