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B0TE53 (BIOB_HELMI) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 43. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Biotin synthase

EC=2.8.1.6
Gene names
Name:bioB
Ordered Locus Names:Helmi_16230
ORF Names:HM1_1678
OrganismHeliobacterium modesticaldum (strain ATCC 51547 / Ice1) [Complete proteome] [HAMAP]
Taxonomic identifier498761 [NCBI]
Taxonomic lineageBacteriaFirmicutesClostridiaClostridialesHeliobacteriaceaeHeliobacterium

Protein attributes

Sequence length326 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Catalyzes the conversion of dethiobiotin (DTB) to biotin by the insertion of a sulfur atom into dethiobiotin via a radical-based mechanism By similarity. HAMAP-Rule MF_01694

Catalytic activity

Dethiobiotin + sulfur-(sulfur carrier) + 2 S-adenosyl-L-methionine = biotin + (sulfur carrier) + 2 L-methionine + 2 5'-deoxyadenosine. HAMAP-Rule MF_01694

Cofactor

Binds 1 4Fe-4S cluster. The cluster is coordinated with 3 cysteines and an exchangeable S-adenosyl-L-methionine By similarity.

Binds 1 2Fe-2S cluster. The cluster is coordinated with 3 cysteines and 1 arginine By similarity.

Pathway

Cofactor biosynthesis; biotin biosynthesis; biotin from 7,8-diaminononanoate: step 2/2. HAMAP-Rule MF_01694

Subunit structure

Homodimer By similarity. HAMAP-Rule MF_01694

Sequence similarities

Belongs to the radical SAM superfamily. Biotin synthase family.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 326326Biotin synthase HAMAP-Rule MF_01694
PRO_0000381424

Sites

Metal binding661Iron-sulfur 1 (4Fe-4S-S-AdoMet) By similarity
Metal binding701Iron-sulfur 1 (4Fe-4S-S-AdoMet) By similarity
Metal binding731Iron-sulfur 1 (4Fe-4S-S-AdoMet) By similarity
Metal binding1101Iron-sulfur 2 (2Fe-2S) By similarity
Metal binding1421Iron-sulfur 2 (2Fe-2S) By similarity
Metal binding2021Iron-sulfur 2 (2Fe-2S) By similarity
Metal binding2721Iron-sulfur 2 (2Fe-2S) By similarity

Sequences

Sequence LengthMass (Da)Tools
B0TE53 [UniParc].

Last modified April 8, 2008. Version 1.
Checksum: 61AD510FBB26A0B6

FASTA32635,455
        10         20         30         40         50         60 
MQSIIRQTEA ALFAGAVLDR ETAGKLARIE GSDIYTLMDV ARRVRDHFGA GKVDLCSIVN 

        70         80         90        100        110        120 
AKSGACSEDC RFCAQSAHHQ ACVKTYDLLD PDAIVGRARV MEAEGAHRFS LVTSGRGMSD 

       130        140        150        160        170        180 
AELEPVLAIY ERLRRETKLS LCASLGILNE AQLRRLAEAG VTMYHHNLEA SRRFFPQICT 

       190        200        210        220        230        240 
THSYDERIAT IRAAQAAGMV VCSGGIFSMG ETIDDRIDMA FELRELGIRS VPINILNPIA 

       250        260        270        280        290        300 
GTPLEGQPLI PPLEILKSIA LYRLILPSAR IRMAGGREGA LRDLQSLPFI AGADAALVGS 

       310        320 
YLTTSGRTVA EDIQMLRDLG LNVNNL 

« Hide

References

[1]"The genome of Heliobacterium modesticaldum, a phototrophic representative of the Firmicutes containing the simplest photosynthetic apparatus."
Sattley W.M., Madigan M.T., Swingley W.D., Cheung P.C., Clocksin K.M., Conrad A.L., Dejesa L.C., Honchak B.M., Jung D.O., Karbach L.E., Kurdoglu A., Lahiri S., Mastrian S.D., Page L.E., Taylor H.L., Wang Z.T., Raymond J., Chen M., Blankenship R.E., Touchman J.W.
J. Bacteriol. 190:4687-4696(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: ATCC 51547 / Ice1.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000930 Genomic DNA. Translation: ABZ84248.1.
RefSeqYP_001680259.1. NC_010337.2.

3D structure databases

ProteinModelPortalB0TE53.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING498761.HM1_1678.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABZ84248; ABZ84248; HM1_1678.
GeneID5911151.
KEGGhmo:HM1_1678.
PATRIC22107469. VBIHelMod36755_1508.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0502.
HOGENOMHOG000239958.
KOK01012.
OMATCENTLR.
OrthoDBEOG622PMP.

Enzyme and pathway databases

BioCycHMOD498761:GI46-1670-MONOMER.
UniPathwayUPA00078; UER00162.

Family and domain databases

Gene3D3.20.20.70. 1 hit.
HAMAPMF_01694. BioB.
InterProIPR013785. Aldolase_TIM.
IPR010722. BATS_dom.
IPR002684. Biotin_synth/BioAB.
IPR024177. Biotin_synthase.
IPR006638. Elp3/MiaB/NifB.
IPR007197. rSAM.
[Graphical view]
PfamPF06968. BATS. 1 hit.
PF04055. Radical_SAM. 1 hit.
[Graphical view]
PIRSFPIRSF001619. Biotin_synth. 1 hit.
SMARTSM00876. BATS. 1 hit.
SM00729. Elp3. 1 hit.
[Graphical view]
TIGRFAMsTIGR00433. bioB. 1 hit.
ProtoNetSearch...

Entry information

Entry nameBIOB_HELMI
AccessionPrimary (citable) accession number: B0TE53
Entry history
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: April 8, 2008
Last modified: May 14, 2014
This is version 43 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways