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Protein

Biotin synthase

Gene

bioB

Organism
Chlorobium limicola (strain DSM 245 / NBRC 103803)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-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 = biotin + (sulfur carrier) + 2 L-methionine + 2 5'-deoxyadenosine.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

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi73 – 731Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi77 – 771Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi80 – 801Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi152 – 1521Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi213 – 2131Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi283 – 2831Iron-sulfur 2 (2Fe-2S)UniRule annotation

GO - Molecular functioni

  1. 2 iron, 2 sulfur cluster binding Source: UniProtKB-KW
  2. 4 iron, 4 sulfur cluster binding Source: UniProtKB-KW
  3. biotin synthase activity Source: UniProtKB-HAMAP
  4. iron ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. biotin biosynthetic process Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Transferase

Keywords - Biological processi

Biotin biosynthesis

Keywords - Ligandi

2Fe-2S, 4Fe-4S, Iron, Iron-sulfur, Metal-binding, S-adenosyl-L-methionine

Enzyme and pathway databases

BioCyciCLIM290315:GHUH-2481-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:Clim_2430
OrganismiChlorobium limicola (strain DSM 245 / NBRC 103803)
Taxonomic identifieri290315 [NCBI]
Taxonomic lineageiBacteriaChlorobiChlorobiaChlorobialesChlorobiaceaeChlorobium/Pelodictyon groupChlorobium
ProteomesiUP000008841: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 336336Biotin synthasePRO_0000381299Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi290315.Clim_2430.

Structurei

3D structure databases

ProteinModelPortaliB3EI42.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiYNINIQV.
OrthoDBiEOG622PMP.

Family and domain databases

Gene3Di3.20.20.70. 1 hit.
HAMAPiMF_01694. BioB.
InterProiIPR013785. Aldolase_TIM.
IPR010722. BATS_dom.
IPR002684. Biotin_synth/BioAB.
IPR024177. Biotin_synthase.
IPR006638. Elp3/MiaB/NifB.
IPR007197. rSAM.
[Graphical view]
PfamiPF06968. BATS. 1 hit.
PF04055. Radical_SAM. 1 hit.
[Graphical view]
PIRSFiPIRSF001619. Biotin_synth. 1 hit.
SMARTiSM00876. BATS. 1 hit.
SM00729. Elp3. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00433. bioB. 1 hit.

Sequencei

Sequence statusi: Complete.

B3EI42-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MTSSVIHQAV IDAYRVLDTG EPLDRETALR LAALPGDAVL DLASLAHKVR
60 70 80 90 100
LRYAGEAASL HACSIMNAKS GECGENCRFC AQSRHNSASI DVYDLAGEDA
110 120 130 140 150
VLRQAEEAVD SGIPHFGIVT SGYGYLKITP EFNRILGMID MLHRELPGLN
160 170 180 190 200
VCASLGVLGE ETSAALAAHG IAHYNINIQV APSRYSDLIA DTHTVVERIA
210 220 230 240 250
TVRLLRKHRI PVCCGGILGV GESMTERLEM IFALSELDVS VIPLNVLVPI
260 270 280 290 300
DGTPLEGHRT ADIADIVKTF AICRLVHPRT IIKFAAGRET VMKDFQGLLM
310 320 330
LSGANGFLTG GYLTTRGREI DADRELGRQL ESFTEG
Length:336
Mass (Da):36,276
Last modified:July 22, 2008 - v1
Checksum:iB47D2F612627DE15
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001097 Genomic DNA. Translation: ACD91451.1.
RefSeqiWP_012467316.1. NC_010803.1.
YP_001944430.1. NC_010803.1.

Genome annotation databases

EnsemblBacteriaiACD91451; ACD91451; Clim_2430.
GeneIDi6355901.
KEGGicli:Clim_2430.
PATRICi21377195. VBIChlLim118737_2615.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001097 Genomic DNA. Translation: ACD91451.1.
RefSeqiWP_012467316.1. NC_010803.1.
YP_001944430.1. NC_010803.1.

3D structure databases

ProteinModelPortaliB3EI42.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi290315.Clim_2430.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACD91451; ACD91451; Clim_2430.
GeneIDi6355901.
KEGGicli:Clim_2430.
PATRICi21377195. VBIChlLim118737_2615.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiYNINIQV.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciCLIM290315:GHUH-2481-MONOMER.

Family and domain databases

Gene3Di3.20.20.70. 1 hit.
HAMAPiMF_01694. BioB.
InterProiIPR013785. Aldolase_TIM.
IPR010722. BATS_dom.
IPR002684. Biotin_synth/BioAB.
IPR024177. Biotin_synthase.
IPR006638. Elp3/MiaB/NifB.
IPR007197. rSAM.
[Graphical view]
PfamiPF06968. BATS. 1 hit.
PF04055. Radical_SAM. 1 hit.
[Graphical view]
PIRSFiPIRSF001619. Biotin_synth. 1 hit.
SMARTiSM00876. BATS. 1 hit.
SM00729. Elp3. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00433. bioB. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: DSM 245 / NBRC 103803.

Entry informationi

Entry nameiBIOB_CHLL2
AccessioniPrimary (citable) accession number: B3EI42
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: July 22, 2008
Last modified: February 4, 2015
This is version 49 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

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

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.