ID BIOB_MYCS2 Reviewed; 353 AA. AC A0QX70; I7G8Q7; DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot. DT 09-JAN-2007, sequence version 1. DT 27-MAR-2024, entry version 103. 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=MSMEG_3194, MSMEI_3112; OS Mycolicibacterium smegmatis (strain ATCC 700084 / mc(2)155) (Mycobacterium OS smegmatis). OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae; OC Mycolicibacterium. OX NCBI_TaxID=246196; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 700084 / mc(2)155; RA Fleischmann R.D., Dodson R.J., Haft D.H., Merkel J.S., Nelson W.C., RA Fraser C.M.; RL Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases. RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 700084 / mc(2)155; RX PubMed=17295914; DOI=10.1186/gb-2007-8-2-r20; RA Deshayes C., Perrodou E., Gallien S., Euphrasie D., Schaeffer C., RA Van-Dorsselaer A., Poch O., Lecompte O., Reyrat J.-M.; RT "Interrupted coding sequences in Mycobacterium smegmatis: authentic RT mutations or sequencing errors?"; RL Genome Biol. 8:R20.1-R20.9(2007). RN [3] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 700084 / mc(2)155; RX PubMed=18955433; DOI=10.1101/gr.081901.108; RA Gallien S., Perrodou E., Carapito C., Deshayes C., Reyrat J.-M., RA Van Dorsselaer A., Poch O., Schaeffer C., Lecompte O.; RT "Ortho-proteogenomics: multiple proteomes investigation through orthology RT and a new MS-based protocol."; RL Genome Res. 19:128-135(2009). 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 -!- SEQUENCE CAUTION: CC Sequence=AFP39576.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000305}; 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; CP000480; ABK73579.1; -; Genomic_DNA. DR EMBL; CP001663; AFP39576.1; ALT_INIT; Genomic_DNA. DR RefSeq; YP_887508.1; NC_008596.1. DR AlphaFoldDB; A0QX70; -. DR SMR; A0QX70; -. DR STRING; 246196.MSMEG_3194; -. DR PaxDb; 246196-MSMEI_3112; -. DR KEGG; msg:MSMEI_3112; -. DR KEGG; msm:MSMEG_3194; -. DR PATRIC; fig|246196.19.peg.3156; -. DR eggNOG; COG0502; Bacteria. DR OrthoDB; 9786826at2; -. DR UniPathway; UPA00078; UER00162. DR Proteomes; UP000000757; Chromosome. DR Proteomes; UP000006158; 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; SFLDG01082; B12-binding_domain_containing; 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..353 FT /note="Biotin synthase" FT /id="PRO_0000381482" FT DOMAIN 74..299 FT /note="Radical SAM core" FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01266" FT BINDING 89 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 93 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="[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 132 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 165 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 224 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" FT BINDING 294 FT /ligand="[2Fe-2S] cluster" FT /ligand_id="ChEBI:CHEBI:190135" FT /evidence="ECO:0000255|HAMAP-Rule:MF_01694" SQ SEQUENCE 353 AA; 38396 MW; DC0B6115C06BEB0D CRC64; MFEVFRDLFN PQEDGVTQAA INGTDVLDVA REQVLERGVG LDQAQTLQVL QLPDERLDDL LSLAHEVRMR WCGPDVEVEG IISLKTGGCP EDCHFCSQSG LFASPVRSAW LDVPSLVEAA KQTAKTGATE FCIVAAVRGP DERLLAQVAA GIEAIRNEVD IQIACSLGML TEEQVQRLAD MGVHRYNHNL ETARSFFPNV VTTHTWEERW DTLNMVREAG MEVCCGGILG MGETLEQRAE FAANLAELNP HEVPLNFLNP RPGTPFGDLE VLPASEALKA VAAFRLALPR TMLRFAGGRE ITLGDLGAKK GILGGINAVI VGNYLTTLGR PAEADLQLLD DLQMPIKALN ATL //