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Protein

Biotin synthase

Gene

bioB

Organism
Rhodopseudomonas palustris (strain BisB5)
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 bindingi70 – 701Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi74 – 741Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi77 – 771Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi114 – 1141Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi145 – 1451Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi205 – 2051Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi278 – 2781Iron-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

BioCyciRPAL316057:GHDC-2139-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:RPD_2111
OrganismiRhodopseudomonas palustris (strain BisB5)
Taxonomic identifieri316057 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesBradyrhizobiaceaeRhodopseudomonas
ProteomesiUP000001818 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 342342Biotin synthasePRO_0000381584Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi316057.RPD_2111.

Structurei

3D structure databases

ProteinModelPortaliQ138Z3.
SMRiQ138Z3. Positions 21-332.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239957.
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.

Q138Z3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNSIDLPSLA QALADSTPTI RHNWTREEAA AIYHAPFADL IFRAQTIHRQ
60 70 80 90 100
SFDANAVQCN QLLNVKTGGC AEDCGYCSQS SHHDTALPAS KLMDPAKVIE
110 120 130 140 150
GAKAARDAGA TRYCMGAAWR SPKDRDMAPV IEMVKGVKAL GMEACMTLGM
160 170 180 190 200
LTDDQAKQLA DAGLDYYNHN IDTSEEFYSS VVKTRSFGDR LETLEKVQDA
210 220 230 240 250
GIKVCCGGIL GLGEKPTDRV EMLRTLANLP QHPESVPINM LIPIEGTPIA
260 270 280 290 300
ATATPVDPFE FVRTIALARI MMPKSDVRLA AGRTAMSDEM QALCFLAGAN
310 320 330 340
SIFIGDTLLT TPNPGDSKDR ALFARLGITP RDDLGVHAHG NA
Length:342
Mass (Da):36,876
Last modified:October 30, 2006 - v1
Checksum:iDF8CB338DEE57136
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000283 Genomic DNA. Translation: ABE39346.1.
RefSeqiWP_011502528.1. NC_007958.1.
YP_569247.1. NC_007958.1.

Genome annotation databases

EnsemblBacteriaiABE39346; ABE39346; RPD_2111.
KEGGirpd:RPD_2111.
PATRICi23279203. VBIRhoPal120395_2179.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000283 Genomic DNA. Translation: ABE39346.1.
RefSeqiWP_011502528.1. NC_007958.1.
YP_569247.1. NC_007958.1.

3D structure databases

ProteinModelPortaliQ138Z3.
SMRiQ138Z3. Positions 21-332.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi316057.RPD_2111.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABE39346; ABE39346; RPD_2111.
KEGGirpd:RPD_2111.
PATRICi23279203. VBIRhoPal120395_2179.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239957.
KOiK01012.
OMAiCAQSSHH.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciRPAL316057:GHDC-2139-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: BisB5.

Entry informationi

Entry nameiBIOB_RHOPS
AccessioniPrimary (citable) accession number: Q138Z3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 27, 2009
Last sequence update: October 30, 2006
Last modified: March 31, 2015
This is version 63 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.