LuxS

• Description: S-ribosylhomocysteine lyase, autoinducer-2 production protein, required for swarming motility and the formation of biofilms
  
  

Gene name	luxS
Synonyms	ytjB
Essential	no
Product	S-ribosylhomocysteine lyase
Function	methionine salvage
Metabolic function and regulation of this protein in SubtiPathways: Cys, Met & Sulfate assimilation
MW, pI	17 kDa, 5.168
Gene length, protein length	471 bp, 157 aa
Immediate neighbours	ytkA, ytjA
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU30670

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

Categories containing this gene/protein

biosynthesis/ acquisition of amino acids, biofilm formation

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = L-homocysteine + (4S)-4,5-dihydroxypentan-2,3-dione (according to Swiss-Prot)

• Protein family: luxS family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity: subject to feedback inhibition PubMed

• Interactions:

• Localization:

Database entries

• Structure: 1JQW (complex with homocysteine), 1J98

• UniProt: O34667

• KEGG entry: [3]

• E.C. number: 4.4.1.21

Expression and regulation

• Operon: luxS PubMed

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information: subject to feedback inhibition PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Ana Gutiérrez-Preciado, Tina M Henkin, Frank J Grundy, Charles Yanofsky, Enrique Merino
Biochemical features and functional implications of the RNA-based T-box regulatory mechanism.
Microbiol Mol Biol Rev: 2009, 73(1);36-61
[PubMed:19258532] [WorldCat.org] [DOI] (I p)

M T Hilgers, M L Ludwig
Crystal structure of the quorum-sensing protein LuxS reveals a catalytic metal site.
Proc Natl Acad Sci U S A: 2001, 98(20);11169-74
[PubMed:11553770] [WorldCat.org] [DOI] (P p)

Alia Lapidus, Nathalie Galleron, Alexei Sorokin, S Dusko Ehrlich
Sequencing and functional annotation of the Bacillus subtilis genes in the 200 kb rrnB-dnaB region.
Microbiology (Reading): 1997, 143 ( Pt 11);3431-3441
[PubMed:9387221] [WorldCat.org] [DOI] (P p)