DXS_BRASB
ID DXS_BRASB Reviewed; 641 AA.
AC A5EEQ0;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 12-JUN-2007, sequence version 1.
DT 03-AUG-2022, entry version 87.
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=BBta_2479;
OS Bradyrhizobium sp. (strain BTAi1 / ATCC BAA-1182).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Bradyrhizobiaceae; Bradyrhizobium; unclassified Bradyrhizobium.
OX NCBI_TaxID=288000;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=BTAi1 / ATCC BAA-1182;
RX PubMed=17540897; DOI=10.1126/science.1139548;
RA Giraud E., Moulin L., Vallenet D., Barbe V., Cytryn E., Avarre J.-C.,
RA Jaubert M., Simon D., Cartieaux F., Prin Y., Bena G., Hannibal L.,
RA Fardoux J., Kojadinovic M., Vuillet L., Lajus A., Cruveiller S., Rouy Z.,
RA Mangenot S., Segurens B., Dossat C., Franck W.L., Chang W.-S., Saunders E.,
RA Bruce D., Richardson P., Normand P., Dreyfus B., Pignol D., Stacey G.,
RA Emerich D., Vermeglio A., Medigue C., Sadowsky M.;
RT "Legumes symbioses: absence of nod genes in photosynthetic bradyrhizobia.";
RL Science 316:1307-1312(2007).
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;
CC Evidence={ECO:0000255|HAMAP-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}.
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DR EMBL; CP000494; ABQ34644.1; -; Genomic_DNA.
DR RefSeq; WP_012042672.1; NC_009485.1.
DR AlphaFoldDB; A5EEQ0; -.
DR SMR; A5EEQ0; -.
DR STRING; 288000.BBta_2479; -.
DR EnsemblBacteria; ABQ34644; ABQ34644; BBta_2479.
DR KEGG; bbt:BBta_2479; -.
DR eggNOG; COG1154; Bacteria.
DR HOGENOM; CLU_009227_1_4_5; -.
DR OMA; QVGYHAQ; -.
DR OrthoDB; 566385at2; -.
DR UniPathway; UPA00064; UER00091.
DR Proteomes; UP000000246; Chromosome.
DR GO; GO:0008661; F:1-deoxy-D-xylulose-5-phosphate synthase activity; IEA:UniProtKB-UniRule.
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: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 Gene3D; 3.40.50.920; -; 1.
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; IPR005474; Transketolase_N.
DR PANTHER; PTHR43322; PTHR43322; 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; SSF52518; 2.
DR SUPFAM; SSF52922; SSF52922; 1.
DR TIGRFAMs; TIGR00204; dxs; 1.
DR PROSITE; PS00801; TRANSKETOLASE_1; 1.
DR PROSITE; PS00802; TRANSKETOLASE_2; 1.
PE 3: Inferred from homology;
KW Isoprene biosynthesis; Magnesium; Metal-binding; Thiamine biosynthesis;
KW Thiamine pyrophosphate; Transferase.
FT CHAIN 1..641
FT /note="1-deoxy-D-xylulose-5-phosphate synthase"
FT /id="PRO_1000205065"
FT BINDING 79
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 120..122
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 151
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 152..153
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 180
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 180
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 290
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 372
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
SQ SEQUENCE 641 AA; 69047 MW; 19010DBFBC09A5BA CRC64;
MTTFSKTPLL DTIKTPEDLR RLKVEQVRQV ADELRQETID AVSVTGGHFG AGLGVVELTT
AIHYVFDTPR DRLIWDVGHQ AYPHKILTGR RDRIRTLRTG GGLSGFTKRT ESDYDPFGAA
HSSTSISAGL GMAVARDLSG GKNNVIAVIG DGAMSAGMAY EAMNNAGAMN SRLIVILNDN
DMSIAPPVGA MSAYLSRLYS GKTYRTLRDA AKQLGQHLPK VIANRASRVE EYSRGFMMDG
GTLFEELGFY YVGPIDGHNL DHLLPVLKNV RDMETGPILV HVVTQKGKGY PPAEASADKY
HAVVKFDVAT GTQAKAKPNA PAYQNVFGQS LVKEAEKDDK VVGITAAMPS GTGIDIFAKA
FPKRTFDVGI AEQHAVTFAA GLAAEGFKPF CAIYSTFLQR GYDQIVHDVC IQSLPVRFAI
DRAGLVGADG ATHAGSFDNA YLGCLPNMVI MAASDEAELV HMVATQVAIN DRPSSVRYPR
GEGRGVEMPE VGVPLPIGKG RMIRQGKQVA LLSFGTRLAE CEKAADELAA HGLSASIADA
RFMKPLDEEL VLKLAREHEI LITIEEGSIG GFGSHVMQYL ADQGMLDGGL KMRSMVLPDE
FQDHDTPAAM YARAGLDAKG IVRKVFEALG KDYTAEVVKL A
