ID   RIBL_NATMM              Reviewed;         148 AA.
AC   D3SYU6;
DT   05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT   20-APR-2010, sequence version 1.
DT   03-AUG-2022, entry version 55.
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=Nmag_0621;
OS   Natrialba magadii (strain ATCC 43099 / DSM 3394 / CCM 3739 / CIP 104546 /
OS   IAM 13178 / JCM 8861 / NBRC 102185 / NCIMB 2190 / MS3) (Natronobacterium
OS   magadii).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Natrialbales;
OC   Natrialbaceae; Natrialba.
OX   NCBI_TaxID=547559;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 43099 / DSM 3394 / CCM 3739 / CIP 104546 / IAM 13178 / JCM 8861
RC   / NBRC 102185 / NCIMB 2190 / MS3;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Cheng J.-F., Bruce D., Goodwin L.,
RA   Pitluck S., Davenport K., Saunders E., Detter J.C., Han C., Tapia R.,
RA   Land M., Hauser L., Kyrpides N., Mikhailova N., De Castro R.E.,
RA   Maupin-Furlow J.A., Woyke T.;
RT   "Complete sequence of chromosome of Natrialba magadii ATCC 43099.";
RL   Submitted (FEB-2010) 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; CP001932; ADD04207.1; -; Genomic_DNA.
DR   RefSeq; WP_004216359.1; NZ_AOHS01000051.1.
DR   AlphaFoldDB; D3SYU6; -.
DR   SMR; D3SYU6; -.
DR   STRING; 547559.Nmag_0621; -.
DR   EnsemblBacteria; ADD04207; ADD04207; Nmag_0621.
DR   GeneID; 8823448; -.
DR   KEGG; nmg:Nmag_0621; -.
DR   eggNOG; arCOG01222; Archaea.
DR   HOGENOM; CLU_034585_2_1_2; -.
DR   OMA; FAKKHAD; -.
DR   OrthoDB; 79845at2157; -.
DR   UniPathway; UPA00277; UER00407.
DR   Proteomes; UP000001879; 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_0000406276"
FT   BINDING         14..15
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         19..22
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
FT   BINDING         97
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02115"
SQ   SEQUENCE   148 AA;  16707 MW;  90F6E1FC3C123B24 CRC64;
     MTNDNPRTVI AQGTFDLLHP GHVHYLEEAA AMGDELYVIV ARKSNVDHKK APICSAAQRR
     DVVDALEVVD EAILGHEEDI FVPIERIDPD VIALGHDQHH DADAIEDELE RRGIDCVVDR
     ASGRESTRED EVLSTRLIID RILERRDR