ID   DXS_HELPY               Reviewed;         618 AA.
AC   O25121;
DT   21-FEB-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   27-MAR-2024, entry version 140.
DE   RecName: Full=1-deoxy-D-xylulose-5-phosphate synthase {ECO:0000255|HAMAP-Rule:MF_00315};
DE            EC=2.2.1.7 {ECO:0000255|HAMAP-Rule:MF_00315};
DE   AltName: Full=1-deoxyxylulose-5-phosphate synthase {ECO:0000255|HAMAP-Rule:MF_00315};
DE            Short=DXP synthase {ECO:0000255|HAMAP-Rule:MF_00315};
DE            Short=DXPS {ECO:0000255|HAMAP-Rule:MF_00315};
GN   Name=dxs {ECO:0000255|HAMAP-Rule:MF_00315}; OrderedLocusNames=HP_0354;
OS   Helicobacter pylori (strain ATCC 700392 / 26695) (Campylobacter pylori).
OC   Bacteria; Campylobacterota; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=85962;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700392 / 26695;
RX   PubMed=9252185; DOI=10.1038/41483;
RA   Tomb J.-F., White O., Kerlavage A.R., Clayton R.A., Sutton G.G.,
RA   Fleischmann R.D., Ketchum K.A., Klenk H.-P., Gill S.R., Dougherty B.A.,
RA   Nelson K.E., Quackenbush J., Zhou L., Kirkness E.F., Peterson S.N.,
RA   Loftus B.J., Richardson D.L., Dodson R.J., Khalak H.G., Glodek A.,
RA   McKenney K., FitzGerald L.M., Lee N., Adams M.D., Hickey E.K., Berg D.E.,
RA   Gocayne J.D., Utterback T.R., Peterson J.D., Kelley J.M., Cotton M.D.,
RA   Weidman J.F., Fujii C., Bowman C., Watthey L., Wallin E., Hayes W.S.,
RA   Borodovsky M., Karp P.D., Smith H.O., Fraser C.M., Venter J.C.;
RT   "The complete genome sequence of the gastric pathogen Helicobacter
RT   pylori.";
RL   Nature 388:539-547(1997).
CC   -!- FUNCTION: Catalyzes the acyloin condensation reaction between C atoms 2
CC       and 3 of pyruvate and glyceraldehyde 3-phosphate to yield 1-deoxy-D-
CC       xylulose-5-phosphate (DXP). {ECO:0000255|HAMAP-Rule:MF_00315}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=D-glyceraldehyde 3-phosphate + H(+) + pyruvate = 1-deoxy-D-
CC         xylulose 5-phosphate + CO2; Xref=Rhea:RHEA:12605, ChEBI:CHEBI:15361,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:16526, ChEBI:CHEBI:57792,
CC         ChEBI:CHEBI:59776; EC=2.2.1.7; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00315};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00315};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00315};
CC   -!- COFACTOR:
CC       Name=thiamine diphosphate; Xref=ChEBI:CHEBI:58937;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00315};
CC       Note=Binds 1 thiamine pyrophosphate per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00315};
CC   -!- PATHWAY: Metabolic intermediate biosynthesis; 1-deoxy-D-xylulose 5-
CC       phosphate biosynthesis; 1-deoxy-D-xylulose 5-phosphate from D-
CC       glyceraldehyde 3-phosphate and pyruvate: step 1/1. {ECO:0000255|HAMAP-
CC       Rule:MF_00315}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00315}.
CC   -!- SIMILARITY: Belongs to the transketolase family. DXPS subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00315}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AE000511; AAD07422.1; -; Genomic_DNA.
DR   PIR; B64564; B64564.
DR   RefSeq; NP_207152.1; NC_000915.1.
DR   AlphaFoldDB; O25121; -.
DR   SMR; O25121; -.
DR   DIP; DIP-3091N; -.
DR   IntAct; O25121; 5.
DR   MINT; O25121; -.
DR   STRING; 85962.HP_0354; -.
DR   PaxDb; 85962-C694_01795; -.
DR   EnsemblBacteria; AAD07422; AAD07422; HP_0354.
DR   KEGG; hpy:HP_0354; -.
DR   PATRIC; fig|85962.8.peg.367; -.
DR   eggNOG; COG1154; Bacteria.
DR   InParanoid; O25121; -.
DR   OrthoDB; 9803371at2; -.
DR   PhylomeDB; O25121; -.
DR   UniPathway; UPA00064; UER00091.
DR   Proteomes; UP000000429; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0008661; F:1-deoxy-D-xylulose-5-phosphate synthase activity; IBA:GO_Central.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030976; F:thiamine pyrophosphate binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0052865; P:1-deoxy-D-xylulose 5-phosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0019288; P:isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway; IBA:GO_Central.
DR   GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0009228; P:thiamine biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd02007; TPP_DXS; 1.
DR   CDD; cd07033; TPP_PYR_DXS_TK_like; 1.
DR   Gene3D; 3.40.50.920; -; 1.
DR   Gene3D; 3.40.50.970; -; 2.
DR   HAMAP; MF_00315; DXP_synth; 1.
DR   InterPro; IPR005477; Dxylulose-5-P_synthase.
DR   InterPro; IPR029061; THDP-binding.
DR   InterPro; IPR009014; Transketo_C/PFOR_II.
DR   InterPro; IPR005475; Transketolase-like_Pyr-bd.
DR   InterPro; IPR020826; Transketolase_BS.
DR   InterPro; IPR033248; Transketolase_C.
DR   InterPro; IPR049557; Transketolase_CS.
DR   NCBIfam; TIGR00204; dxs; 1.
DR   PANTHER; PTHR43322; 1-D-DEOXYXYLULOSE 5-PHOSPHATE SYNTHASE-RELATED; 1.
DR   PANTHER; PTHR43322:SF5; 1-DEOXY-D-XYLULOSE-5-PHOSPHATE SYNTHASE, CHLOROPLASTIC; 1.
DR   Pfam; PF13292; DXP_synthase_N; 1.
DR   Pfam; PF02779; Transket_pyr; 1.
DR   Pfam; PF02780; Transketolase_C; 1.
DR   SMART; SM00861; Transket_pyr; 1.
DR   SUPFAM; SSF52518; Thiamin diphosphate-binding fold (THDP-binding); 2.
DR   SUPFAM; SSF52922; TK C-terminal domain-like; 1.
DR   PROSITE; PS00801; TRANSKETOLASE_1; 1.
DR   PROSITE; PS00802; TRANSKETOLASE_2; 1.
PE   3: Inferred from homology;
KW   Isoprene biosynthesis; Magnesium; Metal-binding; Reference proteome;
KW   Thiamine biosynthesis; Thiamine pyrophosphate; Transferase.
FT   CHAIN           1..618
FT                   /note="1-deoxy-D-xylulose-5-phosphate synthase"
FT                   /id="PRO_0000189119"
FT   BINDING         70
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT   BINDING         111..113
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT   BINDING         142
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT   BINDING         143..144
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT   BINDING         171
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT   BINDING         171
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT   BINDING         278
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT   BINDING         360
FT                   /ligand="thiamine diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:58937"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
SQ   SEQUENCE   618 AA;  67634 MW;  87334832DAFE3383 CRC64;
     MILQNKTFDL NPNDIAGLEL VCQTLRNRIL EVVSANGGHL SSSLGAVELI VGMHALFDCQ
     KNPFIFDTSH QAYAHKLLTG RFESFSTLRQ FKGLSGFTKP SESAYDYFIA GHSSTSVSIG
     VGVAKAFCLK QALGMPIALL GDGSISAGIF YEALNELGDR KYPMIMILND NEMSISTPIG
     ALSKALSQLM KGPFYQSFRS KVKKILSTLP ESVNYLASRF EESFKLITPG VFFEELGINY
     IGPINGHDLS AIIETLKLAK ELKEPVLIHA QTLKGKGYKI AEGRYEKWHG VGPFDLDTGL
     SKKSKSAILS PTEAYSNTLL ELAKKDEKIV GVTAAMPSGT GLDKLIDAYP LRFFDVAIAE
     QHALTSSSAM AKEGFKPFVS IYSTFLQRAY DSIVHDACIS SLPIKLAIDR AGIVGEDGET
     HQGLLDVSYL RSIPNMVIFA PRDNETLKNA VRFANEHDSS PCAFRYPRGS FALKEGVFEP
     SGFVLGQSEL LKKEGEILLI GYGNGVGRAH LVQLALKEKN IECALLDLRF LKPLDPNLSA
     IVAPYQKLYV FSDNYKLGGV ASAILEFLSE QNILKPVKSF EIIDEFIMHG NTALVEKSLG
     LDTESLTDAI LKDLGQER
//