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Protein

Biotin synthase

Gene

bioB

Organism
Shewanella baltica (strain OS185)
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 bindingi56Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi60Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi63Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi100Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi131Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi191Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi263Iron-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:Shew185_1751
OrganismiShewanella baltica (strain OS185)
Taxonomic identifieri402882 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaAlteromonadalesShewanellaceaeShewanella

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003816151 – 350Biotin synthaseAdd BLAST350

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA6WM55
SMRiA6WM55
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

HOGENOMiHOG000239957
KOiK01012
OMAiADRFCMG

Family and domain databases

Gene3Di3.20.20.701 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.

A6WM55-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSQLQVRHDW KREEIEALFA LPMNDLLFKA HSIHREVYDP NEVQISRLLS
60 70 80 90 100
IKTGACPEDC KYCPQSARYD TGLEKERLLA METVLTEARS AKAAGASRFC
110 120 130 140 150
MGAAWRNPKE KDMPYLKQMV QEVKALGMET CMTLGMLSED QANDLASAGL
160 170 180 190 200
DYYNHNLDTS PEYYGDVITT RTYQNRLDTL TNVRASGMKV CSGGIVGMGE
210 220 230 240 250
KATDRAGLLQ QLANLPQHPD SVPINMLVKV AGTPFEKLDD LDPLEFVRTI
260 270 280 290 300
AVARILMPLS RVRLSAGREN MSDELQAMCF FAGANSIFYG CKLLTTPNPE
310 320 330 340 350
ESDDMGLFRR LGLRPEQGAA AKLEEESAVL AKAAAYQDKS SAQFYDAGAL
Length:350
Mass (Da):38,783
Last modified:August 21, 2007 - v1
Checksum:i9B6A317D5553E1AC
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000753 Genomic DNA Translation: ABS07894.1
RefSeqiWP_006081265.1, NC_009665.1

Genome annotation databases

EnsemblBacteriaiABS07894; ABS07894; Shew185_1751
GeneIDi11772018
KEGGisbm:Shew185_1751

Similar proteinsi

Entry informationi

Entry nameiBIOB_SHEB8
AccessioniPrimary (citable) accession number: A6WM55
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: August 21, 2007
Last modified: November 22, 2017
This is version 69 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program