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Protein

Biotin synthase

Gene

bioB

Organism
Cupriavidus taiwanensis (strain DSM 17343 / BCRC 17206 / CIP 107171 / LMG 19424 / R1) (Ralstonia taiwanensis (strain LMG 19424))
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 bindingi76Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi80Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi83Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi120Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi151Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi211Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi283Iron-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

BioCyciCTAI977880:G1GJV-125-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:RALTA_A0126
OrganismiCupriavidus taiwanensis (strain DSM 17343 / BCRC 17206 / CIP 107171 / LMG 19424 / R1) (Ralstonia taiwanensis (strain LMG 19424))
Taxonomic identifieri977880 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaBetaproteobacteriaBurkholderialesBurkholderiaceaeCupriavidus
Proteomesi
  • UP000001692 Componenti: Chromosome 1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003813361 – 340Biotin synthaseAdd BLAST340

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi977880.RALTA_A0126

Structurei

3D structure databases

ProteinModelPortaliB2AGA0
SMRiB2AGA0
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

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.

B2AGA0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTQAHTVTTI SAESLRQTAR PHALPDDAKW RVDDVAALFA LPFNDLLFRA
60 70 80 90 100
QQVHREHFDA NTVQLSTLLS IKTGGCEEDC GYCPQSAHHD AGVKAEKLMA
110 120 130 140 150
LEEVLDAARA AKANGATRFC MGAAWRSPKD RHLEPVMDMV REVKAMGLET
160 170 180 190 200
CVTLGMLKAE QAQQLKEAGL DYYNHNLDTS PEFYGKIITT RTYQDRLDTI
210 220 230 240 250
GYVRDAGINV CCGGIVGMGE SREARAGLIA QLANMDPYPE SVPINNLVQV
260 270 280 290 300
EGTPLAGTEA LDPFEFVRTI AVARITMPRA MVRLSAGREA MDEALQALCF
310 320 330 340
MAGANSIFYG EKLLTTGNPQ ADRDRALLAR LDIRAEGYAG
Length:340
Mass (Da):37,164
Last modified:May 20, 2008 - v1
Checksum:iB376C88B8CF8FCF6
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CU633749 Genomic DNA Translation: CAP62799.1
RefSeqiWP_012351467.1, NC_010528.1

Genome annotation databases

EnsemblBacteriaiCAP62799; CAP62799; RALTA_A0126
GeneIDi29760646
KEGGicti:RALTA_A0126

Similar proteinsi

Entry informationi

Entry nameiBIOB_CUPTR
AccessioniPrimary (citable) accession number: B2AGA0
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: May 20, 2008
Last modified: April 25, 2018
This is version 70 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