ID   RIBL_METVM              Reviewed;         152 AA.
AC   C9RF94;
DT   05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT   24-NOV-2009, sequence version 1.
DT   03-AUG-2022, entry version 58.
DE   RecName: Full=FAD synthase {ECO:0000255|HAMAP-Rule:MF_02115};
DE            EC=2.7.7.2 {ECO:0000255|HAMAP-Rule:MF_02115};
DE   AltName: Full=FMN adenylyltransferase {ECO:0000255|HAMAP-Rule:MF_02115};
DE   AltName: Full=Flavin adenine dinucleotide synthase {ECO:0000255|HAMAP-Rule:MF_02115};
GN   Name=ribL {ECO:0000255|HAMAP-Rule:MF_02115}; OrderedLocusNames=Metvu_0383;
OS   Methanocaldococcus vulcanius (strain ATCC 700851 / DSM 12094 / M7)
OS   (Methanococcus vulcanius).
OC   Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC   Methanocaldococcaceae; Methanocaldococcus.
OX   NCBI_TaxID=579137;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700851 / DSM 12094 / M7;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Lcollab F.I., Brettin T., Detter J.C.,
RA   Han C., Tapia R., Kuske C.R., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Ovchinikova G., Sieprawska-Lupa M., Whitman W.B., Woyke T.;
RT   "Complete sequence of chromosome of Methanocaldococcus vulcanius M7.";
RL   Submitted (OCT-2009) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the transfer of the AMP portion of ATP to flavin
CC       mononucleotide (FMN) to produce flavin adenine dinucleotide (FAD)
CC       coenzyme. {ECO:0000255|HAMAP-Rule:MF_02115}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + FMN + H(+) = diphosphate + FAD; Xref=Rhea:RHEA:17237,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:57692, ChEBI:CHEBI:58210; EC=2.7.7.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_02115};
CC   -!- COFACTOR:
CC       Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_02115};
CC   -!- PATHWAY: Cofactor biosynthesis; FAD biosynthesis; FAD from FMN: step
CC       1/1. {ECO:0000255|HAMAP-Rule:MF_02115}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_02115}.
CC   -!- SIMILARITY: Belongs to the archaeal FAD synthase family.
CC       {ECO:0000255|HAMAP-Rule:MF_02115}.
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DR   EMBL; CP001787; ACX72246.1; -; Genomic_DNA.
DR   RefSeq; WP_012819790.1; NC_013407.1.
DR   AlphaFoldDB; C9RF94; -.
DR   SMR; C9RF94; -.
DR   STRING; 579137.Metvu_0383; -.
DR   EnsemblBacteria; ACX72246; ACX72246; Metvu_0383.
DR   GeneID; 8512715; -.
DR   KEGG; mvu:Metvu_0383; -.
DR   eggNOG; arCOG01222; Archaea.
DR   HOGENOM; CLU_034585_2_1_2; -.
DR   OMA; FAKKHAD; -.
DR   OrthoDB; 79845at2157; -.
DR   UniPathway; UPA00277; UER00407.
DR   Proteomes; UP000002063; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003919; F:FMN adenylyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006747; P:FAD biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0046444; P:FMN metabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_02115; FAD_synth_arch; 1.
DR   InterPro; IPR004821; Cyt_trans-like.
DR   InterPro; IPR024902; FAD_synth_RibL.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   Pfam; PF01467; CTP_transf_like; 1.
DR   TIGRFAMs; TIGR00125; cyt_tran_rel; 1.
PE   3: Inferred from homology;
KW   ATP-binding; FAD; Flavoprotein; FMN; Nucleotide-binding;
KW   Nucleotidyltransferase; Transferase.
FT   CHAIN           1..152
FT                   /note="FAD synthase"
FT                   /id="PRO_0000406250"
FT   BINDING         16..17
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         21..24
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         101
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         129
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
SQ   SEQUENCE   152 AA;  17740 MW;  176D2B1D67B0B5E0 CRC64;
     MEKDRNVKKR VITAGTFDIL HPGHYEILKF AKSLGDELIV IIARDKTVER LKGRKPIIPE
     NQRREMVEAL KPVDKAILGS LNNKLEPILK LKPDIIVLGP DQMTFDEETL KKELEKHNLH
     PKIVRFKNYK KCPFHSSFDI VKEIVKRYCN KE