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Protein

Biotin synthase

Gene

bioB

Organism
Staphylococcus aureus (strain Mu3 / ATCC 700698)
Status
Reviewed-Annotation score: -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: biotin biosynthesis

This protein is involved in step 2 of the subpathway that synthesizes biotin from 7,8-diaminononanoate.UniRule annotation
Proteins known to be involved in the 2 steps of the subpathway in this organism are:
  1. no protein annotated in this organism
  2. Biotin synthase (bioB)
This subpathway is part of the pathway biotin biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes biotin from 7,8-diaminononanoate, the pathway biotin biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi61Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi65Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi68Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi104Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi137Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi197Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi267Iron-sulfur 2 (2Fe-2S)UniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionTransferase
Biological processBiotin biosynthesis
Ligand2Fe-2S, 4Fe-4S, Iron, Iron-sulfur, Metal-binding, S-adenosyl-L-methionine

Enzyme and pathway databases

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:SAHV_2409
OrganismiStaphylococcus aureus (strain Mu3 / ATCC 700698)
Taxonomic identifieri418127 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesStaphylococcaceaeStaphylococcus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003816421 – 335Biotin synthaseAdd BLAST335

Proteomic databases

PRIDEiA7X669

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA7X669
SMRiA7X669
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

HOGENOMiHOG000239958
KOiK01012
OMAiADRFCMG

Family and domain databases

Gene3Di3.20.20.70, 1 hit
HAMAPiMF_01694 BioB, 1 hit
InterProiView protein in InterPro
IPR013785 Aldolase_TIM
IPR010722 BATS_dom
IPR034416 BATS_domain_containing
IPR002684 Biotin_synth/BioAB
IPR024177 Biotin_synthase
IPR006638 Elp3/MiaB/NifB
IPR007197 rSAM
PANTHERiPTHR22976 PTHR22976, 1 hit
PfamiView protein in Pfam
PF06968 BATS, 1 hit
PF04055 Radical_SAM, 1 hit
PIRSFiPIRSF001619 Biotin_synth, 1 hit
SFLDiSFLDG01060 BATS_domain_containing, 1 hit
SFLDG01278 biotin_synthase_like, 1 hit
SFLDS00029 Radical_SAM, 1 hit
SMARTiView protein in SMART
SM00876 BATS, 1 hit
SM00729 Elp3, 1 hit
TIGRFAMsiTIGR00433 bioB, 1 hit

Sequencei

Sequence statusi: Complete.

A7X669-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNLAKRILQG EQLTKETVLK IYEDTNIDTL DLLNEAYILR KHYFGKKVKL
60 70 80 90 100
NMILNAKSGI CPENCGYCGQ SRDIKQKQRY ALIPEEQIID GAKVAHDNHI
110 120 130 140 150
GTYCIVMSGR GPSDKEVDHI SNTVRTIKSQ HPQLKICACL GLTNDEQAKK
160 170 180 190 200
LKSAGVDRYN HNINTSENYH DNVVTTHSYK DRTDTIELMK ANNISPCSGV
210 220 230 240 250
ICGMGESNQD IVDMAFALKE MDADSIPINF LHPIKGTKFG SMDDLTPMKC
260 270 280 290 300
LRIVALFRLI NPTKEIRIAG GREVNLRSLQ PLALKAANSI FVGDYLITGG
310 320 330
QPNQLDYDMI NDLGFEIDYD TCENKENKND VSRAN
Length:335
Mass (Da):37,545
Last modified:October 23, 2007 - v1
Checksum:i0C7DAB4ECCB73A5B
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP009324 Genomic DNA Translation: BAF79292.1
RefSeqiWP_001046645.1, NC_009782.1

Genome annotation databases

EnsemblBacteriaiBAF79292; BAF79292; SAHV_2409
KEGGisaw:SAHV_2409

Entry informationi

Entry nameiBIOB_STAA1
AccessioniPrimary (citable) accession number: A7X669
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: October 23, 2007
Last modified: May 23, 2018
This is version 68 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

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