Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Biotin synthase

Gene

bioB

Organism
Lysinibacillus sphaericus (Bacillus sphaericus)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

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. ATP-dependent dethiobiotin synthetase BioD (bioD), ATP-dependent dethiobiotin synthetase BioD (bioD), ATP-dependent dethiobiotin synthetase BioD (bioD)
  2. Biotin synthase (bioB), Biotin synthase (bioB), 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 bindingi64Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi68Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi71Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi108Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi140Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi200Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi270Iron-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
OrganismiLysinibacillus sphaericus (Bacillus sphaericus)
Taxonomic identifieri1421 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeLysinibacillus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001855451 – 332Biotin synthaseAdd BLAST332

Proteomic databases

PRIDEiP19206

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliP19206
SMRiP19206
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

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.

P19206-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MNWLQLADEV IAGKVISDDE ALAILNSDDD DILKLMDGAF AIRKHYYGKK
60 70 80 90 100
VKLNMIMNAK SGYCPEDCGY CSQSSKSTAP IEKYPFITKE EILAGAKRAF
110 120 130 140 150
ENKIGTYCIV ASGRGPTRKD VNVVSEAVEE IKAKYGLKVC ACLGLLKEEQ
160 170 180 190 200
AQQLKEAGVD RYNHNLNTSE RHHSYITTTH TYEDRVNTVE VVKKHGISPC
210 220 230 240 250
SGAIIGMKET KMDVVEIARA LHQLDADSIP VNFLHAIDGT KLEGTQDLNP
260 270 280 290 300
RYCLKVLALF RYMNPSKEIR ISGGREVNLG FLQPFGLYAA NSIFVGDYLT
310 320 330
TEGQEANSDY RMLEDLGFEI ELTQKQEEAF CS
Length:332
Mass (Da):37,015
Last modified:November 1, 1990 - v1
Checksum:iB5FF14F5CA9903EF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M27867 Genomic DNA Translation: AAA22268.1
M29292 Genomic DNA Translation: AAB02327.1
PIRiJS0274

Similar proteinsi

Entry informationi

Entry nameiBIOB_LYSSH
AccessioniPrimary (citable) accession number: P19206
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1990
Last sequence update: November 1, 1990
Last modified: May 23, 2018
This is version 98 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Direct protein sequencing

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health