RISB_RENSM
ID RISB_RENSM Reviewed; 159 AA.
AC A9WR65;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 05-FEB-2008, sequence version 1.
DT 03-AUG-2022, entry version 79.
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};
GN OrderedLocusNames=RSal33209_2344;
OS Renibacterium salmoninarum (strain ATCC 33209 / DSM 20767 / JCM 11484 /
OS NBRC 15589 / NCIMB 2235).
OC Bacteria; Actinobacteria; Micrococcales; Micrococcaceae; Renibacterium.
OX NCBI_TaxID=288705;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33209 / DSM 20767 / JCM 11484 / NBRC 15589 / NCIMB 2235;
RX PubMed=18723615; DOI=10.1128/jb.00721-08;
RA Wiens G.D., Rockey D.D., Wu Z., Chang J., Levy R., Crane S., Chen D.S.,
RA Capri G.R., Burnett J.R., Sudheesh P.S., Schipma M.J., Burd H.,
RA Bhattacharyya A., Rhodes L.D., Kaul R., Strom M.S.;
RT "Genome sequence of the fish pathogen Renibacterium salmoninarum suggests
RT reductive evolution away from an environmental Arthrobacter ancestor.";
RL J. Bacteriol. 190:6970-6982(2008).
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}.
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; CP000910; ABY24074.1; -; Genomic_DNA.
DR RefSeq; WP_012245737.1; NC_010168.1.
DR AlphaFoldDB; A9WR65; -.
DR SMR; A9WR65; -.
DR STRING; 288705.RSal33209_2344; -.
DR EnsemblBacteria; ABY24074; ABY24074; RSal33209_2344.
DR KEGG; rsa:RSal33209_2344; -.
DR eggNOG; COG0054; Bacteria.
DR HOGENOM; CLU_089358_1_1_11; -.
DR OMA; CQGVTQG; -.
DR OrthoDB; 1680292at2; -.
DR UniPathway; UPA00275; UER00404.
DR Proteomes; UP000002007; 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..159
FT /note="6,7-dimethyl-8-ribityllumazine synthase"
FT /id="PRO_1000077245"
FT ACT_SITE 88
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 58..60
FT /ligand="5-amino-6-(D-ribitylamino)uracil"
FT /ligand_id="ChEBI:CHEBI:15934"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT BINDING 80..82
FT /ligand="5-amino-6-(D-ribitylamino)uracil"
FT /ligand_id="ChEBI:CHEBI:15934"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT BINDING 85..86
FT /ligand="(2S)-2-hydroxy-3-oxobutyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58830"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT BINDING 113
FT /ligand="5-amino-6-(D-ribitylamino)uracil"
FT /ligand_id="ChEBI:CHEBI:15934"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
FT BINDING 127
FT /ligand="(2S)-2-hydroxy-3-oxobutyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58830"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00178"
SQ SEQUENCE 159 AA; 16339 MW; B9AE0B824EAFEDD3 CRC64;
MSGAGAPVSP QLNAKGLELV IIAASWHEKV MNGLLDGALR AARDAGIEEP RIVRVPGSFE
LPVAAARLAP DYDAVVALGV VIRGGTPHFE YVCQAATSGL TEVSVRTGVP VGFGLLTCDN
DQQALDRAGL PAAPGFAGSK EDKGYEATSA ALETALTLR
