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Protein

Biotin synthase

Gene

bioB

Organism
Xanthomonas axonopodis pv. citri (strain 306)
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. ATP-dependent dethiobiotin synthetase BioD (bioD)
  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 bindingi55Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi59Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi62Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi99Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi130Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi190Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi262Iron-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:XAC0388
OrganismiXanthomonas axonopodis pv. citri (strain 306)
Taxonomic identifieri190486 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaXanthomonadalesXanthomonadaceaeXanthomonas
Proteomesi
  • UP000000576 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003817061 – 344Biotin synthaseAdd BLAST344

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi190486.XAC0388

Structurei

3D structure databases

ProteinModelPortaliQ8PQD7
SMRiQ8PQD7
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiENOG4105CZF Bacteria
COG0502 LUCA
HOGENOMiHOG000239957
KOiK01012
OMAiADRFCMG
OrthoDBiPOG091H01DF

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
SFLDiSFLDF00272 biotin_synthase, 1 hit
SFLDG01060 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.

Q8PQD7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSVVLRHDWD RKELQALFDL PFPELLHRAA SVHRAHFDPA QVQVSTLLSV
60 70 80 90 100
KTGGCPEDCA YCPQAQRYDT GVSAQKLMET EEVVAKARQA KAAGASRFCM
110 120 130 140 150
GAAWRSPKER DIPKVAAMIR EVKAMGLETC ATLGMLDAGQ ARALKDAGLD
160 170 180 190 200
YYNHNLDTAP DYYDSIIHTR QYQDRLNTLE HVRDVGLKTC CGGIVGMGET
210 220 230 240 250
REHRIGLLLA LATLPAHPDS VPINQLVQVP GTPLHGTQQL DPFEFVRMIA
260 270 280 290 300
VARIAMPKSM VRLSAGRETM SDELQALCFL AGANSIFYGE KLLTTGNPDT
310 320 330 340
ERDQALFQRL GLRPMQVTVD AAEHDHPGTV HAEITRSAAC EHAA
Length:344
Mass (Da):37,779
Last modified:October 1, 2002 - v1
Checksum:i0116F9CA1F68AB70
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE008923 Genomic DNA Translation: AAM35280.1
RefSeqiWP_011050284.1, NC_003919.1

Genome annotation databases

EnsemblBacteriaiAAM35280; AAM35280; XAC0388
KEGGixac:XAC0388

Similar proteinsi

Entry informationi

Entry nameiBIOB_XANAC
AccessioniPrimary (citable) accession number: Q8PQD7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: October 1, 2002
Last modified: March 28, 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

Complete proteome, Reference proteome

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