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Q04MC2 (LUXS_STRP2) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 48. 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:SPD_0309
OrganismStreptococcus pneumoniae serotype 2 (strain D39 / NCTC 7466) [Complete proteome] [HAMAP]
Taxonomic identifier373153 [NCBI]
Taxonomic lineageBacteriaFirmicutesBacilliLactobacillalesStreptococcaceaeStreptococcus

Protein attributes

Sequence length160 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 – 160160S-ribosylhomocysteine lyase HAMAP-Rule MF_00091
PRO_0000298041

Sites

Metal binding571Iron By similarity
Metal binding611Iron By similarity
Metal binding1271Iron By similarity

Sequences

Sequence LengthMass (Da)Tools
Q04MC2 [UniParc].

Last modified November 14, 2006. Version 1.
Checksum: 4992A6E764A4D324

FASTA16017,923
        10         20         30         40         50         60 
MSKEVIVESF ELDHTIVKAP YVRLIGEETG PKGDIISNYD IRLVQPNEDS IPTAGLHTIE 

        70         80         90        100        110        120 
HLLAKLIRTR IDGMIDCSPF GCRTGFHMIM WGRHTSAKIA AVIKDSLKEI AETTTWEDVP 

       130        140        150        160 
GTTIESCGNY KDHSLFSAKE WAKLILEQGI SDDAFERHVI 

« Hide

References

[1]"Genome sequence of Avery's virulent serotype 2 strain D39 of Streptococcus pneumoniae and comparison with that of unencapsulated laboratory strain R6."
Lanie J.A., Ng W.-L., Kazmierczak K.M., Andrzejewski T.M., Davidsen T.M., Wayne K.J., Tettelin H., Glass J.I., Winkler M.E.
J. Bacteriol. 189:38-51(2007) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: D39 / NCTC 7466.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000410 Genomic DNA. Translation: ABJ54495.1.
RefSeqYP_815826.1. NC_008533.1.

3D structure databases

ProteinModelPortalQ04MC2.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING373153.SPD_0309.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABJ54495; ABJ54495; SPD_0309.
GeneID4441459.
KEGGspd:SPD_0309.
PATRIC19681616. VBIStrPne27904_0346.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG1854.
HOGENOMHOG000040372.
KOK07173.
OMARDHLNSD.
OrthoDBEOG68WRBM.

Enzyme and pathway databases

BioCycSPNE373153:GIX6-309-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_STRP2
AccessionPrimary (citable) accession number: Q04MC2
Entry history
Integrated into UniProtKB/Swiss-Prot: August 21, 2007
Last sequence update: November 14, 2006
Last modified: May 14, 2014
This is version 48 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