ID   RIBL_METP4              Reviewed;         148 AA.
AC   E1RHM5;
DT   05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT   30-NOV-2010, sequence version 1.
DT   03-AUG-2022, entry version 53.
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=Mpet_0560;
OS   Methanolacinia petrolearia (strain DSM 11571 / OCM 486 / SEBR 4847)
OS   (Methanoplanus petrolearius).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanomicrobiales; Methanomicrobiaceae; Methanolacinia.
OX   NCBI_TaxID=679926;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 11571 / OCM 486 / SEBR 4847;
RX   PubMed=21304750; DOI=10.4056/sigs.1183143;
RA   Brambilla E., Djao O.D., Daligault H., Lapidus A., Lucas S., Hammon N.,
RA   Nolan M., Tice H., Cheng J.F., Han C., Tapia R., Goodwin L., Pitluck S.,
RA   Liolios K., Ivanova N., Mavromatis K., Mikhailova N., Pati A., Chen A.,
RA   Palaniappan K., Land M., Hauser L., Chang Y.J., Jeffries C.D., Rohde M.,
RA   Spring S., Sikorski J., Goker M., Woyke T., Bristow J., Eisen J.A.,
RA   Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.;
RT   "Complete genome sequence of Methanoplanus petrolearius type strain (SEBR
RT   4847).";
RL   Stand. Genomic Sci. 3:203-211(2010).
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; CP002117; ADN35334.1; -; Genomic_DNA.
DR   RefSeq; WP_013328512.1; NC_014507.1.
DR   AlphaFoldDB; E1RHM5; -.
DR   SMR; E1RHM5; -.
DR   STRING; 679926.Mpet_0560; -.
DR   EnsemblBacteria; ADN35334; ADN35334; Mpet_0560.
DR   GeneID; 9743008; -.
DR   KEGG; mpi:Mpet_0560; -.
DR   eggNOG; arCOG01222; Archaea.
DR   HOGENOM; CLU_034585_2_1_2; -.
DR   OMA; FAKKHAD; -.
DR   OrthoDB; 79845at2157; -.
DR   UniPathway; UPA00277; UER00407.
DR   Proteomes; UP000006565; 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; Reference proteome; Transferase.
FT   CHAIN           1..148
FT                   /note="FAD synthase"
FT                   /id="PRO_0000406264"
FT   BINDING         9..10
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         14..17
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         92
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         119
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
SQ   SEQUENCE   148 AA;  17131 MW;  20A13DD33A460572 CRC64;
     MKRIVATGTF DILHPGHIYY LEESRKLGDE LHVIIARDEN VRHKPKPVIP EQQRLRMVQS
     LKPVDYARLG STTDIFEPIR EIQPDIITLG FNQFFNEEKL KCDLEENGIS AEVVRIEGYS
     GEGFCSSRNI MKQILIRRCK ELQDDSTD