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RIBB_YERE8
ID   RIBB_YERE8              Reviewed;         217 AA.
AC   A1JQV2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 80.
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=YE3669;
OS   Yersinia enterocolitica serotype O:8 / biotype 1B (strain NCTC 13174 /
OS   8081).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Yersiniaceae; Yersinia.
OX   NCBI_TaxID=393305;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCTC 13174 / 8081;
RX   PubMed=17173484; DOI=10.1371/journal.pgen.0020206;
RA   Thomson N.R., Howard S., Wren B.W., Holden M.T.G., Crossman L.,
RA   Challis G.L., Churcher C., Mungall K., Brooks K., Chillingworth T.,
RA   Feltwell T., Abdellah Z., Hauser H., Jagels K., Maddison M., Moule S.,
RA   Sanders M., Whitehead S., Quail M.A., Dougan G., Parkhill J.,
RA   Prentice M.B.;
RT   "The complete genome sequence and comparative genome analysis of the high
RT   pathogenicity Yersinia enterocolitica strain 8081.";
RL   PLoS Genet. 2:2039-2051(2006).
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; AM286415; CAL13697.1; -; Genomic_DNA.
DR   RefSeq; WP_011817217.1; NC_008800.1.
DR   RefSeq; YP_001007825.1; NC_008800.1.
DR   AlphaFoldDB; A1JQV2; -.
DR   SMR; A1JQV2; -.
DR   STRING; 393305.YE3669; -.
DR   EnsemblBacteria; CAL13697; CAL13697; YE3669.
DR   GeneID; 67420317; -.
DR   KEGG; yen:YE3669; -.
DR   PATRIC; fig|393305.7.peg.3906; -.
DR   eggNOG; COG0108; Bacteria.
DR   HOGENOM; CLU_020273_3_0_6; -.
DR   OMA; DAGGLIC; -.
DR   UniPathway; UPA00275; UER00399.
DR   Proteomes; UP000000642; 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_1000040639"
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;  23454 MW;  ECDFF6ED49BC01FD CRC64;
     MNQTLLSDFG TPVERVERAI DALRNGRGVM VLDDESRENE GDMVFAAEAM TVEQMALTIR
     HGSGIVCLCI TDERRQQLDL PMMVANNSSQ FQTAFTVTIE AAKGVTTGVS AADRLTTIRA
     AIADNAKPTD LNRPGHVFPL RGQPGGVLSR RGHTEASIDL ATLAGYKPAG VLCELTNDDG
     SMAHAPEVIE FAKLHDMPVV TIDDLAEYRQ SQEKKAS
 
 
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