ID BIOB_AQUAE Reviewed; 332 AA. AC O67104; DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot. DT 01-AUG-1998, sequence version 1. DT 27-MAR-2024, entry version 129. 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=aq_975; OS Aquifex aeolicus (strain VF5). OC Bacteria; Aquificota; Aquificae; Aquificales; Aquificaceae; Aquifex. OX NCBI_TaxID=224324; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=VF5; RX PubMed=9537320; DOI=10.1038/32831; RA Deckert G., Warren P.V., Gaasterland T., Young W.G., Lenox A.L., RA Graham D.E., Overbeek R., Snead M.A., Keller M., Aujay M., Huber R., RA Feldman R.A., Short J.M., Olsen G.J., Swanson R.V.; RT "The complete genome of the hyperthermophilic bacterium Aquifex aeolicus."; RL Nature 392:353-358(1998). 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}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AE000657; AAC07061.1; -; Genomic_DNA. DR PIR; E70384; E70384. DR RefSeq; NP_213667.1; NC_000918.1. DR RefSeq; WP_010880605.1; NC_000918.1. DR AlphaFoldDB; O67104; -. DR SMR; O67104; -. DR STRING; 224324.aq_975; -. DR DNASU; 1193738; -. DR EnsemblBacteria; AAC07061; AAC07061; aq_975. DR KEGG; aae:aq_975; -. DR PATRIC; fig|224324.8.peg.767; -. DR eggNOG; COG0502; Bacteria. DR HOGENOM; CLU_033172_2_1_0; -. DR InParanoid; O67104; -. DR OrthoDB; 9786826at2; -. DR UniPathway; UPA00078; UER00162. DR Proteomes; UP000000798; 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; SFLDG01278; biotin_synthase_like; 1. DR SFLD; SFLDS00029; Radical_SAM; 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..332 FT /note="Biotin synthase" FT /id="PRO_0000381206" FT DOMAIN 52..282 FT /note="Radical SAM core" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266" FT BINDING 70 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 74 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 77 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 114 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 147 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 207 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 277 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" SQ SEQUENCE 332 AA; 37771 MW; 18C394EC7BC60B3F CRC64; MDKVERRLYE LYEKAINYEP LSKEEALYIL EVDDIYVPFL VHLAQKIKKH YFPENEVEFC SIINAKSGAC SEDCKFCAQS KYYKTPINVY NLVPVDEMVE GAIRGVEFGA NRYCIVLSGK SATKEEVERI TEAVKEIKNE GLPINVCVSA GTLDEESLKK LKEAGVKRIN HNLETSRNFF KNIVTTHTWE DRYETIKRIK KVGLSTCSGG IFGMGESNED RVDMALTYRE LEVDSIPLNF LMPIEGTPME NAPGVEVMEA LKIIAMFRFT NPKAELRLCG GREQNLRDFH GMATLMTNAM MVGGYLTRAG RDIKKDYQLL KDLKAKRKVS VE //