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Protein

Biotin synthase

Gene

bioB

Organism
Bacillus weihenstephanensis (strain KBAB4)
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 + 2 reduced [2Fe-2S] ferredoxin = biotin + (sulfur carrier) + 2 L-methionine + 2 5'-deoxyadenosine + 2 oxidized [2Fe-2S] ferredoxin.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 bindingi71 – 711Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi75 – 751Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi78 – 781Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi115 – 1151Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi147 – 1471Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi207 – 2071Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi277 – 2771Iron-sulfur 2 (2Fe-2S)UniRule annotation

GO - Molecular functioni

GO - Biological processi

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

BioCyciBWEI315730:GHRU-4061-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:BcerKBAB4_3946
OrganismiBacillus weihenstephanensis (strain KBAB4)
Taxonomic identifieri315730 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillusBacillus cereus group
ProteomesiUP000002154 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 332332Biotin synthasePRO_0000381235Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi315730.BcerKBAB4_3946.

Structurei

3D structure databases

ProteinModelPortaliA9VG53.
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.

A9VG53-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKQVQTKRDW KKLAYDVVEE KMITKEDAIA ILEADDTEVL EIMNAAYIIR
60 70 80 90 100
HHHFGKKVKL NMIINTKSGL CPEDCGYCSQ SIISEAPIDK YAWLTQEKIV
110 120 130 140 150
EGAHEAIRRK AGTYCIVASG RRPTNKEVNH VIGAVKEIRE TTDLKICCCL
160 170 180 190 200
GFLNEDQAGQ LAEAGVHRYN HNLNTHANNY DSICSTHTYD DRVDTVQKAK
210 220 230 240 250
QAGISPCSGA IFGMGETIEQ RAEIAFELQR LDADSIPCNF LVAVKGTPLE
260 270 280 290 300
GQKELTPVEC LKVLAMMRFV NPTKEIRISG GRELNLRSVQ PLGLFAANSI
310 320 330
FVGDYLTTAG QEPTADWGMI EDLGFEIEEC AL
Length:332
Mass (Da):36,926
Last modified:February 5, 2008 - v1
Checksum:i9EB5679176B39A51
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000903 Genomic DNA. Translation: ABY45113.1.
RefSeqiWP_002014986.1. NC_010184.1.
YP_001646741.1. NC_010184.1.

Genome annotation databases

EnsemblBacteriaiABY45113; ABY45113; BcerKBAB4_3946.
GeneIDi22938316.
KEGGibwe:BcerKBAB4_3946.
PATRICi19012535. VBIBacWei55973_4584.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000903 Genomic DNA. Translation: ABY45113.1.
RefSeqiWP_002014986.1. NC_010184.1.
YP_001646741.1. NC_010184.1.

3D structure databases

ProteinModelPortaliA9VG53.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi315730.BcerKBAB4_3946.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABY45113; ABY45113; BcerKBAB4_3946.
GeneIDi22938316.
KEGGibwe:BcerKBAB4_3946.
PATRICi19012535. VBIBacWei55973_4584.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiCAQSSHH.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciBWEI315730:GHRU-4061-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: KBAB4.

Entry informationi

Entry nameiBIOB_BACWK
AccessioniPrimary (citable) accession number: A9VG53
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: February 5, 2008
Last modified: May 27, 2015
This is version 54 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

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.