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Protein

Biotin synthase

Gene

bioB

Organism
Streptococcus agalactiae serotype Ia (strain ATCC 27591 / A909 / CDC SS700)
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 bindingi68 – 681Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi72 – 721Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi75 – 751Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi112 – 1121Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi144 – 1441Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi204 – 2041Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi274 – 2741Iron-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

BioCyciSAGA205921:GHD7-566-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:SAK_0566
OrganismiStreptococcus agalactiae serotype Ia (strain ATCC 27591 / A909 / CDC SS700)
Taxonomic identifieri205921 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus
ProteomesiUP000002701 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 330330Biotin synthasePRO_0000381660Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi205921.SAK_0566.

Structurei

3D structure databases

ProteinModelPortaliQ3K2Q5.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiTCENTLR.
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.

Q3K2Q5-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSFQTNYIHL ADEILSGKTS ISYEQALEIL NSDENWWEIY AAALYLKNQV
60 70 80 90 100
SRNNIRLNVL LSAKQGLCAE NCGYCSQSKE STADIDKFGL LPQNVILKQA
110 120 130 140 150
IVAHQNGASV FCIAMSGTKP SKREIEQLCQ VIPEIKKSLP LEICLTAGFL
160 170 180 190 200
DREQLHQLKQ AGIDRINHNL NTPEENYPNI ATTHSFKDRC DTLERIHNED
210 220 230 240 250
IDVCSGFICG MGESDEGLIT LAFRLKELDP YSIPVNFLLA VEGTPLGKYN
260 270 280 290 300
YLTPIKCLKI MAMLRFVFPF KELRLSAGRE VHFENFESLV TLLVDSTFLG
310 320 330
NYLTEGGRNQ HTDIEFLEKL QLNHTKKELI
Length:330
Mass (Da):37,338
Last modified:November 8, 2005 - v1
Checksum:iFCD9C0E135D26FC7
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000114 Genomic DNA. Translation: ABA46073.1.
RefSeqiWP_000009961.1. NC_007432.1.
YP_329198.1. NC_007432.1.

Genome annotation databases

EnsemblBacteriaiABA46073; ABA46073; SAK_0566.
KEGGisak:SAK_0566.
PATRICi19632359. VBIStrAga82541_0490.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000114 Genomic DNA. Translation: ABA46073.1.
RefSeqiWP_000009961.1. NC_007432.1.
YP_329198.1. NC_007432.1.

3D structure databases

ProteinModelPortaliQ3K2Q5.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi205921.SAK_0566.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABA46073; ABA46073; SAK_0566.
KEGGisak:SAK_0566.
PATRICi19632359. VBIStrAga82541_0490.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiTCENTLR.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciSAGA205921:GHD7-566-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 analysis of multiple pathogenic isolates of Streptococcus agalactiae: implications for the microbial 'pan-genome'."
    Tettelin H., Masignani V., Cieslewicz M.J., Donati C., Medini D., Ward N.L., Angiuoli S.V., Crabtree J., Jones A.L., Durkin A.S., DeBoy R.T., Davidsen T.M., Mora M., Scarselli M., Margarit y Ros I., Peterson J.D., Hauser C.R., Sundaram J.P.
    , Nelson W.C., Madupu R., Brinkac L.M., Dodson R.J., Rosovitz M.J., Sullivan S.A., Daugherty S.C., Haft D.H., Selengut J., Gwinn M.L., Zhou L., Zafar N., Khouri H., Radune D., Dimitrov G., Watkins K., O'Connor K.J., Smith S., Utterback T.R., White O., Rubens C.E., Grandi G., Madoff L.C., Kasper D.L., Telford J.L., Wessels M.R., Rappuoli R., Fraser C.M.
    Proc. Natl. Acad. Sci. U.S.A. 102:13950-13955(2005) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 27591 / A909 / CDC SS700.

Entry informationi

Entry nameiBIOB_STRA1
AccessioniPrimary (citable) accession number: Q3K2Q5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: November 8, 2005
Last modified: May 27, 2015
This is version 66 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.