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RIBB_PSEPK
ID   RIBB_PSEPK              Reviewed;         216 AA.
AC   Q88QG4;
DT   16-JAN-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 98.
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=PP_0530;
OS   Pseudomonas putida (strain ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950
OS   / KT2440).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=160488;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 47054 / DSM 6125 / CFBP 8728 / NCIMB 11950 / KT2440;
RX   PubMed=12534463; DOI=10.1046/j.1462-2920.2002.00366.x;
RA   Nelson K.E., Weinel C., Paulsen I.T., Dodson R.J., Hilbert H.,
RA   Martins dos Santos V.A.P., Fouts D.E., Gill S.R., Pop M., Holmes M.,
RA   Brinkac L.M., Beanan M.J., DeBoy R.T., Daugherty S.C., Kolonay J.F.,
RA   Madupu R., Nelson W.C., White O., Peterson J.D., Khouri H.M., Hance I.,
RA   Chris Lee P., Holtzapple E.K., Scanlan D., Tran K., Moazzez A.,
RA   Utterback T.R., Rizzo M., Lee K., Kosack D., Moestl D., Wedler H.,
RA   Lauber J., Stjepandic D., Hoheisel J., Straetz M., Heim S., Kiewitz C.,
RA   Eisen J.A., Timmis K.N., Duesterhoeft A., Tuemmler B., Fraser C.M.;
RT   "Complete genome sequence and comparative analysis of the metabolically
RT   versatile Pseudomonas putida KT2440.";
RL   Environ. Microbiol. 4:799-808(2002).
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; AE015451; AAN66157.1; -; Genomic_DNA.
DR   RefSeq; NP_742693.1; NC_002947.4.
DR   RefSeq; WP_010951811.1; NC_002947.4.
DR   AlphaFoldDB; Q88QG4; -.
DR   SMR; Q88QG4; -.
DR   STRING; 160488.PP_0530; -.
DR   EnsemblBacteria; AAN66157; AAN66157; PP_0530.
DR   KEGG; ppu:PP_0530; -.
DR   PATRIC; fig|160488.4.peg.566; -.
DR   eggNOG; COG0108; Bacteria.
DR   HOGENOM; CLU_020273_3_0_6; -.
DR   OMA; DAGGLIC; -.
DR   PhylomeDB; Q88QG4; -.
DR   BioCyc; PPUT160488:G1G01-579-MON; -.
DR   UniPathway; UPA00275; UER00399.
DR   Proteomes; UP000000556; 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; Reference proteome;
KW   Riboflavin biosynthesis.
FT   CHAIN           1..216
FT                   /note="3,4-dihydroxy-2-butanone 4-phosphate synthase"
FT                   /id="PRO_0000151807"
FT   BINDING         33..34
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         34
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         34
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         38
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         146..150
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         149
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   BINDING         170
FT                   /ligand="D-ribulose 5-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58121"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   SITE            132
FT                   /note="Essential for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT   SITE            170
FT                   /note="Essential for catalytic activity"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
SQ   SEQUENCE   216 AA;  23407 MW;  B0A01C78431B7046 CRC64;
     MFTQHHAQFP NVSAAIAAFQ AGRPVLLLDD DDREDEADII AAAENITLQT MAMMIRDCSG
     IVCLCLDEAT VDELQLAPMV QNNQARHGTG FTVTIEAAEG ITTGVSAQDR ITTIDAALRS
     SAEQRHIVSP GHVFPLRARN GGVLTRRGHT EGSVDLARLA GLRPAAVLCE LMNPDGSMAR
     GEQVAVYARQ YNLPVLTIEE LARYREAMLE REAEPA
 
 
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