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Protein

Biotin synthase

Gene

bioB

Organism
Mycobacterium marinum (strain ATCC BAA-535 / M)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the conversion of dethiobiotin (DTB) to biotin by the insertion of a sulfur atom into dethiobiotin via a radical-based mechanism.UniRule annotation

Catalytic activityi

Dethiobiotin + sulfur-(sulfur carrier) + 2 S-adenosyl-L-methionine = biotin + (sulfur carrier) + 2 L-methionine + 2 5'-deoxyadenosine.UniRule annotation

Cofactori

Protein has several cofactor binding sites:
  • [4Fe-4S] clusterUniRule annotationNote: Binds 1 [4Fe-4S] cluster. The cluster is coordinated with 3 cysteines and an exchangeable S-adenosyl-L-methionine.UniRule annotation
  • [2Fe-2S] clusterUniRule annotationNote: Binds 1 [2Fe-2S] cluster. The cluster is coordinated with 3 cysteines and 1 arginine.UniRule annotation

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi85 – 851Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi89 – 891Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi92 – 921Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi128 – 1281Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi161 – 1611Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi220 – 2201Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi290 – 2901Iron-sulfur 2 (2Fe-2S)UniRule annotation

GO - Molecular functioni

  1. 2 iron, 2 sulfur cluster binding Source: UniProtKB-KW
  2. 4 iron, 4 sulfur cluster binding Source: UniProtKB-KW
  3. biotin synthase activity Source: UniProtKB-HAMAP
  4. iron ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. biotin biosynthetic process Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Transferase

Keywords - Biological processi

Biotin biosynthesis

Keywords - Ligandi

2Fe-2S, 4Fe-4S, Iron, Iron-sulfur, Metal-binding, S-adenosyl-L-methionine

Enzyme and pathway databases

BioCyciMMAR216594:GJOB-2402-MONOMER.
UniPathwayiUPA00078; UER00162.

Names & Taxonomyi

Protein namesi
Recommended name:
Biotin synthaseUniRule annotation (EC:2.8.1.6UniRule annotation)
Gene namesi
Name:bioBUniRule annotation
Ordered Locus Names:MMAR_2387
OrganismiMycobacterium marinum (strain ATCC BAA-535 / M)
Taxonomic identifieri216594 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaActinobacteridaeActinomycetalesCorynebacterineaeMycobacteriaceaeMycobacterium
ProteomesiUP000001190: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 349349Biotin synthasePRO_0000381480Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi216594.MMAR_2387.

Structurei

3D structure databases

ProteinModelPortaliB2HQ93.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the radical SAM superfamily. Biotin synthase family.UniRule annotation

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiCAQSSHH.
OrthoDBiEOG622PMP.

Family and domain databases

Gene3Di3.20.20.70. 1 hit.
HAMAPiMF_01694. BioB.
InterProiIPR013785. Aldolase_TIM.
IPR010722. BATS_dom.
IPR002684. Biotin_synth/BioAB.
IPR024177. Biotin_synthase.
IPR006638. Elp3/MiaB/NifB.
IPR007197. rSAM.
[Graphical view]
PfamiPF06968. BATS. 1 hit.
PF04055. Radical_SAM. 1 hit.
[Graphical view]
PIRSFiPIRSF001619. Biotin_synth. 1 hit.
SMARTiSM00876. BATS. 1 hit.
SM00729. Elp3. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00433. bioB. 1 hit.

Sequencei

Sequence statusi: Complete.

B2HQ93-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MTQAATRPSN DAGQDGVTEP DILAVARQQV LERGEGLNQE QVLQVLQLSE
60 70 80 90 100
DRLEELLALA HDVRMRWCGP EVEVEGIISL KTGGCPEDCH FCSQSGLFSS
110 120 130 140 150
PVRSAWLDIP SLVEAAKQTA KSGATEFCIV AAVRGPDARL LSQVAAGIEA
160 170 180 190 200
IRNEVEINVA CSLGMLTAEQ VEQLAAMGVH RYNHNLETAR SYFTNVVTTH
210 220 230 240 250
TWEERWQTLT MVRDAGMEVC CGGILGMGET LEQRAEFAAN LAELDPDEVP
260 270 280 290 300
LNFLNPRPGT PFGDLEVLPA GEALKAVGAF RLALPRTMLR FAGGREITLG
310 320 330 340
DLGAKRGILG GINAVIVGNY LTTLGRPAEA DLELLEDLQM PLKALNASL
Length:349
Mass (Da):37,599
Last modified:June 10, 2008 - v1
Checksum:i3F5C45C9B6237915
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000854 Genomic DNA. Translation: ACC40836.1.
RefSeqiYP_001850691.1. NC_010612.1.

Genome annotation databases

EnsemblBacteriaiACC40836; ACC40836; MMAR_2387.
GeneIDi6226651.
KEGGimmi:MMAR_2387.
PATRICi18065723. VBIMycMar75906_2543.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000854 Genomic DNA. Translation: ACC40836.1.
RefSeqiYP_001850691.1. NC_010612.1.

3D structure databases

ProteinModelPortaliB2HQ93.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi216594.MMAR_2387.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACC40836; ACC40836; MMAR_2387.
GeneIDi6226651.
KEGGimmi:MMAR_2387.
PATRICi18065723. VBIMycMar75906_2543.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiCAQSSHH.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciMMAR216594:GJOB-2402-MONOMER.

Family and domain databases

Gene3Di3.20.20.70. 1 hit.
HAMAPiMF_01694. BioB.
InterProiIPR013785. Aldolase_TIM.
IPR010722. BATS_dom.
IPR002684. Biotin_synth/BioAB.
IPR024177. Biotin_synthase.
IPR006638. Elp3/MiaB/NifB.
IPR007197. rSAM.
[Graphical view]
PfamiPF06968. BATS. 1 hit.
PF04055. Radical_SAM. 1 hit.
[Graphical view]
PIRSFiPIRSF001619. Biotin_synth. 1 hit.
SMARTiSM00876. BATS. 1 hit.
SM00729. Elp3. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00433. bioB. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC BAA-535 / M.

Entry informationi

Entry nameiBIOB_MYCMM
AccessioniPrimary (citable) accession number: B2HQ93
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: June 10, 2008
Last modified: January 7, 2015
This is version 46 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.