ID F9ZB89_ODOSD Unreviewed; 153 AA.
AC F9ZB89;
DT 19-OCT-2011, integrated into UniProtKB/TrEMBL.
DT 19-OCT-2011, sequence version 1.
DT 27-MAR-2024, entry version 71.
DE RecName: Full=6,7-dimethyl-8-ribityllumazine synthase {ECO:0000256|ARBA:ARBA00012664, ECO:0000256|HAMAP-Rule:MF_00178};
DE Short=DMRL synthase {ECO:0000256|HAMAP-Rule:MF_00178};
DE Short=LS {ECO:0000256|HAMAP-Rule:MF_00178};
DE Short=Lumazine synthase {ECO:0000256|HAMAP-Rule:MF_00178};
DE EC=2.5.1.78 {ECO:0000256|ARBA:ARBA00012664, ECO:0000256|HAMAP-Rule:MF_00178};
GN Name=ribH {ECO:0000256|HAMAP-Rule:MF_00178};
GN OrderedLocusNames=Odosp_3473 {ECO:0000313|EMBL:ADY34424.1};
OS Odoribacter splanchnicus (strain ATCC 29572 / DSM 20712 / CIP 104287 / JCM
OS 15291 / NCTC 10825 / 1651/6) (Bacteroides splanchnicus).
OC Bacteria; Bacteroidota; Bacteroidia; Bacteroidales; Odoribacteraceae;
OC Odoribacter.
OX NCBI_TaxID=709991 {ECO:0000313|EMBL:ADY34424.1, ECO:0000313|Proteomes:UP000006657};
RN [1] {ECO:0000313|EMBL:ADY34424.1, ECO:0000313|Proteomes:UP000006657}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29572 / DSM 20712 / JCM 15291 / NCTC 10825 / 1651/6
RC {ECO:0000313|Proteomes:UP000006657};
RX PubMed=21677857; DOI=10.4056/sigs.1714269;
RG US DOE Joint Genome Institute (JGI-PGF);
RA Goker M., Gronow S., Zeytun A., Nolan M., Lucas S., Lapidus A., Hammon N.,
RA Deshpande S., Cheng J.F., Pitluck S., Liolios K., Pagani I., Ivanova N.,
RA Mavromatis K., Ovchinikova G., Pati A., Tapia R., Han C., Goodwin L.,
RA Chen A., Palaniappan K., Land M., Hauser L., Jeffries C.D., Brambilla E.M.,
RA Rohde M., Detter J.C., Woyke T., Bristow J., Markowitz V., Hugenholtz P.,
RA Eisen J.A., Kyrpides N.C., Klenk H.P.;
RT "Complete genome sequence of Odoribacter splanchnicus type strain
RT (1651/6).";
RL Stand. Genomic Sci. 4:200-209(2011).
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:0000256|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:0000256|ARBA:ARBA00001697, ECO:0000256|HAMAP-
CC 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:0000256|ARBA:ARBA00004917,
CC ECO:0000256|HAMAP-Rule:MF_00178}.
CC -!- SIMILARITY: Belongs to the DMRL synthase family.
CC {ECO:0000256|ARBA:ARBA00007424, ECO:0000256|HAMAP-Rule:MF_00178}.
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DR EMBL; CP002544; ADY34424.1; -; Genomic_DNA.
DR RefSeq; WP_013613611.1; NZ_CP086000.1.
DR AlphaFoldDB; F9ZB89; -.
DR STRING; 709991.Odosp_3473; -.
DR PaxDb; 709991-Odosp_3473; -.
DR GeneID; 69854116; -.
DR KEGG; osp:Odosp_3473; -.
DR eggNOG; COG0054; Bacteria.
DR HOGENOM; CLU_089358_1_1_10; -.
DR OrthoDB; 9809709at2; -.
DR BioCyc; OSPL709991:G1GRN-3547-MONOMER; -.
DR UniPathway; UPA00275; UER00404.
DR Proteomes; UP000006657; 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; Lumazine/riboflavin synthase; 1.
DR HAMAP; MF_00178; Lumazine_synth; 1.
DR InterPro; IPR034964; LS.
DR InterPro; IPR002180; LS/RS.
DR InterPro; IPR036467; LS/RS_sf.
DR NCBIfam; TIGR00114; lumazine-synth; 1.
DR PANTHER; PTHR21058:SF0; 6,7-DIMETHYL-8-RIBITYLLUMAZINE SYNTHASE; 1.
DR PANTHER; PTHR21058; 6,7-DIMETHYL-8-RIBITYLLUMAZINE SYNTHASE DMRL SYNTHASE LUMAZINE SYNTHASE; 1.
DR Pfam; PF00885; DMRL_synthase; 1.
DR SUPFAM; SSF52121; Lumazine synthase; 1.
PE 3: Inferred from homology;
KW Reference proteome {ECO:0000313|Proteomes:UP000006657};
KW Riboflavin biosynthesis {ECO:0000256|ARBA:ARBA00022619, ECO:0000256|HAMAP-
KW Rule:MF_00178};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00178}.
FT ACT_SITE 88
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00178"
FT BINDING 22
FT /ligand="5-amino-6-(D-ribitylamino)uracil"
FT /ligand_id="ChEBI:CHEBI:15934"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00178"
FT BINDING 56..58
FT /ligand="5-amino-6-(D-ribitylamino)uracil"
FT /ligand_id="ChEBI:CHEBI:15934"
FT /evidence="ECO:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00178"
FT BINDING 113
FT /ligand="5-amino-6-(D-ribitylamino)uracil"
FT /ligand_id="ChEBI:CHEBI:15934"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00178"
FT BINDING 127
FT /ligand="(2S)-2-hydroxy-3-oxobutyl phosphate"
FT /ligand_id="ChEBI:CHEBI:58830"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00178"
SQ SEQUENCE 153 AA; 16163 MW; 4449AA631D1DAFAB CRC64;
MNLLEGKLLA EGQRIGVVAA RFNEFITAKL VGGAKDAFVR HGGDENKLDL AWVPGAFEIP
LVAKKMVESG KYDAVVCLGA VIRGATPHFD MVANEATKGV AHVGLQTGVP VIFGILTTDS
IEQAVERAGT KAGNKGFDAM TTAIEMINLL KQI
//
