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A4SIY8 (LUXS_AERS4) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 41. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (1) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
S-ribosylhomocysteine lyase

EC=4.4.1.21
Alternative name(s):
AI-2 synthesis protein
Autoinducer-2 production protein LuxS
Gene names
Name:luxS
Ordered Locus Names:ASA_0697
OrganismAeromonas salmonicida (strain A449) [Complete proteome] [HAMAP]
Taxonomic identifier382245 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaAeromonadalesAeromonadaceaeAeromonas

Protein attributes

Sequence length169 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

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. HAMAP-Rule MF_00091

Catalytic activity

S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = L-homocysteine + (4S)-4,5-dihydroxypentan-2,3-dione. HAMAP-Rule MF_00091

Cofactor

Binds 1 iron ion per subunit By similarity. HAMAP-Rule MF_00091

Subunit structure

Homodimer By similarity. HAMAP-Rule MF_00091

Sequence similarities

Belongs to the LuxS family.

Ontologies

Keywords
   Biological processAutoinducer synthesis
Quorum sensing
   LigandIron
Metal-binding
   Molecular functionLyase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processquorum sensing

Inferred from electronic annotation. Source: UniProtKB-HAMAP

   Molecular_functionS-ribosylhomocysteine lyase activity

Inferred from electronic annotation. Source: UniProtKB-HAMAP

iron ion binding

Inferred from electronic annotation. Source: InterPro

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 169169S-ribosylhomocysteine lyase HAMAP-Rule MF_00091
PRO_0000297981

Sites

Metal binding541Iron By similarity
Metal binding581Iron By similarity
Metal binding1281Iron By similarity

Sequences

Sequence LengthMass (Da)Tools
A4SIY8 [UniParc].

Last modified May 15, 2007. Version 1.
Checksum: AF4C40294A63EF77

FASTA16918,791
        10         20         30         40         50         60 
MPLLDSFTVD HTRMEAPAVR VAKTMQTPNK DTITVFDLRF CVPNQEILSE RGIHTLEHLF 

        70         80         90        100        110        120 
AGFMRDHLNG NGVEIIDISP MGCRTGFYMS LIGAPDEARV GAAWQAAMSD VLTVQEQAKI 

       130        140        150        160 
PELNEYQCGT FSMHSLEEAH EIARNVLARG IGVNHNDELA LPEEKLKSL 

« Hide

References

[1]"The genome of Aeromonas salmonicida subsp. salmonicida A449: insights into the evolution of a fish pathogen."
Reith M.E., Singh R.K., Curtis B., Boyd J.M., Bouevitch A., Kimball J., Munholland J., Murphy C., Sarty D., Williams J., Nash J.H., Johnson S.C., Brown L.L.
BMC Genomics 9:427-427(2008) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: A449.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000644 Genomic DNA. Translation: ABO88860.1.
RefSeqYP_001140608.1. NC_009348.1.

3D structure databases

ProteinModelPortalA4SIY8.
SMRA4SIY8. Positions 3-161.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING382245.ASA_0697.

Proteomic databases

PRIDEA4SIY8.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABO88860; ABO88860; ASA_0697.
GeneID4997617.
KEGGasa:ASA_0697.
PATRIC20787724. VBIAerSal2987_0705.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG1854.
HOGENOMHOG000040371.
KOK07173.
OMARFKQPNQ.
OrthoDBEOG68WRBM.
ProtClustDBPRK02260.

Enzyme and pathway databases

BioCycASAL382245:GJJN-693-MONOMER.

Family and domain databases

Gene3D3.30.1360.80. 1 hit.
HAMAPMF_00091. LuxS.
InterProIPR011249. Metalloenz_LuxS/M16.
IPR003815. S-ribosylhomocysteinase.
[Graphical view]
PfamPF02664. LuxS. 1 hit.
[Graphical view]
PIRSFPIRSF006160. AI2. 1 hit.
PRINTSPR01487. LUXSPROTEIN.
ProDomPD013172. S-ribosylhomocysteinase. 1 hit.
[Graphical view] [Entries sharing at least one domain]
SUPFAMSSF63411. SSF63411. 1 hit.
ProtoNetSearch...

Entry information

Entry nameLUXS_AERS4
AccessionPrimary (citable) accession number: A4SIY8
Entry history
Integrated into UniProtKB/Swiss-Prot: August 21, 2007
Last sequence update: May 15, 2007
Last modified: April 16, 2014
This is version 41 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families