ID BIOB_THEVB Reviewed; 360 AA. AC Q8DL38; DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot. DT 01-MAR-2003, sequence version 1. DT 27-MAR-2024, entry version 115. 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=tll0661; OS Thermosynechococcus vestitus (strain NIES-2133 / IAM M-273 / BP-1). OC Bacteria; Cyanobacteriota; Cyanophyceae; Acaryochloridales; OC Thermosynechococcaceae; Thermosynechococcus. OX NCBI_TaxID=197221; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=NIES-2133 / IAM M-273 / BP-1; RX PubMed=12240834; DOI=10.1093/dnares/9.4.123; RA Nakamura Y., Kaneko T., Sato S., Ikeuchi M., Katoh H., Sasamoto S., RA Watanabe A., Iriguchi M., Kawashima K., Kimura T., Kishida Y., Kiyokawa C., RA Kohara M., Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Sugimoto M., RA Takeuchi C., Yamada M., Tabata S.; RT "Complete genome structure of the thermophilic cyanobacterium RT Thermosynechococcus elongatus BP-1."; RL DNA Res. 9:123-130(2002). 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; BA000039; BAC08212.1; -; Genomic_DNA. DR RefSeq; NP_681450.1; NC_004113.1. DR AlphaFoldDB; Q8DL38; -. DR SMR; Q8DL38; -. DR STRING; 197221.gene:10747251; -. DR EnsemblBacteria; BAC08212; BAC08212; BAC08212. DR KEGG; tel:tll0661; -. DR PATRIC; fig|197221.4.peg.700; -. DR eggNOG; COG0502; Bacteria. DR UniPathway; UPA00078; UER00162. DR Proteomes; UP000000440; Chromosome. 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 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..360 FT /note="Biotin synthase" FT /id="PRO_0000381683" FT DOMAIN 79..305 FT /note="Radical SAM core" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266" FT BINDING 94 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 98 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 101 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 138 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 170 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 230 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 300 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" SQ SEQUENCE 360 AA; 39878 MW; AA370F3D3E6694B1 CRC64; MNSISASAIV LWKNTPLPFV VKSYPMSTLT TDWQHLANLA LADECLSRDQ ARAVLQAPDT ELLNQLAAAY RVRYHYWGNR VRLHYLLNAQ SGLCPEDCHY CSQSKISTAE IEKYPLLSQE KILAAADRAA HLKAGTFCMV ISGRSPSEKV FEQVLAAIRA VKERYPLKIC ACLGLLTPEQ TARLAAAGVD RVNHNLNTSE NFYSEICTTH TFRDRDQTLA NIQAAGITTC SGGILGMGES DDDVIDLALF LRQRQVTSVP VNFLIPIPGT PLGEQHTLNP RHCLRILVLF RFLLPRQEIR IAGGREVHLR SLQPLGLYAA NSMFIGDYLT TPGQAPHQDW QMIADAGFVL EDPEGRAIAP //