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RIBF_BUCAI
ID   RIBF_BUCAI              Reviewed;         313 AA.
AC   P57250;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Bifunctional riboflavin kinase/FMN adenylyltransferase {ECO:0000250|UniProtKB:Q59263};
DE   AltName: Full=Riboflavin biosynthesis protein RibF {ECO:0000250|UniProtKB:Q59263};
DE   Includes:
DE     RecName: Full=Riboflavin kinase {ECO:0000250|UniProtKB:Q59263};
DE              EC=2.7.1.26 {ECO:0000250|UniProtKB:Q59263};
DE     AltName: Full=Flavokinase {ECO:0000250|UniProtKB:Q59263};
DE   Includes:
DE     RecName: Full=FMN adenylyltransferase {ECO:0000250|UniProtKB:Q59263};
DE              EC=2.7.7.2 {ECO:0000250|UniProtKB:Q59263};
DE     AltName: Full=FAD pyrophosphorylase {ECO:0000250|UniProtKB:Q59263};
DE     AltName: Full=FAD synthase {ECO:0000250|UniProtKB:Q59263};
GN   Name=ribF; OrderedLocusNames=BU150;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- FUNCTION: Catalyzes the phosphorylation of riboflavin to FMN followed
CC       by the adenylation of FMN to FAD. {ECO:0000250|UniProtKB:Q59263}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + riboflavin = ADP + FMN + H(+); Xref=Rhea:RHEA:14357,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:30616, ChEBI:CHEBI:57986,
CC         ChEBI:CHEBI:58210, ChEBI:CHEBI:456216; EC=2.7.1.26;
CC         Evidence={ECO:0000250|UniProtKB:Q59263};
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:0000250|UniProtKB:Q59263};
CC   -!- PATHWAY: Cofactor biosynthesis; FAD biosynthesis; FAD from FMN: step
CC       1/1. {ECO:0000250|UniProtKB:Q59263}.
CC   -!- PATHWAY: Cofactor biosynthesis; FMN biosynthesis; FMN from riboflavin
CC       (ATP route): step 1/1. {ECO:0000250|UniProtKB:Q59263}.
CC   -!- SIMILARITY: Belongs to the RibF family. {ECO:0000305}.
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DR   EMBL; BA000003; BAB12868.1; -; Genomic_DNA.
DR   RefSeq; NP_239982.1; NC_002528.1.
DR   RefSeq; WP_009874106.1; NC_002528.1.
DR   AlphaFoldDB; P57250; -.
DR   SMR; P57250; -.
DR   STRING; 107806.10038833; -.
DR   PRIDE; P57250; -.
DR   EnsemblBacteria; BAB12868; BAB12868; BAB12868.
DR   KEGG; buc:BU150; -.
DR   PATRIC; fig|107806.10.peg.159; -.
DR   eggNOG; COG0196; Bacteria.
DR   HOGENOM; CLU_048437_0_2_6; -.
DR   OMA; HRGHQAI; -.
DR   UniPathway; UPA00276; UER00406.
DR   UniPathway; UPA00277; UER00407.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0003919; F:FMN adenylyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0008531; F:riboflavin kinase activity; IEA:UniProtKB-EC.
DR   GO; GO:0006747; P:FAD biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0009398; P:FMN biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0009231; P:riboflavin biosynthetic process; IEA:InterPro.
DR   CDD; cd02064; FAD_synthetase_N; 1.
DR   Gene3D; 2.40.30.30; -; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   InterPro; IPR015864; FAD_synthase.
DR   InterPro; IPR023468; Riboflavin_kinase.
DR   InterPro; IPR002606; Riboflavin_kinase_bac.
DR   InterPro; IPR015865; Riboflavin_kinase_bac/euk.
DR   InterPro; IPR023465; Riboflavin_kinase_dom_sf.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   PANTHER; PTHR22749; PTHR22749; 1.
DR   Pfam; PF06574; FAD_syn; 1.
DR   Pfam; PF01687; Flavokinase; 1.
DR   PIRSF; PIRSF004491; FAD_Synth; 1.
DR   SMART; SM00904; Flavokinase; 1.
DR   SUPFAM; SSF82114; SSF82114; 1.
DR   TIGRFAMs; TIGR00083; ribF; 1.
PE   3: Inferred from homology;
KW   ATP-binding; FAD; Flavoprotein; FMN; Kinase; Multifunctional enzyme;
KW   Nucleotide-binding; Nucleotidyltransferase; Reference proteome;
KW   Transferase.
FT   CHAIN           1..313
FT                   /note="Bifunctional riboflavin kinase/FMN
FT                   adenylyltransferase"
FT                   /id="PRO_0000194134"
SQ   SEQUENCE   313 AA;  36418 MW;  717BBB537863D68F CRC64;
     MKIIRGIHNI KEINSNSVVT IGNFDGIHLG HQKLFSHIYQ IGQKYKLSTI VVLFEPQPLE
     FLRKNNAPVR ITKFREKIRR ISSYNFDSIL CVKFNKSFQS LSAKDFIINI LINKLHLKFI
     VIGNDFRFGF QRNGNINLLK KLGYKYQFNV IKIRPLYKNN IKISSTNIRK ALSENNIKLA
     SLLLGRVFSI SGRVIHGNKI GRTMNYPTAN ILLSKNFLLT NGVYAVKIKY CPNKYAIGIS
     NIGIKPSFSN TQKNKLLEVY LFDIKIDLYG KYIEIFIYKK IRDEQFFPSK KELKNQISQD
     ILIVQKYFNI HKN
 
 
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