RIBB_PELPD
ID RIBB_PELPD Reviewed; 234 AA.
AC A1AKS6;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 1.
DT 03-AUG-2022, entry version 77.
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=Ppro_0312;
OS Pelobacter propionicus (strain DSM 2379 / NBRC 103807 / OttBd1).
OC Bacteria; Proteobacteria; Deltaproteobacteria; Desulfuromonadales;
OC Desulfuromonadaceae; Pelobacter.
OX NCBI_TaxID=338966;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 2379 / NBRC 103807 / OttBd1;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Saunders E., Brettin T., Bruce D., Han C., Tapia R., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Lovley D.,
RA Richardson P.;
RT "Complete sequence of chromosome of Pelobacter propionicus DSM 2379.";
RL Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
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; CP000482; ABK97946.1; -; Genomic_DNA.
DR RefSeq; WP_011734260.1; NC_008609.1.
DR AlphaFoldDB; A1AKS6; -.
DR SMR; A1AKS6; -.
DR STRING; 338966.Ppro_0312; -.
DR EnsemblBacteria; ABK97946; ABK97946; Ppro_0312.
DR KEGG; ppd:Ppro_0312; -.
DR eggNOG; COG0108; Bacteria.
DR HOGENOM; CLU_020273_3_0_7; -.
DR OMA; DAGGLIC; -.
DR OrthoDB; 900513at2; -.
DR UniPathway; UPA00275; UER00399.
DR Proteomes; UP000006732; 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..234
FT /note="3,4-dihydroxy-2-butanone 4-phosphate synthase"
FT /id="PRO_1000040618"
FT BINDING 39..40
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 40
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 40
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 44
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 152..156
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 155
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 176
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT SITE 138
FT /note="Essential for catalytic activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT SITE 176
FT /note="Essential for catalytic activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
SQ SEQUENCE 234 AA; 25286 MW; 1F2A5788B16C5CED CRC64;
MNQSYFPHHQ SDLSLQRVEA ALDALRAGQG VLVTDDEQRE NEGDLIFAAQ SLTREQVAML
IRECSGIVCL CLTDEAVRRL DLPLMVSDNS SRYQTAFTVS IEAAEGVTTG VSAADRLTTI
RAAIADDAGP LCLSRPGHVF PLRARPGGVL ERRGHTEATV DLMRLAGLKP CGVLCELTNP
DGSMARMPEI VAFSRKHGFP LITVEELVQY RIVREQPAAL LQAEAESAGA LCSA
