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Protein

Biotin synthase

Gene

bioB

Organism
Helicobacter pylori (strain P12)
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 + 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

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi17 – 171Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi21 – 211Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi24 – 241Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi61 – 611Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi96 – 961Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi154 – 1541Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi221 – 2211Iron-sulfur 2 (2Fe-2S)UniRule annotation

GO - Molecular functioni

GO - Biological processi

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

BioCyciHPYL570508:GJ8D-1419-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:HPP12_1379
OrganismiHelicobacter pylori (strain P12)
Taxonomic identifieri570508 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaEpsilonproteobacteriaCampylobacteralesHelicobacteraceaeHelicobacter
ProteomesiUP000008198 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 282282Biotin synthasePRO_0000381425Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi570508.HPP12_1379.

Structurei

3D structure databases

ProteinModelPortaliB6JNP9.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiTCENTLR.
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.

B6JNP9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MQEIFLCSIS NVRSGDCKED CAYCTQSSHH QGAIKRYKFK DEKVVLQEAR
60 70 80 90 100
ALKQLGALGF CLVTSGRELD DEKCEYIAKL AKAINKEELG LHLIACCGRA
110 120 130 140 150
DLEQLEFLRD AGIHSYNHNL ETSQNFFPKI CSTHTWEERF ITCENALRAG
160 170 180 190 200
LGLCSGGIFG LNESWEDRIE MLRALASLSP HTTPINFFIK NPVLPIDAET
210 220 230 240 250
LSADEALECV LLAKEFLPNA RLMVAGGREV VFKDNDKQEA KLFEYGINAV
260 270 280
VLGDYLTTKG KAPKKDIEKL LSYGLTMATS CH
Length:282
Mass (Da):31,447
Last modified:December 16, 2008 - v1
Checksum:i20FEC6E10C10ECCD
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001217 Genomic DNA. Translation: ACJ08527.1.
RefSeqiWP_001155596.1. NC_011498.1.
YP_002302007.1. NC_011498.1.

Genome annotation databases

EnsemblBacteriaiACJ08527; ACJ08527; HPP12_1379.
KEGGihpp:HPP12_1379.
PATRICi20610873. VBIHelPyl2824_1451.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001217 Genomic DNA. Translation: ACJ08527.1.
RefSeqiWP_001155596.1. NC_011498.1.
YP_002302007.1. NC_011498.1.

3D structure databases

ProteinModelPortaliB6JNP9.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi570508.HPP12_1379.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACJ08527; ACJ08527; HPP12_1379.
KEGGihpp:HPP12_1379.
PATRICi20610873. VBIHelPyl2824_1451.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiTCENTLR.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciHPYL570508:GJ8D-1419-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. "The complete genome sequence of Helicobacter pylori strain P12."
    Fischer W., Windhager L., Karnholz A., Zeiller M., Zimmer R., Haas R.
    Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: P12.

Entry informationi

Entry nameiBIOB_HELP2
AccessioniPrimary (citable) accession number: B6JNP9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: December 16, 2008
Last modified: May 27, 2015
This is version 43 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.