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HAMAP rule MF_00091

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General rule information [?]

Accession MF_00091
Dates 1-JUN-2001 (Created)
19-NOV-2022 (Last updated, Version 28)
Name LuxS
Scope
Bacteria
Templates O34667 (LUXS_BACSU); Q9PN97 (LUXS_CAMJE); Q9RRU8 (LUXS_DEIRA); P45578 (LUXS_ECOLI); P44007 (LUXS_HAEIN): [Recover all]

Propagated annotation [?]


Identifier, protein and gene names [?]

Identifier
LUXS
Protein name
RecName: Full=S-ribosylhomocysteine lyase;
EC 4.4.1.21;
AltName: Full=AI-2 synthesis protein;
AltName: Full=Autoinducer-2 production protein LuxS;
Gene name
luxS

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).
Catalytic activity RHEA:17753: S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = (S)-4,5-dihydroxypentane-2,3-dione + L-homocysteine
EC 4.4.1.21
case <FTGroup:1>
Cofactor Fe cation
Note: Binds 1 Fe cation per subunit.
end case
Subunit Homodimer.
Similarity Belongs to the LuxS family.

Keywords [?]

case <FTGroup:1>
end case

Gene Ontology [?]

GO:0043768; Molecular function: S-ribosylhomocysteine lyase activity.
GO:0009372; Biological process: quorum sensing.

Cross-references [?]

Pfam PF02664; LuxS; 1;
PRINTS PR01487; LUXSPROTEIN; 1;

Features [?]

From: LUXS_BACSU (O34667)
Key     From     To       Description   Tag   Condition   FTGroup
BINDING     54     54       /ligand="Fe cation" /ligand_id="ChEBI:CHEBI:24875     H   1
BINDING     58     58       /ligand="Fe cation" /ligand_id="ChEBI:CHEBI:24875     H   1
BINDING     126     126       /ligand="Fe cation" /ligand_id="ChEBI:CHEBI:24875     C   1

Additional information [?]

Size range 151-173 amino acids
Related rules None
Fusion None