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Protein

S-ribosylhomocysteine lyase

Gene

luxS

Organism
Lactobacillus reuteri (strain DSM 20016)
Status
Reviewed-Annotation score: Annotation score: 2 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 bindingi124 – 1241IronUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Lyase

Keywords - Biological processi

Autoinducer synthesis, Quorum sensing

Keywords - Ligandi

Iron, Metal-binding

Enzyme and pathway databases

BioCyciLREU557436:GC7Y-1669-MONOMER.

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:Lreu_1586
OrganismiLactobacillus reuteri (strain DSM 20016)
Taxonomic identifieri557436 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliLactobacillalesLactobacillaceaeLactobacillus
ProteomesiUP000001991 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 158158S-ribosylhomocysteine lyasePRO_1000057608Add
BLAST

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA5VLV3.
SMRiA5VLV3. Positions 3-150.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the LuxS family.UniRule annotation

Phylogenomic databases

eggNOGiCOG1854.
HOGENOMiHOG000040372.
KOiK07173.
OMAiKQPNQDH.
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.

A5VLV3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAKVESFTLD HTKVKAPYVR LITVEEGPKG DKISNYDLRL VQPNENAIPT
60 70 80 90 100
AGLHTIEHLL AGLLRDRLGG VIDCSPFGCR TGFHLITWGE HSTTEVAKAL
110 120 130 140 150
KSSLEEIAYK TKWEDVQGTT IESCGNYRDH SLFSAKEWSK KILDEGISDK

PFERHVVD
Length:158
Mass (Da):17,695
Last modified:July 10, 2007 - v1
Checksum:i183C7DDE02A81BD5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000705 Genomic DNA. Translation: ABQ83827.1.
RefSeqiWP_003668959.1. NC_009513.1.
YP_001272164.1. NC_009513.1.

Genome annotation databases

EnsemblBacteriaiABQ83827; ABQ83827; Lreu_1586.
GeneIDi5188910.
KEGGilre:Lreu_1586.
PATRICi22256432. VBILacReu87937_1604.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000705 Genomic DNA. Translation: ABQ83827.1.
RefSeqiWP_003668959.1. NC_009513.1.
YP_001272164.1. NC_009513.1.

3D structure databases

ProteinModelPortaliA5VLV3.
SMRiA5VLV3. Positions 3-150.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABQ83827; ABQ83827; Lreu_1586.
GeneIDi5188910.
KEGGilre:Lreu_1586.
PATRICi22256432. VBILacReu87937_1604.

Phylogenomic databases

eggNOGiCOG1854.
HOGENOMiHOG000040372.
KOiK07173.
OMAiKQPNQDH.
OrthoDBiEOG68WRBM.

Enzyme and pathway databases

BioCyciLREU557436:GC7Y-1669-MONOMER.

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: DSM 20016.

Entry informationi

Entry nameiLUXS_LACRD
AccessioniPrimary (citable) accession number: A5VLV3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 5, 2008
Last sequence update: July 10, 2007
Last modified: June 24, 2015
This is version 57 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, 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.