RIBB_VIBC3
ID RIBB_VIBC3 Reviewed; 218 AA.
AC A5F159; C3M700;
DT 26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT 12-JUN-2007, sequence version 1.
DT 03-AUG-2022, entry version 81.
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};
GN OrderedLocusNames=VC0395_0181, VC395_A1083;
OS Vibrio cholerae serotype O1 (strain ATCC 39541 / Classical Ogawa 395 /
OS O395).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC Vibrio.
OX NCBI_TaxID=345073;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 39541 / Classical Ogawa 395 / O395;
RA Heidelberg J.;
RL Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases.
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 39541 / Classical Ogawa 395 / O395;
RX PubMed=19115014; DOI=10.1371/journal.pone.0004053;
RA Feng L., Reeves P.R., Lan R., Ren Y., Gao C., Zhou Z., Ren Y., Cheng J.,
RA Wang W., Wang J., Qian W., Li D., Wang L.;
RT "A recalibrated molecular clock and independent origins for the cholera
RT pandemic clones.";
RL PLoS ONE 3:E4053-E4053(2008).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP000626; ABQ18628.1; -; Genomic_DNA.
DR EMBL; CP001236; ACP11913.1; -; Genomic_DNA.
DR RefSeq; WP_001076652.1; NZ_JAACZH010000003.1.
DR AlphaFoldDB; A5F159; -.
DR SMR; A5F159; -.
DR STRING; 345073.VC395_A1083; -.
DR EnsemblBacteria; ABQ18628; ABQ18628; VC0395_0181.
DR KEGG; vco:VC0395_0181; -.
DR KEGG; vcr:VC395_A1083; -.
DR PATRIC; fig|345073.21.peg.3806; -.
DR eggNOG; COG0108; Bacteria.
DR HOGENOM; CLU_020273_3_0_6; -.
DR OMA; DAGGLIC; -.
DR UniPathway; UPA00275; UER00399.
DR Proteomes; UP000000249; Chromosome 1.
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..218
FT /note="3,4-dihydroxy-2-butanone 4-phosphate synthase"
FT /id="PRO_1000071651"
FT BINDING 38..39
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 39
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 39
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 43
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 151..155
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 154
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT BINDING 175
FT /ligand="D-ribulose 5-phosphate"
FT /ligand_id="ChEBI:CHEBI:58121"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT SITE 137
FT /note="Essential for catalytic activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
FT SITE 175
FT /note="Essential for catalytic activity"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00180"
SQ SEQUENCE 218 AA; 23553 MW; DE8469DAE46F8F30 CRC64;
MNQSSLLAEF GDPITRVENA LQALREGRGV LLLDDEDREN EGDIIYAVES LTTVQMALMI
RECSGIVCLC LTEAQADRLA LPLMVVNNNS ANQTAFTVSI EAKHGVTTGV SAQDRVTTIK
TAANPQAKPE DLARPGHVFP LRARAGGVLA RRGHTEGTVD LMQMAGLQPA GVLCELTNPD
GSMAKTPEII AFGKLHNMPV LTIEDMVQYR IQFDLKLA
