>TIGR00118 acolac_lg acetolactate synthase, large subunit, biosynthetic type; InterPro: IPR012846 Two groups of proteins form acetolactate from two molecules of pyruvate. The type of acetolactate synthase described in this entry also catalyzes the formation of acetohydroxybutyrate from pyruvate and 2-oxobutyrate, an early step in the branched chain amino acid biosynthesis; it is therefore also termed acetohydroxyacid synthase. In bacteria, this catalytic chain is associated with a smaller regulatory chain in an alpha2/beta2 heterotetramer. Acetolactate synthase is a thiamine pyrophosphate enzyme. In this type, FAD and Mg++ are also found. Several isozymes of this enzyme are found in E. coli K12, one of which contains a frameshift in the large subunit gene and is not expressed.; GO: 0000287 magnesium ion binding, 0003984 acetolactate synthase activity, 0030976 thiamin pyrophosphate binding, 0050660 FAD binding, 0009082 branched chain family amino acid biosynthetic process.

Probab=98.26 E-value=2e-06 Score=65.54 Aligned_cols=394 Identities=20% Similarity=0.262 Sum_probs=183.8 Q ss_pred CCCCCCCCHHHHHHHHHHHHEEECCCCCCCCCCCEEEEECCCCHHHHHHHHHHCCCCCCCHHHHHHHHCCCCCCCCCCCC Q ss_conf 97643136899999984332544577898878877998565201899999997076889988986400038879889888 Q gi|254780655|r 40 GHPGLPMGMADVVTALFTQCMVFDPQCPYWPNRDRFVLSAGHGSMLYYALLYLLGYQDVTIEDIKNFRTIGSKTAGHPEY 119 (673) Q Consensus 40 GH~g~~l~~~el~~~L~~~~~~~~~~~p~~~~rDr~v~s~GH~s~~~Y~~~~l~G~~~~~~e~l~~~r~~~s~~~Ghpe~ 119 (673) T Consensus 21 GYPGGA~--LpiYD~Ly~----fe~~s-----~~~HIL~RHEQg---A~H-aADGYA-----------R----AsG---- 66 (593) T TIGR00118 21 GYPGGAI--LPIYDALYR----FETDS-----GIEHILVRHEQG---AVH-AADGYA-----------R----ASG---- 66 (593) T ss_pred CCCCCCH--HHHHHHHHC----CCCCC-----CCEEECCCHHHH---HHH-HHCCCE-----------E----CCC---- T ss_conf 4898643--567766503----01268-----832721672557---645-423440-----------0----158---- Q ss_pred CCCCCCCCCCCCCHHHHHHH-HHHHHHHHHHHHHCCCCCCCCEEE-EEECCCCCCCHHH--------------------- Q ss_conf 89987306888631479999-999999998534268876784599-9843621143445--------------------- Q gi|254780655|r 120 GSCAGIEATTGPLGQGIANA-VGMAIAERKLREEFGDVLIDHYTY-VLVGDGCLMEGIS--------------------- 176 (673) Q Consensus 120 ~~~~~v~~~tG~lG~gis~a-~G~A~a~k~~~~~~~~~~~d~~v~-~iiGDG~l~eG~~--------------------- 176 (673) T Consensus 67 -k-vGVv~~T--SGPGATN~VTGiAtA--y~DS~-P~Vv~tGQV~t~~IG~DAFQE~D~~GIt~PitKHsf~V~~~edlp 139 (593) T TIGR00118 67 -K-VGVVLAT--SGPGATNLVTGIATA--YMDSV-PLVVFTGQVPTSLIGSDAFQEADILGITMPITKHSFQVKSAEDLP 139 (593) T ss_pred -C-EEEEEEE--CCCCCHHHHHHHHHH--HHCCC-CEEEECCCHHHHHCCCCCCHHHHHCCCCCCEEEEEECCCCHHHHH T ss_conf -3-0289860--798723356567775--42576-537751760001013750000011134666567530025878999 Q ss_pred ---HHHHHHHHHHCCCCEEEEEEC--------CCCCCCCCCCCCCCCCHHHHHHHCCCCCCCCCCCCHH------HHHHH Q ss_conf ---578876522022330699962--------7632232235567821799886414444444444067------88888 Q gi|254780655|r 177 ---QEAISFAGHLGLSKLIVLWDN--------NGISIDGPISLADSTDQYARFRASGWNTLSVNGHDHH------AITST 239 (673) Q Consensus 177 ---~EAl~~A~~~~l~nli~i~d~--------N~~si~~~~~~~~~~~~~~~~~a~Gw~~~~vdG~d~~------~i~~a 239 (673) T Consensus 140 ~~~~~AF~IA~TGRPGPVlv--DlPKDv~~~~~~~~~~~P~~v~--------LPgY~---P~~~Gh~~Qdefv~qsI~kA 206 (593) T TIGR00118 140 RIIKEAFHIATTGRPGPVLV--DLPKDVTTAEIEFPYDDPEKVN--------LPGYK---PTVEGHPLQDEFVMQSIKKA 206 (593) T ss_pred HHHHHHHHHHCCCCCCCEEE--ECCCCCCCHHHCCCCCCCCEEE--------CCCCC---CCCCCCCCHHHHHHHHHHHH T ss_conf 99998776432766688278--5884224333326788886000--------78878---88898831457899999999 Q ss_pred HHHHHHCCCCH-------------------------HHHHCCCCCCCCCCCCCCCC------CCCC-----CCCHHHH-- Q ss_conf 88751102210-------------------------22201334555700047711------0334-----3722332-- Q gi|254780655|r 240 LRKAQLSDKPT-------------------------MIACETVIGFGSPNRAGTNK------VHGS-----ALGQEEI-- 281 (673) Q Consensus 240 ~~~ak~~~kP~-------------------------~I~~~T~kG~G~~~~e~~~~------~HG~-----~l~~ee~-- 281 (673) T Consensus 207 ~~li~~AkkPVilvGGGvin~a~as~~L~elae~~~~PV~tTLmGlG~-FP~~Hp~~LGMlGMHGt~~AN~Av~EcDllI 285 (593) T TIGR00118 207 AELIEKAKKPVILVGGGVINIAGASEELKELAERLQIPVTTTLMGLGS-FPEDHPLSLGMLGMHGTKTANLAVHECDLLI 285 (593) T ss_pred HHHHHHHCCCEEEECCHHHHCCCCHHHHHHHHHHCCCCCEECCCCCCC-CCCCCHHHHCCCCCHHHHHHHHHHHHCCEEE T ss_conf 999997269779864135420554079999985407760010156788-7846835503567657888732542053214 Q ss_pred ------------------HHHH--------HHCCCCCCCCCCC-------------HHHHHHHHHH-HHH----HHHHHH Q ss_conf ------------------1256--------6348777854389-------------7899999975-433----356688 Q gi|254780655|r 282 ------------------KATR--------KALNWDLDPFFIP-------------DDIMKKWRLA-GLR----SSQTRA 317 (673) Q Consensus 282 ------------------~~~~--------k~lg~~~~~f~ip-------------~~v~~~~~~~-~~~----~~~~~~ 317 (673) T Consensus 286 AvG~RFdDRvTGnl~~FAp~AkraaaeGrGGiiHiDIDPaeIgK~v~~diPiVGDAr~VL~~ll~~~~~~~~~~~~~~~~ 365 (593) T TIGR00118 286 AVGARFDDRVTGNLAKFAPNAKRAAAEGRGGIIHIDIDPAEIGKNVRVDIPIVGDARNVLEELLKKLEKEKALKERSEEQ 365 (593) T ss_pred EEEEEECCCCCCCHHHHCHHHHHHHHCCCCCEEEEEECCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHCCCCCCHHH T ss_conf 53000056634877672316567541478736999853765577114640103675899999999987630356722488 Q ss_pred HHHHHHHHHHHHHHHC-CCCHHHHHCCCCCHHHHHHHCCCCCCCCCCCCHHHHHHHHHHHHHHHHHH---HHHCCCCCCC Q ss_conf 7642467631111100-23001110776302355542000001355431013467888998865543---3220345556 Q gi|254780655|r 318 DWQERLSSMKSSIRKE-FERRFSDALPDCFDNAFINLKKKFEHSKPMIATRKSSELVLEVVNDCLPE---LIGGSADLTG 393 (673) Q Consensus 318 ~w~~~~~~~~~~~~~e-~~~~~~~~~p~~~~~~~~~~~~~~~~~~~~vatr~a~g~~l~~i~~~~p~---iv~~sADl~~ 393 (673) T Consensus 366 ~W~~~i~~Wk~~~~l~Y~~~~~~~ki------------------K--------PQ~vi~~~~~~~~~~~~~aivTTDV-G 418 (593) T TIGR00118 366 AWLEQINKWKKEYPLAYMDYTEEGKI------------------K--------PQQVIEEISRVTKDIGREAIVTTDV-G 418 (593) T ss_pred HHHHHHHHHHHHCCHHHCCCCCCCCC------------------C--------CHHHHHHHHHHCCCCCCCEEEECCC-C T ss_conf 99999999876147312466788853------------------6--------0799999999627888536897277-7 Q ss_pred CCCCCCCCCCCCCCCCCHHHCCCCCCCHHHHHHHHHHH--HH----CCCCCCEE-----CCCHHHHHHHHHHHHHHHHHH Q ss_conf 74000266634454320010032576200235678799--87----28876220-----010035553001245411110 Q gi|254780655|r 394 SNGTKTSQMKAISKSDFSGRYLHYGVREHAMAAAMNGI--AL----HKGLAPYS-----GTFMVFSDYSRPAIRLASLMG 462 (673) Q Consensus 394 St~~~~~~~~~~~~~~~p~r~i~~GIaE~~~~~~aaGl--a~----~~g~~p~~-----~tf~~F~~~~~~~ir~~al~~ 462 (673) T Consensus 419 QhQ-MW--aA~fy~~~~Pr~fI~SG----GLGTMGFGlPAAiGAkvA~pe~~Vi~i~GDGsF~Mn~QE----L~t~~~y~ 487 (593) T TIGR00118 419 QHQ-MW--AAQFYPFKKPRKFITSG----GLGTMGFGLPAAIGAKVAKPEETVICITGDGSFQMNLQE----LSTIVQYD 487 (593) T ss_pred HHH-HH--HHHHCCCCCCCCEECCC----CCCCCCCCCHHHHCCCCCCCCCCEEEEECCCCCCCHHHH----HHHHHHCC T ss_conf 347-88--98615777886413137----763110102688600004788664787538732123467----88998718 Q ss_pred CCCEEEC-CCCCCCCC------------CCCCHHHHC--CCCCHHHHHCCCCEEEECCHHHHHHHHHHHHCCC--CCCEE Q ss_conf 0001302-45433333------------333101000--2221011101221121120124577776520256--78349 Q gi|254780655|r 463 IRVIHVL-THDSIGLG------------EDGPTHQPV--EHLAALRAIPDLLVLRPADSIETLECWQVALKEK--NRPSV 525 (673) Q Consensus 463 ~~v~~v~-th~gi~~G------------~DGpTHq~i--edia~lr~iPnl~v~~P~d~~E~~~~~~~al~~~--~gP~~ 525 (673) T Consensus 488 iPV~i~iLNN~~--LGMV~QWQ~lfY~~RyS~t~~~~~~PDF~kLAEayG~~G~ri~~~~E~~~kL~Ea~~~~r~n~Pv~ 565 (593) T TIGR00118 488 IPVKIVILNNRY--LGMVRQWQELFYEERYSETHMGSELPDFVKLAEAYGIKGIRIEKPEELDEKLKEALESKRNNEPVL 565 (593) T ss_pred CCEEEEEECCCC--CCHHHHHHHHHHCCCHHHHHHCCCCCHHHHHHHHCCCCEEEECCHHHHHHHHHHHHHHCCCCCCEE T ss_conf 964999845896--560488888752110235763068942899998729502554788779999999986146888469 Q ss_pred EEE Q ss_conf 995 Q gi|254780655|r 526 LSL 528 (673) Q Consensus 526 ir~ 528 (673) T Consensus 566 ~Dv 568 (593) T TIGR00118 566 LDV 568 (593) T ss_pred EEE T ss_conf 999

HHsearch alignment for GI: 254780655 and conserved domain: TIGR00118