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RIBB_SALPC
ID   RIBB_SALPC              Reviewed;         217 AA.
AC   C0PYW8;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-MAY-2009, sequence version 1.
DT   03-AUG-2022, entry version 60.
DE   RecName: Full=3,4-dihydroxy-2-butanone 4-phosphate synthase {ECO:0000255|HAMAP-Rule:MF_00180};
DE            Short=DHBP synthase {ECO:0000255|HAMAP-Rule:MF_00180};
DE            EC=4.1.99.12 {ECO:0000255|HAMAP-Rule:MF_00180};
GN   Name=ribB {ECO:0000255|HAMAP-Rule:MF_00180}; OrderedLocusNames=SPC_3271;
OS   Salmonella paratyphi C (strain RKS4594).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=476213;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RKS4594;
RX   PubMed=19229335; DOI=10.1371/journal.pone.0004510;
RA   Liu W.-Q., Feng Y., Wang Y., Zou Q.-H., Chen F., Guo J.-T., Peng Y.-H.,
RA   Jin Y., Li Y.-G., Hu S.-N., Johnston R.N., Liu G.-R., Liu S.-L.;
RT   "Salmonella paratyphi C: genetic divergence from Salmonella choleraesuis
RT   and pathogenic convergence with Salmonella typhi.";
RL   PLoS ONE 4:E4510-E4510(2009).
CC   -!- FUNCTION: Catalyzes the conversion of D-ribulose 5-phosphate to formate
CC       and 3,4-dihydroxy-2-butanone 4-phosphate. {ECO:0000255|HAMAP-
CC       Rule:MF_00180}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=D-ribulose 5-phosphate = (2S)-2-hydroxy-3-oxobutyl phosphate +
CC         formate + H(+); Xref=Rhea:RHEA:18457, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:15740, ChEBI:CHEBI:58121, ChEBI:CHEBI:58830;
CC         EC=4.1.99.12; Evidence={ECO:0000255|HAMAP-Rule:MF_00180};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00180};
CC       Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00180};
CC       Note=Binds 2 divalent metal cations per subunit. Magnesium or
CC       manganese. {ECO:0000255|HAMAP-Rule:MF_00180};
CC   -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; 2-hydroxy-3-
CC       oxobutyl phosphate from D-ribulose 5-phosphate: step 1/1.
CC       {ECO:0000255|HAMAP-Rule:MF_00180}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00180}.
CC   -!- SIMILARITY: Belongs to the DHBP synthase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00180}.
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DR   EMBL; CP000857; ACN47356.1; -; Genomic_DNA.
DR   RefSeq; WP_001076978.1; NC_012125.1.
DR   AlphaFoldDB; C0PYW8; -.
DR   SMR; C0PYW8; -.
DR   EnsemblBacteria; ACN47356; ACN47356; SPC_3271.
DR   KEGG; sei:SPC_3271; -.
DR   HOGENOM; CLU_020273_3_0_6; -.
DR   OMA; DAGGLIC; -.
DR   UniPathway; UPA00275; UER00399.
DR   Proteomes; UP000001599; Chromosome.
DR   GO; GO:0008686; F:3,4-dihydroxy-2-butanone-4-phosphate synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009231; P:riboflavin biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00180; RibB; 1.
DR   InterPro; IPR017945; DHBP_synth_RibB-like_a/b_dom.
DR   InterPro; IPR000422; DHBP_synthase_RibB.
DR   Pfam; PF00926; DHBP_synthase; 1.
DR   SUPFAM; SSF55821; SSF55821; 1.
DR   TIGRFAMs; TIGR00506; ribB; 1.
PE   3: Inferred from homology;
KW   Lyase; Magnesium; Manganese; Metal-binding; Riboflavin biosynthesis.
FT   CHAIN           1..217
FT                   /note="3,4-dihydroxy-2-butanone 4-phosphate synthase"
FT                   /id="PRO_1000193758"
FT   BINDING         37..38
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         38
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         38
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         42
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         150..154
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         153
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         174
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   SITE            136
FT                   /note="Essential for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   SITE            174
FT                   /note="Essential for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
SQ   SEQUENCE   217 AA;  23310 MW;  EE07D4C93C3F4EB7 CRC64;
     MNQTLLSSFG TPFERVELAL DALREGRGVM VLDDEDRENE GDMIFPAETM TVEQMALTIR
     HGSGIVCLCI TEDRRKQLDL PMMVENNTSA YGTGFTVTIE AAEGVTTGVS AADRVTTVRA
     AIKDGAKPSD LNRPGHVFPL RAQAGGVLTR GGHTEATIDL MTLAGFKPAG VLCELTNDDG
     TMARAPECIA FAGQHNMAVV TIEDLVAYRQ AHERKAS
 
 
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