>TIGR00204 dxs 1-deoxy-D-xylulose-5-phosphate synthase; InterPro: IPR005477 DXP synthase is a thiamine diphosphate-dependent enzyme related to transketolase and the pyruvate dehydrogenase E1-beta subunit. DXP synthase is found in bacteria (gene dxs) and plants (gene CLA1) which catalyzes the thiamine pyrophosphoate-dependent acyloin condensation reaction between carbon atoms 2 and 3 of pyruvate and glyceraldehyde 3-phosphate to yield 1-deoxy-D- xylulose-5-phosphate (dxp), a precursor in the biosynthetic pathway to isoprenoids, thiamine (vitamin B1), and pyridoxol (vitamin B6). DXP synthase is evolutionary related to TK. The N-terminal section, contains a histidine residue which appears to function in proton transfer during catalysis . In the central section there are conserved acidic residues that are part of the active cleft and may participate in substrate-binding . This family includes transketolase enzymes 2.2.1.1 from EC. and also partially matches to 2-oxoisovalerate dehydrogenase beta subunit P37941 1.2.4.4 from EC. Both these enzymes utilise thiamine pyrophosphate as a cofactor, suggesting there may be common aspects in their mechanism of catalysis.; GO: 0008661 1-deoxy-D-xylulose-5-phosphate synthase activity, 0016114 terpenoid biosynthetic process.

Probab=100.00 E-value=0 Score=530.91 Aligned_cols=558 Identities=22% Similarity=0.369 Sum_probs=467.1 Q ss_pred CCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCHHHHHHHHHHHHEEECCCCCCCCCCCEEEEECC Q ss_conf 99887676433468888999999999999999999738897643136899999984332544577898878877998565 Q gi|254780655|r 1 MGHPVGGRNVVLMKYDDDYKKMADAIRFLSMDAIENVNSGHPGLPMGMADVVTALFTQCMVFDPQCPYWPNRDRFVLSAG 80 (673) Q Consensus 1 ~~~~~~~~~~~~~~~~~~l~~~a~~iR~~~~~~v~~a~~GH~g~~l~~~el~~~L~~~~~~~~~~~p~~~~rDr~v~s~G 80 (673) T Consensus 4 ~~~~~~l~~~~~----~~l~~~~~~~~~~~~~~~~~-~~g~~~~~lg~~~l~~~~~~---~~~--~~----~~~~~wd~g 69 (627) T TIGR00204 4 LNSPSDLKLLSI----DELEKLCDELREYLLESVSA-SGGHLGPGLGVVELTVALHY---LFD--TP----KDPLIWDVG 69 (627) T ss_pred CCCCHHHCCCCH----HHHHHHHHHHHHHHHHHHHC-CCCCCCCCCCHHHHHHHHHH---HHC--CC----CCCEEEECC T ss_conf 556123124664----46789999999988876530-46533344423345655676---542--76----433033134 Q ss_pred CCHHHHHHHHHHCCCCCCCHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHCCCCCCCC Q ss_conf 20189999999707688998898640003887988988889987306888631479999999999998534268876784 Q gi|254780655|r 81 HGSMLYYALLYLLGYQDVTIEDIKNFRTIGSKTAGHPEYGSCAGIEATTGPLGQGIANAVGMAIAERKLREEFGDVLIDH 160 (673) Q Consensus 81 H~s~~~Y~~~~l~G~~~~~~e~l~~~r~~~s~~~Ghpe~~~~~~v~~~tG~lG~gis~a~G~A~a~k~~~~~~~~~~~d~ 160 (673) T Consensus 70 ~~~---y~~~~l~g~~----~~~~~~~~~~g-~~~~~~~~~~~~d~~~~g~~~~~~~~g~g~~~~~~~~-~~------~~ 134 (627) T TIGR00204 70 HQA---YPHKLLTGRG----EEFSTLRQKDG-LHGFPKRSESEYDVFGAGHSSTSISAGLGVALARDLK-GA------DG 134 (627) T ss_pred CHH---HHHHHHHCCC----HHHHHHHHCCC-CCCCCCCCCCCCCEEECCCCCCHHHHHHHHHHHHHHH-CC------CC T ss_conf 202---2344441241----13344443056-6777776542210001254310123344456665431-13------66 Q ss_pred EEEEEECCCCCCCHHHHHHHHHHHHH-CCCCEEEEEECCCCCCCCCCCCCCC---------------------------- Q ss_conf 59998436211434455788765220-2233069996276322322355678---------------------------- Q gi|254780655|r 161 YTYVLVGDGCLMEGISQEAISFAGHL-GLSKLIVLWDNNGISIDGPISLADS---------------------------- 211 (673) Q Consensus 161 ~v~~iiGDG~l~eG~~~EAl~~A~~~-~l~nli~i~d~N~~si~~~~~~~~~---------------------------- 211 (673) T Consensus 135 ~~~~~~gdg~~~~g~~~~~~~~~g~~p~-~~~~~~l~d~~~~~~~~~g~~~~~l~~~~~~~~~~~~~~~~~~~~~~~p~~ 213 (627) T TIGR00204 135 KPVCLIGDGALTGGLALEALNHAGDLPK-TDLLVILNDNEMSISPNVGALSNHLGRLRSGSLYQSLRDGLKKLLKKLPPV 213 (627) T ss_pred CEEEEECCCCHHHHHHHHHHHHHCCCCC-CCEEEEECCCCCCCCCCHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHCCCC T ss_conf 1367641530123467776664125677-653888737532224432478888887640210234553467876414510 Q ss_pred --------------------CCHHHHHHHCCCCCCC-CCCCCHHHHHHHHHHHHHCCCCHHHHHCCCCCCCCCCCCCC-C Q ss_conf --------------------2179988641444444-44440678888888751102210222013345557000477-1 Q gi|254780655|r 212 --------------------TDQYARFRASGWNTLS-VNGHDHHAITSTLRKAQLSDKPTMIACETVIGFGSPNRAGT-N 269 (673) Q Consensus 212 --------------------~~~~~~~~a~Gw~~~~-vdG~d~~~i~~a~~~ak~~~kP~~I~~~T~kG~G~~~~e~~-~ 269 (673) T Consensus 214 ~~~~~~~~~~~~~~~~~~~~~~~g~~~~~lg~~y~gp~~g~~~~~~~~~~~~~~~~~gp~~~~~~~~~g~gy~~~~~~~~ 293 (627) T TIGR00204 214 GNYLAPLAERVEESLKGLLVPPVGTLFEELGFNYLGPVDGHDLSELIETLKNAKKLKGPVLLHVSTKKGKGYKPAEKDPI 293 (627) T ss_pred HHHHHHHHHHHHHHHCEECCCCCHHHHHHHCCCEECCCCCCCHHHHHHHHHHHHHCCCCEEEEEEECCCCCCCCCCCCCC T ss_conf 13556778876653200001430023343054100665653078999988876523785378876215776443345523 Q ss_pred C-CCCCCCCHHHHHHHHHHCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCHHHH-HCCCCCH Q ss_conf 1-0334372233212566348777854389789999997543335668876424676311111002300111-0776302 Q gi|254780655|r 270 K-VHGSALGQEEIKATRKALNWDLDPFFIPDDIMKKWRLAGLRSSQTRADWQERLSSMKSSIRKEFERRFSD-ALPDCFD 347 (673) Q Consensus 270 ~-~HG~~l~~ee~~~~~k~lg~~~~~f~ip~~v~~~~~~~~~~~~~~~~~w~~~~~~~~~~~~~e~~~~~~~-~~p~~~~ 347 (673) T Consensus 294 ~~~~~~~------------------~~~~~~----------------------------------------g~~~~~~-- 313 (627) T TIGR00204 294 GTWHGVG------------------PFDLST----------------------------------------GKLLPKS-- 313 (627) T ss_pred CEECCCC------------------CCCCCC----------------------------------------CCCCCCC-- T ss_conf 2002567------------------656443----------------------------------------3102355-- Q ss_pred HHHHHHCCCCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCCCCCCCHHHCCCCCCCHHHHHHH Q ss_conf 35554200000135543101346788899886554332203455567400026663445432001003257620023567 Q gi|254780655|r 348 NAFINLKKKFEHSKPMIATRKSSELVLEVVNDCLPELIGGSADLTGSNGTKTSQMKAISKSDFSGRYLHYGVREHAMAAA 427 (673) Q Consensus 348 ~~~~~~~~~~~~~~~~vatr~a~g~~l~~i~~~~p~iv~~sADl~~St~~~~~~~~~~~~~~~p~r~i~~GIaE~~~~~~ 427 (673) T Consensus 314 ------------~~~~p~~~~~~~~~~~~~~~~~~~~~~~~~~~~~g~g~------~~~~~~~p~~~~d~~~~~~~~~~~ 375 (627) T TIGR00204 314 ------------KSAPPSYSKLFGDTLCELAKKDGKIVGITPAMPEGSGL------DKLSDKFPDRYFDVGIAEQHAVTL 375 (627) T ss_pred ------------CCCCCCHHHHHHHHHHHHHHCCCCEEEEECCCCCCCCH------HHHHHHHHHHHHHHHHHHHHHHHH T ss_conf ------------45566413555567887753056525520122223314------688875003454233323455666 Q ss_pred HHHHHHCCCCCCEECCCHHHHHHHHHH-HHHHHHHHCCCEEECCCCCCCCCCCCCHHHHCCCCCHHHHHCCCCEEEECCH Q ss_conf 879987288762200100355530012-4541111000013024543333333310100022210111012211211201 Q gi|254780655|r 428 MNGIALHKGLAPYSGTFMVFSDYSRPA-IRLASLMGIRVIHVLTHDSIGLGEDGPTHQPVEHLAALRAIPDLLVLRPADS 506 (673) Q Consensus 428 aaGla~~~g~~p~~~tf~~F~~~~~~~-ir~~al~~~~v~~v~th~gi~~G~DGpTHq~iedia~lr~iPnl~v~~P~d~ 506 (673) T Consensus 376 ~~~~~~-~g~~p~~~~y~~~l~~~yd~~~~d~~~~~~p~~~~~d~~g~-~g~dg~~~~g~~d~~~~~~~p~~~~~~p~d~ 453 (627) T TIGR00204 376 AAGLAI-EGYKPFVAIYSTFLQRAYDQVVHDVCIQNLPVFFAIDRAGI-VGADGETHQGLFDISYLRCIPNLVLMAPKDE 453 (627) T ss_pred HHHHHH-CCCCHHHHHHHHHHHHHHHHHHHHHHHHHCCCEEEECCCCC-CCCCCCCCCCHHHHHHHHHCCCCEEECCCCH T ss_conf 655542-24303788888887666677888777630550244123342-1477641021355677653130013236634 Q ss_pred HHHHHHHHHHHCCCCCCEEEEECCCCCCCCCCCCCCCCCCCCCCEEEEECCCCCEEEEECCHHHHHHHHHHHHHHHCCCC Q ss_conf 24577776520256783499952444433456655322123473799856997299995268899999999999973994 Q gi|254780655|r 507 IETLECWQVALKEKNRPSVLSLSRQNLPFLRTQYESNNLCALGAYDYISTPNAQVTIFSSGSELKIAVEACEILSSRNIS 586 (673) Q Consensus 507 ~E~~~~~~~al~~~~gP~~ir~~R~~~p~~~~~~~~~~~~~~G~~~~~~~~~~dv~iia~G~~v~~al~aa~~L~~~Gi~ 586 (673) T Consensus 454 ~~~~~~~~~~~~~~~~p~~~~~p~g~~~g~~~~~~~~~~~~~g~~~~~~~-g~~~~~~~~g~~~~~~~~~~~~l~~~~~~ 532 (627) T TIGR00204 454 NELRQMLYTGYEYDGGPIAVRYPRGNGLGVELTPEPWEGLPIGKSELLRK-GGDLLLLGFGTLVPPALEVAEALNEEGLE 532 (627) T ss_pred HHHHHHHHHHHCCCCCCEEEECCCCCCCCCCCCCCCCCCCCCCHHHHHCC-CCCEEEEECCCHHHHHHHHHHHHHHCCCE T ss_conf 56666665311147752045314655333433213543221240231037-77468873352135788999987533760 Q ss_pred EEEEECCCCCHHCCCCHHHHHHHCCCCCEEEEEC-----CCCHHHHHHHHCCCC-CE-----EEE-CCCCCCCCHHHHHH Q ss_conf 3998574658100086889996436797799972-----860278999845798-18-----983-57767688889999 Q gi|254780655|r 587 TRVVSVPCFELFFEQSDSYRAQIIGSSPIKIAIE-----AGLRQGWDAFIGSDG-SF-----IGM-QGFGASGSCDLLYQ 654 (673) Q Consensus 587 ~~Vi~~~s~k~ld~~~~~~~~~il~~~~~~vtiE-----~g~~~g~~~~~~~~~-~~-----igi-d~Fg~sg~~~el~~ 654 (673) T Consensus 533 ~~~~~~~~~~p~d~---~~~~~~~~~~~~~~~~~~~~~~gg~g~~~~~~~~~~~~~~~p~~~~g~pd~~~~~~~~~~~~~ 609 (627) T TIGR00204 533 ATLVDLRFVKPLDE---ELILPLAAPHGKLVTLEENALLGGFGSAVLEFLSDQGEKLTPLKRLGLPDEFIPHGTPEELLA 609 (627) T ss_pred EEEECHHHHCCCCH---HHHHHHHHCCCCEEEEECCHHCCCHHHHHHHHHHHCCCCCCHHHHHCCCHHHHCCCCHHHHHH T ss_conf 56520022031346---889988630330355301101032046889988624740002444144124431564677887 Q ss_pred HCCCCHHHHHHHHHHHHC Q ss_conf 809998999999999848 Q gi|254780655|r 655 HFGINAIAIVDMVERKLS 672 (673) Q Consensus 655 ~~Gld~~~I~~~i~~~L~ 672 (673) T Consensus 610 ~~gl~~~~~~~~~~~~~~ 627 (627) T TIGR00204 610 DLGLDTAGLADKILALLG 627 (627) T ss_pred HHCCCHHHHHHHHHHHCC T ss_conf 625776788999987419

HHsearch alignment for GI: 254780655 and conserved domain: TIGR00204