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Q12QK7 (LUXS_SHEDO) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 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:Sden_0981
OrganismShewanella denitrificans (strain OS217 / ATCC BAA-1090 / DSM 15013) [Complete proteome] [HAMAP]
Taxonomic identifier318161 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaAlteromonadalesShewanellaceaeShewanella

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_0000298023

Sites

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

Sequences

Sequence LengthMass (Da)Tools
Q12QK7 [UniParc].

Last modified August 22, 2006. Version 1.
Checksum: 4B10E8C90849F4B9

FASTA16918,711
        10         20         30         40         50         60 
MPLLDSFTVD HTRMQAPAVR VAKQMNTPKG DAITVFDLRF CVPNKAILSE RGIHTLEHLF 

        70         80         90        100        110        120 
AGFMRNHLNS ESVEVIDISP MGCRTGFYMS LIGTPKEQEV ANAWLHAMED VLQVTKQEDI 

       130        140        150        160 
PELNEFQCGT FEMHSLPQAK AIAQDIISAG IGVNQNAELT LDESLLSKG 

« Hide

References

[1]"Complete sequence of Shewanella denitrificans OS217."
US DOE Joint Genome Institute
Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Kiss H., Schmutz J. expand/collapse author list , Larimer F., Land M., Hauser L., Kyrpides N., Lykidis A., Richardson P.
Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: OS217 / ATCC BAA-1090 / DSM 15013.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000302 Genomic DNA. Translation: ABE54269.1.
RefSeqYP_561992.1. NC_007954.1.

3D structure databases

ProteinModelPortalQ12QK7.
SMRQ12QK7. Positions 3-162.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING318161.Sden_0981.

Proteomic databases

PRIDEQ12QK7.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABE54269; ABE54269; Sden_0981.
GeneID4016751.
KEGGsdn:Sden_0981.
PATRIC23487682. VBISheDen79529_1041.

Organism-specific databases

CMRSearch...

Phylogenomic databases

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

Enzyme and pathway databases

BioCycSDEN318161:GHKQ-1013-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_SHEDO
AccessionPrimary (citable) accession number: Q12QK7
Entry history
Integrated into UniProtKB/Swiss-Prot: August 21, 2007
Last sequence update: August 22, 2006
Last modified: April 16, 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