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BIOB_FRAT1
ID   BIOB_FRAT1              Reviewed;         313 AA.
AC   Q14HR4;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-AUG-2006, sequence version 1.
DT   03-AUG-2022, entry version 90.
DE   RecName: Full=Biotin synthase {ECO:0000255|HAMAP-Rule:MF_01694};
DE            EC=2.8.1.6 {ECO:0000255|HAMAP-Rule:MF_01694};
GN   Name=bioB {ECO:0000255|HAMAP-Rule:MF_01694}; OrderedLocusNames=FTF0937c;
OS   Francisella tularensis subsp. tularensis (strain FSC 198).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=393115;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=FSC 198;
RX   PubMed=17406676; DOI=10.1371/journal.pone.0000352;
RA   Chaudhuri R.R., Ren C.-P., Desmond L., Vincent G.A., Silman N.J.,
RA   Brehm J.K., Elmore M.J., Hudson M.J., Forsman M., Isherwood K.E.,
RA   Gurycova D., Minton N.P., Titball R.W., Pallen M.J., Vipond R.;
RT   "Genome sequencing shows that European isolates of Francisella tularensis
RT   subspecies tularensis are almost identical to US laboratory strain Schu
RT   S4.";
RL   PLoS ONE 2:E352-E352(2007).
CC   -!- FUNCTION: Catalyzes the conversion of dethiobiotin (DTB) to biotin by
CC       the insertion of a sulfur atom into dethiobiotin via a radical-based
CC       mechanism. {ECO:0000255|HAMAP-Rule:MF_01694}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(4R,5S)-dethiobiotin + [sulfur carrier]-SH + 2 reduced [2Fe-
CC         2S]-[ferredoxin] + 2 S-adenosyl-L-methionine = 2 5'-deoxyadenosine +
CC         [sulfur carrier]-H + biotin + 2 L-methionine + 2 oxidized [2Fe-2S]-
CC         [ferredoxin]; Xref=Rhea:RHEA:22060, Rhea:RHEA-COMP:10000, Rhea:RHEA-
CC         COMP:10001, Rhea:RHEA-COMP:14737, Rhea:RHEA-COMP:14739,
CC         ChEBI:CHEBI:17319, ChEBI:CHEBI:29917, ChEBI:CHEBI:33737,
CC         ChEBI:CHEBI:33738, ChEBI:CHEBI:57586, ChEBI:CHEBI:57844,
CC         ChEBI:CHEBI:59789, ChEBI:CHEBI:64428, ChEBI:CHEBI:149473; EC=2.8.1.6;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01694};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01694};
CC       Note=Binds 1 [4Fe-4S] cluster. The cluster is coordinated with 3
CC       cysteines and an exchangeable S-adenosyl-L-methionine.
CC       {ECO:0000255|HAMAP-Rule:MF_01694};
CC   -!- COFACTOR:
CC       Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01694};
CC       Note=Binds 1 [2Fe-2S] cluster. The cluster is coordinated with 3
CC       cysteines and 1 arginine. {ECO:0000255|HAMAP-Rule:MF_01694};
CC   -!- PATHWAY: Cofactor biosynthesis; biotin biosynthesis; biotin from 7,8-
CC       diaminononanoate: step 2/2. {ECO:0000255|HAMAP-Rule:MF_01694}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01694}.
CC   -!- SIMILARITY: Belongs to the radical SAM superfamily. Biotin synthase
CC       family. {ECO:0000255|HAMAP-Rule:MF_01694}.
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DR   EMBL; AM286280; CAL08953.1; -; Genomic_DNA.
DR   RefSeq; WP_003020978.1; NC_008245.1.
DR   AlphaFoldDB; Q14HR4; -.
DR   SMR; Q14HR4; -.
DR   KEGG; ftf:FTF0937c; -.
DR   HOGENOM; CLU_033172_1_2_6; -.
DR   OMA; ADRFCMG; -.
DR   UniPathway; UPA00078; UER00162.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0004076; F:biotin synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009102; P:biotin biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01694; BioB; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR010722; BATS_dom.
DR   InterPro; IPR002684; Biotin_synth/BioAB.
DR   InterPro; IPR024177; Biotin_synthase.
DR   InterPro; IPR006638; Elp3/MiaB/NifB.
DR   InterPro; IPR007197; rSAM.
DR   PANTHER; PTHR22976; PTHR22976; 1.
DR   Pfam; PF06968; BATS; 1.
DR   Pfam; PF04055; Radical_SAM; 1.
DR   PIRSF; PIRSF001619; Biotin_synth; 1.
DR   SFLD; SFLDF00272; biotin_synthase; 1.
DR   SMART; SM00876; BATS; 1.
DR   SMART; SM00729; Elp3; 1.
DR   TIGRFAMs; TIGR00433; bioB; 1.
DR   PROSITE; PS51918; RADICAL_SAM; 1.
PE   3: Inferred from homology;
KW   2Fe-2S; 4Fe-4S; Biotin biosynthesis; Iron; Iron-sulfur; Metal-binding;
KW   S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..313
FT                   /note="Biotin synthase"
FT                   /id="PRO_0000381391"
FT   DOMAIN          28..258
FT                   /note="Radical SAM core"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT   BINDING         46
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         50
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         53
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_note="4Fe-4S-S-AdoMet"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         90
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         121
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         181
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         256
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
SQ   SEQUENCE   313 AA;  34895 MW;  E964798853D01157 CRC64;
     MTLQQIKEIY SRPLTELILQ ALEIHNKNFG NDIELCSLKS IKTGTCPEDC KYCPQSGHYN
     TSIEKHKLLD KDSILAEAKN AKDAGSKRFC MGAAWKHIPK KDFDQVAEII TEVKNLGLET
     CVTLGSINAD EATKLKQAGL DYYNHNLDTS REFYPEIITT RKFEERIETI RNVANADINV
     CCGGILGMGE SLDDRFNLLL ELLQLPAAPK SIPINTLIPI KGTPLGDKYT NAQIDSFELV
     RFIATTRILF PQARLRLSAG RENMSLETQT LCFLAGINSI FYGNKLLTEN NATVNSDNFL
     LAKLGLKSNA ELC
 
 
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