ID   BIOB_COXBU              Reviewed;         321 AA.
AC   Q83CU5;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   27-MAR-2024, entry version 119.
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};
GN   OrderedLocusNames=CBU_1007;
OS   Coxiella burnetii (strain RSA 493 / Nine Mile phase I).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Legionellales; Coxiellaceae;
OC   Coxiella.
OX   NCBI_TaxID=227377;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RSA 493 / Nine Mile phase I;
RX   PubMed=12704232; DOI=10.1073/pnas.0931379100;
RA   Seshadri R., Paulsen I.T., Eisen J.A., Read T.D., Nelson K.E., Nelson W.C.,
RA   Ward N.L., Tettelin H., Davidsen T.M., Beanan M.J., DeBoy R.T.,
RA   Daugherty S.C., Brinkac L.M., Madupu R., Dodson R.J., Khouri H.M.,
RA   Lee K.H., Carty H.A., Scanlan D., Heinzen R.A., Thompson H.A., Samuel J.E.,
RA   Fraser C.M., Heidelberg J.F.;
RT   "Complete genome sequence of the Q-fever pathogen, Coxiella burnetii.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:5455-5460(2003).
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; AE016828; AAO90528.1; -; Genomic_DNA.
DR   RefSeq; NP_820014.1; NC_002971.3.
DR   RefSeq; WP_005768604.1; NZ_CDBG01000001.1.
DR   AlphaFoldDB; Q83CU5; -.
DR   SMR; Q83CU5; -.
DR   STRING; 227377.CBU_1007; -.
DR   EnsemblBacteria; AAO90528; AAO90528; CBU_1007.
DR   GeneID; 1208903; -.
DR   KEGG; cbu:CBU_1007; -.
DR   PATRIC; fig|227377.7.peg.1000; -.
DR   eggNOG; COG0502; Bacteria.
DR   HOGENOM; CLU_033172_1_2_6; -.
DR   OrthoDB; 9786826at2; -.
DR   UniPathway; UPA00078; UER00162.
DR   Proteomes; UP000002671; Chromosome.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster binding; IBA:GO_Central.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0004076; F:biotin synthase activity; IBA:GO_Central.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009102; P:biotin biosynthetic process; IBA:GO_Central.
DR   CDD; cd01335; Radical_SAM; 1.
DR   Gene3D; 3.20.20.70; Aldolase class I; 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/MiaA/NifB-like_rSAM.
DR   InterPro; IPR007197; rSAM.
DR   NCBIfam; TIGR00433; bioB; 1.
DR   PANTHER; PTHR22976; BIOTIN SYNTHASE; 1.
DR   PANTHER; PTHR22976:SF2; BIOTIN SYNTHASE, MITOCHONDRIAL; 1.
DR   Pfam; PF06968; BATS; 1.
DR   Pfam; PF04055; Radical_SAM; 1.
DR   PIRSF; PIRSF001619; Biotin_synth; 1.
DR   SFLD; SFLDG01060; BATS_domain_containing; 1.
DR   SFLD; SFLDF00272; biotin_synthase; 1.
DR   SMART; SM00876; BATS; 1.
DR   SMART; SM00729; Elp3; 1.
DR   SUPFAM; SSF102114; Radical SAM enzymes; 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   Reference proteome; S-adenosyl-L-methionine; Transferase.
FT   CHAIN           1..321
FT                   /note="Biotin synthase"
FT                   /id="PRO_0000381335"
FT   DOMAIN          37..264
FT                   /note="Radical SAM core"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01266"
FT   BINDING         52
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         56
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         59
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         96
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         127
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         187
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
FT   BINDING         259
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01694"
SQ   SEQUENCE   321 AA;  36252 MW;  FDC79146CEC713D8 CRC64;
     MKGRNWNQAS VAKLFELPFF ELLYKAYETH RSHFDVRDME LCTLSSIKTG TCPEDCAYCP
     QSGHYKTDVE REKLINLEAV LEQAKVAKEN GARRFCMGAA WRSPPKRELP KVLEMIKSVK
     ALGLETCVTL GMLDQEQALQ LKEAGLDFYN HNLDTSPEFY KKIITTRTYQ DRMETLKNVR
     NAGINVCCGG ILGMGESRAD RIQLLLELYQ LPEPPTSIPI NQLIPIKGTP LENTKAIDPF
     EFIKTIAITR LLFPTSVIRL SAGREAMSDE LQAWCFMAGA NSIFYGDKLL TAKNPGQNRD
     VNLLKKLGLK VPVLTEEYAC Y
//