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Protein

S-ribosylhomocysteine lyase

Gene

luxS

Organism
Vibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)
Status
Reviewed-Annotation score: 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).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

Fe cationUniRule annotationNote: Binds 1 Fe cation per subunit.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi54 – 541IronUniRule annotation
Metal bindingi58 – 581IronUniRule annotation
Metal bindingi128 – 1281IronUniRule annotation

GO - Molecular functioni

GO - Biological processi

  • quorum sensing Source: TIGR
Complete GO annotation...

Keywords - Molecular functioni

Lyase

Keywords - Biological processi

Autoinducer synthesis, Quorum sensing

Keywords - Ligandi

Iron, Metal-binding

Enzyme and pathway databases

BioCyciVCHO:VC0557-MONOMER.
BRENDAi4.4.1.21. 6626.

Names & Taxonomyi

Protein namesi
Recommended name:
S-ribosylhomocysteine lyaseUniRule annotation (EC:4.4.1.21UniRule annotation)
Alternative name(s):
AI-2 synthesis proteinUniRule annotation
Autoinducer-2 production protein LuxSUniRule annotation
Gene namesi
Name:luxSUniRule annotation
Ordered Locus Names:VC_0557
OrganismiVibrio cholerae serotype O1 (strain ATCC 39315 / El Tor Inaba N16961)
Taxonomic identifieri243277 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaVibrionalesVibrionaceaeVibrio
ProteomesiUP000000584 Componenti: Chromosome 1

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 172171S-ribosylhomocysteine lyasePRO_0000172274Add
BLAST

Proteomic databases

PRIDEiQ9KUG4.

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi243277.VC0557.

Structurei

3D structure databases

ProteinModelPortaliQ9KUG4.
SMRiQ9KUG4. Positions 3-161.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LuxS family.UniRule annotation

Phylogenomic databases

eggNOGiCOG1854.
KOiK07173.
OMAiAGFMREH.
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.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q9KUG4-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MPLLDSFTVD HTRMNAPAVR VAKTMQTPKG DTITVFDLRF TMPNKDILSE
60 70 80 90 100
RGIHTLEHLY AGFMRNHLNG SQVEIIDISP MGCRTGFYMS LIGAPTEQQV
110 120 130 140 150
AQAWLAAMQD VLKVESQEQI PELNEYQCGT AAMHSLEEAK AIAKNVIAAG
160 170
ISVNRNDELA LPESMLNELK VH
Length:172
Mass (Da):19,081
Last modified:January 23, 2007 - v3
Checksum:i6D481F831DBB65AF
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE003852 Genomic DNA. Translation: AAF93725.1.
PIRiF82309.
RefSeqiNP_230208.1. NC_002505.1.
WP_001130227.1. NC_002505.1.

Genome annotation databases

EnsemblBacteriaiAAF93725; AAF93725; VC_0557.
GeneIDi2615234.
KEGGivch:VC0557.
PATRICi20080232. VBIVibCho83274_0532.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE003852 Genomic DNA. Translation: AAF93725.1.
PIRiF82309.
RefSeqiNP_230208.1. NC_002505.1.
WP_001130227.1. NC_002505.1.

3D structure databases

ProteinModelPortaliQ9KUG4.
SMRiQ9KUG4. Positions 3-161.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi243277.VC0557.

Proteomic databases

PRIDEiQ9KUG4.

Protocols and materials databases

DNASUi2615234.
Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAF93725; AAF93725; VC_0557.
GeneIDi2615234.
KEGGivch:VC0557.
PATRICi20080232. VBIVibCho83274_0532.

Phylogenomic databases

eggNOGiCOG1854.
KOiK07173.
OMAiAGFMREH.
OrthoDBiEOG68WRBM.

Enzyme and pathway databases

BioCyciVCHO:VC0557-MONOMER.
BRENDAi4.4.1.21. 6626.

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.
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 39315 / El Tor Inaba N16961.

Entry informationi

Entry nameiLUXS_VIBCH
AccessioniPrimary (citable) accession number: Q9KUG4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: June 6, 2002
Last sequence update: January 23, 2007
Last modified: July 22, 2015
This is version 84 of the entry and version 3 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. 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.