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B5Z9N6

- LUXS_HELPG

UniProt

B5Z9N6 - LUXS_HELPG

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Protein
S-ribosylhomocysteine lyase
Gene
luxS, HPG27_97
Organism
Helicobacter pylori (strain G27)
Status
Reviewed - Annotation score: 3 out of 5 - Protein inferred from homologyi

Functioni

Involved in the synthesis of autoinducer 2 (AI-2) which is secreted by bacteria and is used to communicate both the cell density and the metabolic potential of the environment. The regulation of gene expression in response to changes in cell density is called quorum sensing. Catalyzes the transformation of S-ribosylhomocysteine (RHC) to homocysteine (HC) and 4,5-dihydroxy-2,3-pentadione (DPD) By similarity.UniRule annotation

Catalytic activityi

S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = L-homocysteine + (4S)-4,5-dihydroxypentan-2,3-dione.UniRule annotation

Cofactori

Binds 1 iron ion per subunit By similarity.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi58 – 581Iron By similarity
Metal bindingi62 – 621Iron By similarity
Metal bindingi125 – 1251Iron By similarity

GO - Molecular functioni

  1. S-ribosylhomocysteine lyase activity Source: UniProtKB-HAMAP
  2. iron ion binding Source: InterPro

GO - Biological processi

  1. quorum sensing Source: UniProtKB-HAMAP
Complete GO annotation...

Keywords - Molecular functioni

Lyase

Keywords - Biological processi

Autoinducer synthesis, Quorum sensing

Keywords - Ligandi

Iron, Metal-binding

Enzyme and pathway databases

BioCyciHPYL563041:GC38-104-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
S-ribosylhomocysteine lyase (EC:4.4.1.21)
Alternative name(s):
AI-2 synthesis protein
Autoinducer-2 production protein LuxS
Gene namesi
Name:luxS
Ordered Locus Names:HPG27_97
OrganismiHelicobacter pylori (strain G27)
Taxonomic identifieri563041 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaEpsilonproteobacteriaCampylobacteralesHelicobacteraceaeHelicobacter
ProteomesiUP000001735: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 155155S-ribosylhomocysteine lyaseUniRule annotation
PRO_1000093310Add
BLAST

Interactioni

Subunit structurei

Homodimer By similarity.UniRule annotation

Protein-protein interaction databases

STRINGi563041.HPG27_97.

Family & Domainsi

Sequence similaritiesi

Belongs to the LuxS family.

Phylogenomic databases

eggNOGiCOG1854.
HOGENOMiHOG000040372.
KOiK07173.
OMAiRDHLNSD.
OrthoDBiEOG68WRBM.

Family and domain databases

Gene3Di3.30.1360.80. 1 hit.
HAMAPiMF_00091. LuxS.
InterProiIPR011249. Metalloenz_LuxS/M16.
IPR003815. S-ribosylhomocysteinase.
[Graphical view]
PfamiPF02664. LuxS. 1 hit.
[Graphical view]
PIRSFiPIRSF006160. AI2. 1 hit.
PRINTSiPR01487. LUXSPROTEIN.
ProDomiPD013172. S-ribosylhomocysteinase. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMiSSF63411. SSF63411. 1 hit.

Sequencei

Sequence statusi: Complete.

B5Z9N6-1 [UniParc]FASTAAdd to Basket

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MKTPKMNVES FNLDHTKVKA PYVRIADRKK GVNGDLIIKY DVRFKQPNQD    50
HMDMPSLHSL EHLVAEIIRN HANYVVDWSP MGCQTGFYLT VLNHDNYTEI 100
LEVLEKTMQD VLKATEVPAS NEKQCGWAAN HTLEGAKNLA RAFLDKRAEW 150
SEVGV 155
Length:155
Mass (Da):17,709
Last modified:November 25, 2008 - v1
Checksum:i3489DB7E47AD4D81
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001173 Genomic DNA. Translation: ACI26866.1.
RefSeqiWP_000856632.1. NC_011333.1.
YP_002265732.1. NC_011333.1.

Genome annotation databases

EnsemblBacteriaiACI26866; ACI26866; HPG27_97.
GeneIDi6962981.
KEGGihpg:HPG27_97.
PATRICi20598098. VBIHelPyl113476_0111.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP001173 Genomic DNA. Translation: ACI26866.1 .
RefSeqi WP_000856632.1. NC_011333.1.
YP_002265732.1. NC_011333.1.

3D structure databases

ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 563041.HPG27_97.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ACI26866 ; ACI26866 ; HPG27_97 .
GeneIDi 6962981.
KEGGi hpg:HPG27_97.
PATRICi 20598098. VBIHelPyl113476_0111.

Phylogenomic databases

eggNOGi COG1854.
HOGENOMi HOG000040372.
KOi K07173.
OMAi RDHLNSD.
OrthoDBi EOG68WRBM.

Enzyme and pathway databases

BioCyci HPYL563041:GC38-104-MONOMER.

Family and domain databases

Gene3Di 3.30.1360.80. 1 hit.
HAMAPi MF_00091. LuxS.
InterProi IPR011249. Metalloenz_LuxS/M16.
IPR003815. S-ribosylhomocysteinase.
[Graphical view ]
Pfami PF02664. LuxS. 1 hit.
[Graphical view ]
PIRSFi PIRSF006160. AI2. 1 hit.
PRINTSi PR01487. LUXSPROTEIN.
ProDomi PD013172. S-ribosylhomocysteinase. 1 hit.
[Graphical view ] [Entries sharing at least one domain ]
SUPFAMi SSF63411. SSF63411. 1 hit.
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: G27.

Entry informationi

Entry nameiLUXS_HELPG
AccessioniPrimary (citable) accession number: B5Z9N6
Entry historyi
Integrated into UniProtKB/Swiss-Prot: March 24, 2009
Last sequence update: November 25, 2008
Last modified: September 3, 2014
This is version 41 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. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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