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Protein

Biotin synthase

Gene

bioB1

more
Organism
Neisseria meningitidis serogroup B (strain MC58)
Status
Reviewed-Annotation score: -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: biotin 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 (bioB1)
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)DescriptionActionsGraphical viewLength
Metal bindingi69Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi73Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi76Iron-sulfur 1 (4Fe-4S-S-AdoMet)UniRule annotation1
Metal bindingi113Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi144Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi204Iron-sulfur 2 (2Fe-2S)UniRule annotation1
Metal bindingi276Iron-sulfur 2 (2Fe-2S)UniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionTransferase
Biological processBiotin biosynthesis
Ligand2Fe-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 synthaseUniRule annotation (EC:2.8.1.6UniRule annotation)
Gene namesi
Name:bioB1UniRule annotation
Ordered Locus Names:NMB1146
AND
Name:bioB2UniRule annotation
Ordered Locus Names:NMB1184
OrganismiNeisseria meningitidis serogroup B (strain MC58)
Taxonomic identifieri122586 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaBetaproteobacteriaNeisserialesNeisseriaceaeNeisseria
Proteomesi
  • UP000000425 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003814971 – 350Biotin synthaseAdd BLAST350

Proteomic databases

PaxDbiQ9JRW7
PRIDEiQ9JRW7

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi122586.NMB1184

Structurei

3D structure databases

ProteinModelPortaliQ9JRW7
SMRiQ9JRW7
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

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

Phylogenomic databases

eggNOGiENOG4105CZF Bacteria
COG0502 LUCA
HOGENOMiHOG000239957
KOiK01012
OMAiADRFCMG
OrthoDBiPOG091H01DF

Family and domain databases

Gene3Di3.20.20.70, 1 hit
HAMAPiMF_01694 BioB, 1 hit
InterProiView protein in InterPro
IPR013785 Aldolase_TIM
IPR010722 BATS_dom
IPR034416 BATS_domain_containing
IPR002684 Biotin_synth/BioAB
IPR024177 Biotin_synthase
IPR006638 Elp3/MiaB/NifB
IPR007197 rSAM
PANTHERiPTHR22976 PTHR22976, 1 hit
PfamiView protein in Pfam
PF06968 BATS, 1 hit
PF04055 Radical_SAM, 1 hit
PIRSFiPIRSF001619 Biotin_synth, 1 hit
SFLDiSFLDF00272 biotin_synthase, 1 hit
SFLDG01060 BATS_domain_containing, 1 hit
SFLDG01278 biotin_synthase_like, 1 hit
SFLDS00029 Radical_SAM, 1 hit
SMARTiView protein in SMART
SM00876 BATS, 1 hit
SM00729 Elp3, 1 hit
TIGRFAMsiTIGR00433 bioB, 1 hit

Sequencei

Sequence statusi: Complete.

Q9JRW7-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MTVSPVALRR KTECKPHPTA RYWKKCDVEA LFGLPFLDLI YQAAEIHRQN
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 IHTRQHEDRM DTLGKVRNAG
210 220 230 240 250
LKVCCGGIVG MNETRAERAG LIASLANLDP QPESVPINRL VKVEGTPLAD
260 270 280 290 300
AEDLDWTEFV RTIAVARITM PQSYVRLSAG RSNMPEAMQA MCFMAGANSI
310 320 330 340 350
FYGDKLLTTG NPDEDGDRIL MEKLNLYPLQ FEPEGEVAEV EKASGIKVDY
Length:350
Mass (Da):38,793
Last modified:October 1, 2000 - v1
Checksum:iC01D0E11020FFED5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE002098 Genomic DNA Translation: AAF41533.1
AE002098 Genomic DNA Translation: AAF41568.1
PIRiA81117
RefSeqiNP_274174.1, NC_003112.2
NP_274210.1, NC_003112.2
WP_002217196.1, NC_003112.2

Genome annotation databases

EnsemblBacteriaiAAF41533; AAF41533; NMB1146
AAF41568; AAF41568; NMB1184
GeneIDi903567
903604
KEGGinme:NMB1146
nme:NMB1184
PATRICifig|122586.8.peg.1450

Similar proteinsi

Entry informationi

Entry nameiBIOB_NEIMB
AccessioniPrimary (citable) accession number: Q9JRW7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: October 1, 2000
Last modified: May 23, 2018
This is version 106 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

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