DXS_DESHD
ID DXS_DESHD Reviewed; 631 AA.
AC B8FQ45;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 03-MAR-2009, sequence version 1.
DT 03-AUG-2022, entry version 70.
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=Dhaf_3488;
OS Desulfitobacterium hafniense (strain DSM 10664 / DCB-2).
OC Bacteria; Firmicutes; Clostridia; Eubacteriales; Desulfitobacteriaceae;
OC Desulfitobacterium.
OX NCBI_TaxID=272564;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 10664 / DCB-2;
RX PubMed=22316246; DOI=10.1186/1471-2180-12-21;
RA Kim S.H., Harzman C., Davis J.K., Hutcheson R., Broderick J.B., Marsh T.L.,
RA Tiedje J.M.;
RT "Genome sequence of Desulfitobacterium hafniense DCB-2, a Gram-positive
RT anaerobe capable of dehalogenation and metal reduction.";
RL BMC Microbiol. 12:21-21(2012).
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; CP001336; ACL21506.1; -; Genomic_DNA.
DR RefSeq; WP_005810949.1; NC_011830.1.
DR AlphaFoldDB; B8FQ45; -.
DR SMR; B8FQ45; -.
DR EnsemblBacteria; ACL21506; ACL21506; Dhaf_3488.
DR KEGG; dhd:Dhaf_3488; -.
DR HOGENOM; CLU_009227_1_4_9; -.
DR OMA; QVGYHAQ; -.
DR UniPathway; UPA00064; UER00091.
DR Proteomes; UP000007726; 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..631
FT /note="1-deoxy-D-xylulose-5-phosphate synthase"
FT /id="PRO_1000132930"
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 366
FT /ligand="thiamine diphosphate"
FT /ligand_id="ChEBI:CHEBI:58937"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00315"
SQ SEQUENCE 631 AA; 69291 MW; 96F6DBBC16D76F27 CRC64;
MGILAKIEQP RDLKGLTYPE LEQLAQEIRA EMIDVVSANG GHLAPNLGVV ELTLALHRVF
DSPKDKIIWD VGHQSYVHKL VTGRQKEFKS LRLYKGLSGF PKRCESPHDC FETGHSSTSI
SAAVGFAKAR DLRKEKNQVV AVIGDGAMTG GMAFEALNHA GHTKTNMIVV LNDNEMAIAQ
NVGAMSSYLN RLRTDPRYDR SKDEIENLLK RIPGIGSKMA KAAEKAKDSL KYLLVPGLLF
EEMGFTYLGP VNGHDQIALE QVFEQAKMVK EPVLVHVLTQ KGRGYEPSEK NPALFHGVGP
FNKVTGEVIK KPAPPTYTQV FGEALCELAE KDPRITAITA AMPSGTGLNL FAQKFPDRFF
DVGIAEQHAV TFSAALAFGG MKPVVSIYST FYQRAYDQVL HDVCLPHANV VMAIDRAGVV
GDDGPTHHGV FDISFLRVIP NLVFMAPKDE NELRHMLYTS LQLDGPVALR YPRSVGQGVE
LTEELRELPV GKAEILQEGK DITLIGVGPM VYTCLAAAVE LRHRGVEATV INLRYINPLD
RESILRYARM TKRIITVEDH MLAGGMGSAV MEVLGDEGLT DVVVERLGYD EYVDQGAISL
LHQGYGLSVV GILKAAERLK VLQRIEGRSS V
