>TIGR01173 glmU UDP-N-acetylglucosamine pyrophosphorylase; InterPro: IPR005882 N-Acetylglucosamine-1-PO(4) uridyltransferase (GlmU, 2.7.7.23 from EC) is a trimeric bifunctional enzyme that catalyzes the last two sequential reactions in the de novo biosynthetic pathway for UDP-GlcNAc. The X-ray crystal structure of Escherichia coli GlmU in complex with UDP-GlcNAc and CoA has been determined to 2.1 A resolution and reveals a two-domain architecture that is responsible for these two reactions . The C-terminal domain is responsible for the CoA-dependent acetylation of Glc-1-PO(4) to GlcNAc-1-PO(4) and displays the longest left-handed parallel beta-helix observed to date. The acetyltransferase active site defined by the binding site for CoA makes use of residues from all three subunits and is positioned beneath an open cavity large enough to accommodate the Glc-1-PO(4) acetyl acceptor. The N-terminal domain catalyzes uridyl transfer from UTP to GlcNAc-1-PO(4) to form the final products UDP-GlcNAc and pyrophosphate. This domain is composed of a central seven-stranded beta-sheet surrounded by six alpha-helices in a Rossmann fold-like topology. ; GO: 0003977 UDP-N-acetylglucosamine diphosphorylase activity, 0009103 lipopolysaccharide biosynthetic process.

Probab=100.00 E-value=0 Score=934.06 Aligned_cols=436 Identities=41% Similarity=0.686 Sum_probs=413.7 Q ss_pred CEEEEECCCCCCCCCCCCCCCEEEECCEEHHHHHHHHHHHCCCCEEEEEECCCHHHHHHHHCCCC-CEEEEEECCCCCC- Q ss_conf 08999458877232788874412588485799999999977997799995798899999730269-7289998599886- Q gi|254780942|r 5 RLAIVLAAGRGHRMKSSSSKVLQKIAGKPMISHVMETIAAAGIENVALVLGYGAEEITRINFPPT-LSVEYYIQDCQQG- 82 (442) Q Consensus 5 ~~AiILAaG~GtRl~p~~pKpLlpi~gkpli~~~i~~l~~~g~~~ivvv~~~~~e~i~~~~~~~~-~~i~~v~q~~~~G- 82 (442) T Consensus 1 ~~~vILAAGkGTRMkS~lPKVLH~laGkpMl~hVi~~A~~L~~~~i~vV~GH~~~~V~~~l~~~~d~t~~~v~Q~~qlGG 80 (461) T TIGR01173 1 LSVVILAAGKGTRMKSKLPKVLHPLAGKPMLEHVIDAARKLSPEKIHVVLGHGAEQVRKALAEENDKTVNWVLQAEQLGG 80 (461) T ss_pred CEEEEEECCCCCCCCCCCCCCCCHHHCCCHHHHHHHHHHCCCCCCEEEEECCCHHHHHHHHHCCCCCEEEEEEECCCCCC T ss_conf 93899806888311138686012010322789999998537834159998168699999850379967999996889787 Q ss_pred HHHHHHHCCCCCC-CCCCEEEEEECCCCCCCCCCCC-CCCCCCC--CCCCCCCEEEECCCCCCCCEEEECC-CCCEECCC Q ss_conf 1446641000012-3446058985154111533220-0000013--5861001001012215744042023-33100100 Q gi|254780942|r 83 TAHAVLTAQDAIK-PGYDDVIIMYGDVPLVSSHTLK-KAMDKIA--QGYSIAVVGFNADNPKGYGRLLIKN-NEIIAIRE 157 (442) Q Consensus 83 Ta~Ai~~a~~~l~-~~~~~~lVl~GD~~li~~~~l~-~l~~~~~--~~~~~~i~~~~~~dp~~yGvV~~d~-~~v~~i~E 157 (442) T Consensus 81 TGHAv~~a~~~l~~~~~~~vLvLyGDvPLi~~eTL~m~Ll~~~~~~~~~~~tlLt~~l~DP~GYGRI~r~~~g~V~~IVE 160 (461) T TIGR01173 81 TGHAVLQALPFLSEDDDGRVLVLYGDVPLISAETLEMRLLESHRQLNGAKVTLLTAKLEDPTGYGRIIRENDGAVQAIVE 160 (461) T ss_pred HHHHHHHHCCCCCCCCCCEEEEEECCCCCCCHHHHHHHHHHHHHCCCCCCEEEEEEEECCCCCCCEEEECCCCCEEEEEC T ss_conf 28999871167888668608999588787756778779888630001045179998718889543589848995899973 Q ss_pred CCCCCCCCCCCCCCCCCHHEECCHHHHHHHHHCCCCCCCCHHHHHHHHHHHHHHHCCEEEEEECH-HHEECCCCCCCCCC Q ss_conf 14667542100035560011125014677753288874001112114899997307717999172-14301112100000 Q gi|254780942|r 158 ENDATDEERKIHYCNSGLMAIDGLYIMDWLLQIKKNKVSQEYYLTDIIEKARLDGKSIASIDVKE-QEVCGCNNRYELSL 236 (442) Q Consensus 158 k~d~~~~~~~~~lin~GiY~f~~~~L~~~l~~l~~~~~~gE~yltDii~~l~~~g~~i~~~~~~~-~~~~gv~~~~~L~~ 236 (442) T Consensus 161 ~KDA~~eqk~I~eiNtG~y~~~~~~L~~~L~~l~n~NaqgEYYLTD~ia~a~~~g~~v~~~~~~d~~E~~GvNdR~qLa~ 240 (461) T TIGR01173 161 EKDANEEQKAIKEINTGVYVFDGAALKRWLPKLSNNNAQGEYYLTDVIALAVADGEEVRAVQVDDSEEVLGVNDRLQLAQ 240 (461) T ss_pred CCCCCHHHHCCCEEEEEEEEECHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHCCCCEEEEEEECCHHHHCCCCCHHHHHH T ss_conf 35988698035278887999832899988876287704443147899999850894789998087598336679889999 Q ss_pred CCCCCCCCCCCCCCCCCCCEEECCCEEEEEEEEECCCCCEECCCCCCCCCCCCEEEECCCCCCC---------------- Q ss_conf 0122222112212223321021152799411233178410012232234420002111631343---------------- Q gi|254780942|r 237 IENIWQSRYRRQMMISGVTMIAPETVFLSHDTIIQPDTVIEPHVFFGCGVSIENYVQIRAFSYL---------------- 300 (442) Q Consensus 237 ~~~~~~~~~~~~~l~~gv~~~~p~~~~i~~~~~I~~~~~I~~~~~Ig~~~~Ig~~~~I~~~~~i---------------- 300 (442) T Consensus 241 lE~~~q~r~~~~l~~~GVt~~dP~~~~i~~~v~~G~Dv~I~~~v~leG~v~iG~~v~IGp~~~I~ns~I~~~~~I~~~s~ 320 (461) T TIGR01173 241 LERILQRRIAKKLLLQGVTLIDPARTDIRGTVEIGQDVVIDPNVILEGKVQIGDDVVIGPGCVIKNSVIGSNAVIKPYSV 320 (461) T ss_pred HHHHHHHHHHHHHHHCCCEEECCCEEEECCCEEECCEEEECCCCEECCEEEECCCEEECCCCEEEEEEECCCCEEEEEEE T ss_conf 99999999999898589299868337873547987716975583883407987870788985899728868855888884 Q ss_pred -CCCCCCCCCCCCCCCCCCCCEEECCCCCCCCEEEEECCCCCCCCCCCCCCCCCCCEECCCCEECCCEEECCCCCCCCCC Q ss_conf -3212111210021344320000025864432023102112478544874555663988998997980883445775456 Q gi|254780942|r 301 -EGVHIGKKTIIGPFARIRQETTIEKNVRIGNFCEVKKATIKEGSKINHLSYVGDSVVGKNVNIGAGTITCNYDGTHKYK 379 (442) Q Consensus 301 -~~~~Ig~~~~Ig~~~~i~~~s~i~~~~~Ig~~~ei~~s~i~~g~~i~~~~~igd~~iG~~~~ig~g~i~~n~~g~~~~~ 379 (442) T Consensus 321 ~e~~~ig~~~~vGPFArLRP~~~L~~~~hiGNFVE~Kna~iG~gsKA~HLsYlGDAeiG~~vNiGAGtITcNYDG~nK~~ 400 (461) T TIGR01173 321 LEGSEIGEGCDVGPFARLRPGSVLGAGVHIGNFVEVKNARIGEGSKAGHLSYLGDAEIGSNVNIGAGTITCNYDGVNKHK 400 (461) T ss_pred CCCCEECCCCEECCCCCCCCCCHHHCCCEEEEEEEEECCEECCCCCCCCCCEEEEEEECCCCEECCEEEEEECCCCCCCC T ss_conf 14678615640277300186432117781602586524761886442314333202507960032316899327962203 Q ss_pred CEECCCCEECCCCEEECCEEECCCCEECCCCEECCCCCCCCEEEECCCEEEECCCCCCCCC Q ss_conf 2987887988699893783988998997783576643698689813560770774221001 Q gi|254780942|r 380 THINENAFIGSNSSLIAPITIGQGTYVASGSIITQDTPENSLVFARSRQIVKEDGALSMRK 440 (442) Q Consensus 380 ~~ig~~~~iG~~~~i~~gv~ig~~~~i~ag~~v~~dv~~~~~v~~~~~~~~~~~~~~~~~~ 440 (442) T Consensus 401 T~IGd~VFiGSnt~LVAPV~iG~gA~iaAGstvt~DVp~g~La~~R~~Q~~iegW~~~~~~ 461 (461) T TIGR01173 401 TIIGDGVFIGSNTQLVAPVKIGDGATIAAGSTVTKDVPEGALAIARARQRNIEGWVRPKKK 461 (461) T ss_pred CEECCCCEECCCCEEECCEEECCCCEECCCCEEECCCCCCCCEEECCCCEECCCCCCCCCC T ss_conf 4864887877676045543943811871241480234888526624556552276326789

HHsearch alignment for GI: 254780942 and conserved domain: TIGR01173