DXS_SYNC1
ID DXS_SYNC1 Reviewed; 634 AA.
AC Q3A3Z6;
DT 31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT 22-NOV-2005, sequence version 1.
DT 03-AUG-2022, entry version 100.
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=Pcar_1667;
OS Syntrophotalea carbinolica (strain DSM 2380 / NBRC 103641 / GraBd1)
OS (Pelobacter carbinolicus).
OC Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC Syntrophotaleaceae; Syntrophotalea.
OX NCBI_TaxID=338963;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 2380 / NBRC 103641 / GraBd1;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Chertkov O., Schmutz J., Larimer F.,
RA Land M., Kyrpides N., Ivanova N., Richardson P.;
RT "Complete sequence of Pelobacter carbinolicus DSM 2380.";
RL Submitted (OCT-2005) to the EMBL/GenBank/DDBJ databases.
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; CP000142; ABA88911.1; -; Genomic_DNA.
DR AlphaFoldDB; Q3A3Z6; -.
DR SMR; Q3A3Z6; -.
DR STRING; 338963.Pcar_1667; -.
DR EnsemblBacteria; ABA88911; ABA88911; Pcar_1667.
DR KEGG; pca:Pcar_1667; -.
DR eggNOG; COG1154; Bacteria.
DR HOGENOM; CLU_009227_1_4_7; -.
DR OMA; FAPQGMF; -.
DR UniPathway; UPA00064; UER00091.
DR Proteomes; UP000002534; 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; Reference proteome;
KW Thiamine biosynthesis; Thiamine pyrophosphate; Transferase.
FT CHAIN 1..634
FT /note="1-deoxy-D-xylulose-5-phosphate synthase"
FT /id="PRO_0000256450"
FT BINDING 73
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 114..116
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 145
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 146..147
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 174
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 174
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 285
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
FT BINDING 367
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
SQ SEQUENCE 634 AA; 68237 MW; 5FA383EEF663C973 CRC64;
MSMLKNLKSP AELKGLSVKE LEVLAGEIRT KIIDTVSQTG GHLASSLGVV ELTIALHHVL
NTPVDKIVWD VGHQAYAHKL LTGRLDRFDT LRQLGGISGF PKREESPYDA FDVGHSSTSI
SAALGMAAAR DCKNGKEKFV AVIGDGSLTG GMAFEALNQA GDQNKNLIVI LNDNEMSISQ
NVGALSSLIN RKMTSELVVR LKKEAENFLG HVPRIGKDLL KVARKAEESL KGFFTPGMLF
EAFGFDYVGP LNGHRLETLI PALENVANLE GPVLVHVVTR KGKGFEPAEK NPSLFHGVGP
FDKETGEVRA SKGGPASFTG VFGSTLTAMA EKDDRIVAIT AAMLEGTGLK EFSKRYPSRF
FDVGIAEQHA VTFAAGLACQ GMRPVVALYS TFLQRAYDNV VHDVALQRLP VTFAIDRGGL
VGADGPTHHG VFDYSFLRHI PNMVVIAPRD EIELQRAMLT GTQHDGPLAY RYPRGKALGL
ELPDSVESMP IGKGEKLRDG SDAVIFALGV VCKEALVASD ILAGEGLSVA VVDPRFLKPL
DQQLLIAEAR RTGVVVTVEE NVRQGGFGSA VLEMLADEGL AVRVLRIGLP DRFIEQGTQQ
QLYARYGLDA EGIAASVRNF MHHDRGDASS TALA
