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Protein

Biotin synthase

Gene

bioB

Organism
Geobacillus thermodenitrificans (strain NG80-2)
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 bindingi65 – 651Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi69 – 691Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi72 – 721Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi109 – 1091Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi141 – 1411Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi201 – 2011Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi271 – 2711Iron-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

BioCyciGTHE420246:GIXT-1490-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:GTNG_1418
OrganismiGeobacillus thermodenitrificans (strain NG80-2)
Taxonomic identifieri420246 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeGeobacillus
ProteomesiUP000001578 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 332332Biotin synthasePRO_0000381406Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi420246.GTNG_1418.

Structurei

3D structure databases

ProteinModelPortaliA4IN84.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiYNINIQV.
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.

A4IN84-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPNWLSLAEQ VMEGYELADE EALAILDCPD DELLLLLQGA YRIRSVYYGN
60 70 80 90 100
KVKLNMIMNA KSGLCPENCG YCSQSAVATA PVKTYKMLDK ETLLRGAEEA
110 120 130 140 150
YRLQIGTYCI VASGRGPSDK EVDIVVSAVK EIKERFGLKV CACLGLLKPE
160 170 180 190 200
QAARLKEAGV DRYNHNINTS KQHHPNITTS HTYDDRVRTV ETVKEAGLSP
210 220 230 240 250
CSGVIIGMKE TKQDIVDMAR SLRELDADSI PVNFLHAIDG TPLAGTNELN
260 270 280 290 300
PRYCLKVLAL FRYMNPTKEI RIAGGREVNL RSLQPLGLYA ANSIFVGDYL
310 320 330
TTLGQEKSAD YKMLEDLGFE IEFSPAPQIG VV
Length:332
Mass (Da):36,701
Last modified:May 1, 2007 - v1
Checksum:i58ACCC64F99557CB
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000557 Genomic DNA. Translation: ABO66788.1.
RefSeqiYP_001125533.1. NC_009328.1.

Genome annotation databases

EnsemblBacteriaiABO66788; ABO66788; GTNG_1418.
KEGGigtn:GTNG_1418.
PATRICi21979235. VBIGeoThe136879_1497.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000557 Genomic DNA. Translation: ABO66788.1.
RefSeqiYP_001125533.1. NC_009328.1.

3D structure databases

ProteinModelPortaliA4IN84.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi420246.GTNG_1418.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABO66788; ABO66788; GTNG_1418.
KEGGigtn:GTNG_1418.
PATRICi21979235. VBIGeoThe136879_1497.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiYNINIQV.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciGTHE420246:GIXT-1490-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. "Genome and proteome of long-chain alkane degrading Geobacillus thermodenitrificans NG80-2 isolated from a deep-subsurface oil reservoir."
    Feng L., Wang W., Cheng J., Ren Y., Zhao G., Gao C., Tang Y., Liu X., Han W., Peng X., Liu R., Wang L.
    Proc. Natl. Acad. Sci. U.S.A. 104:5602-5607(2006) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: NG80-2.

Entry informationi

Entry nameiBIOB_GEOTN
AccessioniPrimary (citable) accession number: A4IN84
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: May 1, 2007
Last modified: April 1, 2015
This is version 57 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.