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Protein

Biotin synthase

Gene

bioB

Organism
Vibrio campbellii (strain ATCC BAA-1116 / BB120)
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 bindingi53 – 531Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi57 – 571Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi60 – 601Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi97 – 971Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi128 – 1281Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi188 – 1881Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi260 – 2601Iron-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

BioCyciVHAR338187:GJCH-1797-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:VIBHAR_01807
OrganismiVibrio campbellii (strain ATCC BAA-1116 / BB120)
Taxonomic identifieri338187 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaVibrionalesVibrionaceaeVibrio
ProteomesiUP000008152 Componenti: Chromosome I

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 350350Biotin synthasePRO_0000381699Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi338187.VIBHAR_01807.

Structurei

3D structure databases

ProteinModelPortaliA7MX36.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239957.
KOiK01012.
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.

A7MX36-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEVRHNWTHA EVRDLMEKPF MDLLFEAQLV HRQYQQTNYV QVSTLLSIKT
60 70 80 90 100
GACPEDCKYC PQSARYTTDI EKERLMEVER VLDAAQKAKN AGSTRFCMGA
110 120 130 140 150
AWKNPKERDM PHLTDMIKGV KGMGLETCMT LGMLTPDQAK QLATAGLDYY
160 170 180 190 200
NHNLDTSPEF YGNIITTRTY QDRLDTLSHV RDAGMKICSG GIIGMGESAN
210 220 230 240 250
DRAGLLVELA NLPVHPESVP INMLVKVKGT PLEEVDDVEP FDFIRLIAIA
260 270 280 290 300
RIMMPQSAVR LSAGRENMNE QMQALCFMAG ANSVFYGCKL LTTPNPSEDK
310 320 330 340 350
DMMLFNKLGI NSQEVSQKPD EIEENELLDR VVERVTARPT KDDLFYDASV
Length:350
Mass (Da):39,385
Last modified:July 28, 2009 - v2
Checksum:iE32E090DD16069C7
GO

Sequence cautioni

The sequence ABU70776.1 differs from that shown. Reason: Erroneous initiation. Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000789 Genomic DNA. Translation: ABU70776.1. Different initiation.
RefSeqiYP_001445003.1. NC_009783.1.

Genome annotation databases

EnsemblBacteriaiABU70776; ABU70776; VIBHAR_01807.
GeneIDi5552898.
KEGGivha:VIBHAR_01807.
PATRICi20130385. VBIVibHar24526_1734.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000789 Genomic DNA. Translation: ABU70776.1. Different initiation.
RefSeqiYP_001445003.1. NC_009783.1.

3D structure databases

ProteinModelPortaliA7MX36.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi338187.VIBHAR_01807.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABU70776; ABU70776; VIBHAR_01807.
GeneIDi5552898.
KEGGivha:VIBHAR_01807.
PATRICi20130385. VBIVibHar24526_1734.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239957.
KOiK01012.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciVHAR338187:GJCH-1797-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-1116 / BB120.

Entry informationi

Entry nameiBIOB_VIBCB
AccessioniPrimary (citable) accession number: A7MX36
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: July 28, 2009
Last modified: March 4, 2015
This is version 50 of the entry and version 2 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.