Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Biotin synthase 2

Gene

bioB2

Organism
Corynebacterium diphtheriae (strain ATCC 700971 / NCTC 13129 / Biotype gravis)
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 bindingi66 – 661Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi70 – 701Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi73 – 731Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi111 – 1111Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi143 – 1431Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi203 – 2031Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi273 – 2731Iron-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

UniPathwayiUPA00078; UER00162.

Names & Taxonomyi

Protein namesi
Recommended name:
Biotin synthase 2UniRule annotation (EC:2.8.1.6UniRule annotation)
Gene namesi
Name:bioB2UniRule annotation
Ordered Locus Names:DIP1124
OrganismiCorynebacterium diphtheriae (strain ATCC 700971 / NCTC 13129 / Biotype gravis)
Taxonomic identifieri257309 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaActinobacteridaeActinomycetalesCorynebacterineaeCorynebacteriaceaeCorynebacterium
ProteomesiUP000002198 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 330330Biotin synthase 2PRO_0000381326Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi257309.DIP1124.

Structurei

3D structure databases

ProteinModelPortaliQ6NHL3.
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.

Q6NHL3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTATLNTVQD LEASVLAGTA ITRDEALSLI DAPLDELSAA ADRIRAQMCG
60 70 80 90 100
DGFDMCSIIN AKSGRCPENC TFCAQSIRYP TISVDSYPLI TADELVRQAQ
110 120 130 140 150
ENKDKGVIRF SIVTSGRKLR RDEVRHICEG VRRIKQEVGI EVCISAGLLS
160 170 180 190 200
AEDFQALHDA GISRVHCNLE TSRAYFPSIC ISHTFDDKIA TLQAARDEGM
210 220 230 240 250
SLCSGGILGL GESMEDRIDM ALSARELGVN SFPVNVLVAI EGTPLAGTEQ
260 270 280 290 300
LRPEEVQRCV AIFRFILPQA AIRLAGGREL LGDDGKACFQ SGANSAISGD
310 320 330
MLTTTGTTIA SDMALVKDLG YTVTLDHSHS
Length:330
Mass (Da):35,447
Last modified:July 5, 2004 - v1
Checksum:i6A9E56A082D99217
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX248357 Genomic DNA. Translation: CAE49644.1.
RefSeqiNP_939481.1. NC_002935.2.
WP_010934821.1. NC_002935.2.

Genome annotation databases

GeneIDi23333321.
KEGGicdi:DIP1124.
PATRICi21483433. VBICorDip47633_1106.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BX248357 Genomic DNA. Translation: CAE49644.1.
RefSeqiNP_939481.1. NC_002935.2.
WP_010934821.1. NC_002935.2.

3D structure databases

ProteinModelPortaliQ6NHL3.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi257309.DIP1124.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi23333321.
KEGGicdi:DIP1124.
PATRICi21483433. VBICorDip47633_1106.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239958.
KOiK01012.
OMAiYNINIQV.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.

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: ATCC 700971 / NCTC 13129 / Biotype gravis.

Entry informationi

Entry nameiBIOB2_CORDI
AccessioniPrimary (citable) accession number: Q6NHL3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: July 5, 2004
Last modified: April 1, 2015
This is version 81 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, Reference 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.