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Protein

Biotin synthase

Gene

bioB

Organism
Neisseria meningitidis serogroup C (strain 053442)
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

Pathway:ibiotin 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)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi69 – 691Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi73 – 731Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi76 – 761Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation
Metal bindingi113 – 1131Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi144 – 1441Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi204 – 2041Iron-sulfur 2 (2Fe-2S)UniRule annotation
Metal bindingi276 – 2761Iron-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

BioCyciNMEN374833:GJ7Z-1064-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:NMCC_1066
OrganismiNeisseria meningitidis serogroup C (strain 053442)
Taxonomic identifieri374833 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaBetaproteobacteriaNeisserialesNeisseriaceaeNeisseria
ProteomesiUP000001177 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 350350Biotin synthasePRO_0000381495Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA9LZ69.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239957.
KOiK01012.
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.

A9LZ69-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTVSPVALRR KTECKPHPTA RYWKKCDVEA LFGLPFLELV HQAAEVHRQN
60 70 80 90 100
FNPREIQLST LLSIKTGGCP EDCAYCPQSA HHNTNLGKEQ MMDVDEIVEK
110 120 130 140 150
AKIAKSRGAS RFCMGAAWRG PKPKDVETVS AIIKAVKGLG METCGTFGML
160 170 180 190 200
EEGMAEDLKE AGLDYYNHNL DTDPDRYNDI IHTRRHEDRM DTLGKVRNAG
210 220 230 240 250
LKVCCGGIVG MNETRAERAG LIASLANLDP QPESVPINRL VKVEGTPLDD
260 270 280 290 300
AEDLDWTEFV RTIAVARITM PQSYVRLSAG RSNMPEAMQA MCFMAGANSI
310 320 330 340 350
FYGDKLLTTG NPDEDGDRIL MEKLNLYPLQ FELEGEVAEV EKASGIKVDY
Length:350
Mass (Da):38,841
Last modified:July 28, 2009 - v2
Checksum:iF6B3CA7F34063B3A
GO

Sequence cautioni

The sequence ABX73246.1 differs from that shown. Reason: Erroneous initiation. Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000381 Genomic DNA. Translation: ABX73246.1. Different initiation.
RefSeqiWP_002239073.1. NC_010120.1.

Genome annotation databases

EnsemblBacteriaiABX73246; ABX73246; NMCC_1066.
KEGGinmn:NMCC_1066.
PATRICi20346750. VBINeiMen117761_1294.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000381 Genomic DNA. Translation: ABX73246.1. Different initiation.
RefSeqiWP_002239073.1. NC_010120.1.

3D structure databases

ProteinModelPortaliA9LZ69.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABX73246; ABX73246; NMCC_1066.
KEGGinmn:NMCC_1066.
PATRICi20346750. VBINeiMen117761_1294.

Phylogenomic databases

eggNOGiCOG0502.
HOGENOMiHOG000239957.
KOiK01012.
OrthoDBiEOG622PMP.

Enzyme and pathway databases

UniPathwayiUPA00078; UER00162.
BioCyciNMEN374833:GJ7Z-1064-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. "Characterization of ST-4821 complex, a unique Neisseria meningitidis clone."
    Peng J., Yang L., Yang F., Yang J., Yan Y., Nie H., Zhang X., Xiong Z., Jiang Y., Cheng F., Xu X., Chen S., Sun L., Li W., Shen Y., Shao Z., Liang X., Xu J., Jin Q.
    Genomics 91:78-87(2008) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: 053442.

Entry informationi

Entry nameiBIOB_NEIM0
AccessioniPrimary (citable) accession number: A9LZ69
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: July 28, 2009
Last modified: July 22, 2015
This is version 57 of the entry and version 2 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.