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A6Q6Q3 (LUXS_SULNB) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 44. 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:SUN_0202
OrganismSulfurovum sp. (strain NBC37-1) [Complete proteome] [HAMAP]
Taxonomic identifier387093 [NCBI]
Taxonomic lineageBacteriaProteobacteriaEpsilonproteobacteriaSulfurovum

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_1000004850

Sites

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

Sequences

Sequence LengthMass (Da)Tools
A6Q6Q3 [UniParc].

Last modified August 21, 2007. Version 1.
Checksum: 723AC6300BD06352

FASTA16919,117
        10         20         30         40         50         60 
MPLLDSFTVD HTRMIAPAVR VAKRMKTPCG DDITVFDLRF CKPNEERMPS KGIHTLEHLF 

        70         80         90        100        110        120 
AGFMREHLNS KKVEIIDISP MGCRTGFYMS LLGTPKPKRV AKAWAASMKD VLNVKSQKDI 

       130        140        150        160 
PELNVYQCGS YKMHSLKEAK EIAQNVLDRG IGIMNNKKLK LSKKLLKGL 

« Hide

References

[1]"Deep-sea vent epsilon-proteobacterial genomes provide insights into emergence of pathogens."
Nakagawa S., Takaki Y., Shimamura S., Reysenbach A.-L., Takai K., Horikoshi K.
Proc. Natl. Acad. Sci. U.S.A. 104:12146-12150(2007) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: NBC37-1.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AP009179 Genomic DNA. Translation: BAF71162.1.
RefSeqYP_001357519.1. NC_009663.1.

3D structure databases

ProteinModelPortalA6Q6Q3.
SMRA6Q6Q3. Positions 3-161.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING387093.SUN_0202.

Proteomic databases

PRIDEA6Q6Q3.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaBAF71162; BAF71162; SUN_0202.
GeneID5361793.
KEGGsun:SUN_0202.
PATRIC23773341. VBISulSp49917_0204.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG1854.
HOGENOMHOG000040371.
KOK07173.
OMARDHLNSD.
OrthoDBEOG68WRBM.

Enzyme and pathway databases

BioCycSSP387093:GH25-211-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_SULNB
AccessionPrimary (citable) accession number: A6Q6Q3
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: August 21, 2007
Last modified: May 14, 2014
This is version 44 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