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RISB_CHRVO
ID   RISB_CHRVO              Reviewed;         155 AA.
AC   Q7NVF3;
DT   07-JUN-2004, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   03-AUG-2022, entry version 109.
DE   RecName: Full=6,7-dimethyl-8-ribityllumazine synthase {ECO:0000255|HAMAP-Rule:MF_00178};
DE            Short=DMRL synthase {ECO:0000255|HAMAP-Rule:MF_00178};
DE            Short=LS {ECO:0000255|HAMAP-Rule:MF_00178};
DE            Short=Lumazine synthase {ECO:0000255|HAMAP-Rule:MF_00178};
DE            EC=2.5.1.78 {ECO:0000255|HAMAP-Rule:MF_00178};
GN   Name=ribH {ECO:0000255|HAMAP-Rule:MF_00178}; OrderedLocusNames=CV_2390;
OS   Chromobacterium violaceum (strain ATCC 12472 / DSM 30191 / JCM 1249 / NBRC
OS   12614 / NCIMB 9131 / NCTC 9757).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Neisseriales;
OC   Chromobacteriaceae; Chromobacterium.
OX   NCBI_TaxID=243365;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 12472 / DSM 30191 / JCM 1249 / NBRC 12614 / NCIMB 9131 / NCTC
RC   9757;
RX   PubMed=14500782; DOI=10.1073/pnas.1832124100;
RA   Vasconcelos A.T.R., de Almeida D.F., Hungria M., Guimaraes C.T.,
RA   Antonio R.V., Almeida F.C., de Almeida L.G.P., de Almeida R.,
RA   Alves-Gomes J.A., Andrade E.M., Araripe J., de Araujo M.F.F.,
RA   Astolfi-Filho S., Azevedo V., Baptista A.J., Bataus L.A.M., Batista J.S.,
RA   Belo A., van den Berg C., Bogo M., Bonatto S., Bordignon J., Brigido M.M.,
RA   Brito C.A., Brocchi M., Burity H.A., Camargo A.A., Cardoso D.D.P.,
RA   Carneiro N.P., Carraro D.M., Carvalho C.M.B., Cascardo J.C.M., Cavada B.S.,
RA   Chueire L.M.O., Creczynski-Pasa T.B., Cunha-Junior N.C., Fagundes N.,
RA   Falcao C.L., Fantinatti F., Farias I.P., Felipe M.S.S., Ferrari L.P.,
RA   Ferro J.A., Ferro M.I.T., Franco G.R., Freitas N.S.A., Furlan L.R.,
RA   Gazzinelli R.T., Gomes E.A., Goncalves P.R., Grangeiro T.B.,
RA   Grattapaglia D., Grisard E.C., Hanna E.S., Jardim S.N., Laurino J.,
RA   Leoi L.C.T., Lima L.F.A., Loureiro M.F., Lyra M.C.C.P., Madeira H.M.F.,
RA   Manfio G.P., Maranhao A.Q., Martins W.S., di Mauro S.M.Z.,
RA   de Medeiros S.R.B., Meissner R.V., Moreira M.A.M., Nascimento F.F.,
RA   Nicolas M.F., Oliveira J.G., Oliveira S.C., Paixao R.F.C., Parente J.A.,
RA   Pedrosa F.O., Pena S.D.J., Pereira J.O., Pereira M., Pinto L.S.R.C.,
RA   Pinto L.S., Porto J.I.R., Potrich D.P., Ramalho-Neto C.E., Reis A.M.M.,
RA   Rigo L.U., Rondinelli E., Santos E.B.P., Santos F.R., Schneider M.P.C.,
RA   Seuanez H.N., Silva A.M.R., da Silva A.L.C., Silva D.W., Silva R.,
RA   Simoes I.C., Simon D., Soares C.M.A., Soares R.B.A., Souza E.M.,
RA   Souza K.R.L., Souza R.C., Steffens M.B.R., Steindel M., Teixeira S.R.,
RA   Urmenyi T., Vettore A., Wassem R., Zaha A., Simpson A.J.G.;
RT   "The complete genome sequence of Chromobacterium violaceum reveals
RT   remarkable and exploitable bacterial adaptability.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:11660-11665(2003).
CC   -!- FUNCTION: Catalyzes the formation of 6,7-dimethyl-8-ribityllumazine by
CC       condensation of 5-amino-6-(D-ribitylamino)uracil with 3,4-dihydroxy-2-
CC       butanone 4-phosphate. This is the penultimate step in the biosynthesis
CC       of riboflavin. {ECO:0000255|HAMAP-Rule:MF_00178}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2S)-2-hydroxy-3-oxobutyl phosphate + 5-amino-6-(D-
CC         ribitylamino)uracil = 6,7-dimethyl-8-(1-D-ribityl)lumazine + H(+) + 2
CC         H2O + phosphate; Xref=Rhea:RHEA:26152, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:15934, ChEBI:CHEBI:43474,
CC         ChEBI:CHEBI:58201, ChEBI:CHEBI:58830; EC=2.5.1.78;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00178};
CC   -!- PATHWAY: Cofactor biosynthesis; riboflavin biosynthesis; riboflavin
CC       from 2-hydroxy-3-oxobutyl phosphate and 5-amino-6-(D-
CC       ribitylamino)uracil: step 1/2. {ECO:0000255|HAMAP-Rule:MF_00178}.
CC   -!- SIMILARITY: Belongs to the DMRL synthase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00178}.
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DR   EMBL; AE016825; AAQ60062.1; -; Genomic_DNA.
DR   RefSeq; WP_011135937.1; NC_005085.1.
DR   AlphaFoldDB; Q7NVF3; -.
DR   SMR; Q7NVF3; -.
DR   STRING; 243365.CV_2390; -.
DR   EnsemblBacteria; AAQ60062; AAQ60062; CV_2390.
DR   KEGG; cvi:CV_2390; -.
DR   eggNOG; COG0054; Bacteria.
DR   HOGENOM; CLU_089358_1_2_4; -.
DR   OMA; CQGVTQG; -.
DR   OrthoDB; 1680292at2; -.
DR   UniPathway; UPA00275; UER00404.
DR   Proteomes; UP000001424; Chromosome.
DR   GO; GO:0009349; C:riboflavin synthase complex; IEA:InterPro.
DR   GO; GO:0000906; F:6,7-dimethyl-8-ribityllumazine synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0009231; P:riboflavin biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd09209; Lumazine_synthase-I; 1.
DR   Gene3D; 3.40.50.960; -; 1.
DR   HAMAP; MF_00178; Lumazine_synth; 1.
DR   InterPro; IPR034964; LS.
DR   InterPro; IPR002180; LS/RS.
DR   InterPro; IPR036467; LS/RS_sf.
DR   PANTHER; PTHR21058; PTHR21058; 1.
DR   Pfam; PF00885; DMRL_synthase; 1.
DR   SUPFAM; SSF52121; SSF52121; 1.
DR   TIGRFAMs; TIGR00114; lumazine-synth; 1.
PE   3: Inferred from homology;
KW   Reference proteome; Riboflavin biosynthesis; Transferase.
FT   CHAIN           1..155
FT                   /note="6,7-dimethyl-8-ribityllumazine synthase"
FT                   /id="PRO_0000134742"
FT   ACT_SITE        92
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT   BINDING         26
FT                   /ligand="5-amino-6-(D-ribitylamino)uracil"
FT                   /ligand_id="ChEBI:CHEBI:15934"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT   BINDING         60..62
FT                   /ligand="5-amino-6-(D-ribitylamino)uracil"
FT                   /ligand_id="ChEBI:CHEBI:15934"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT   BINDING         84..86
FT                   /ligand="5-amino-6-(D-ribitylamino)uracil"
FT                   /ligand_id="ChEBI:CHEBI:15934"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT   BINDING         89..90
FT                   /ligand="(2S)-2-hydroxy-3-oxobutyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58830"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT   BINDING         117
FT                   /ligand="5-amino-6-(D-ribitylamino)uracil"
FT                   /ligand_id="ChEBI:CHEBI:15934"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT   BINDING         131
FT                   /ligand="(2S)-2-hydroxy-3-oxobutyl phosphate"
FT                   /ligand_id="ChEBI:CHEBI:58830"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
SQ   SEQUENCE   155 AA;  16331 MW;  C13CEE1D947D1D2C CRC64;
     MLDAIQCIEP NFSGKGLKIG IAMARFNTPV CHGLRDACLA ELEKLGVAAG DITLATVPGA
     LEVPLVLQTM AKSGRFDALV ALGAVIRGET YHFELVSNES GAGVTRVGLD FDIPVANAIL
     TTENDEQAEV RMLEKGGDAA RVAVEMANLH KTLRG
 
 
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