LUXS_BACC3
ID LUXS_BACC3 Reviewed; 157 AA.
AC C1EW66;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 26-MAY-2009, sequence version 1.
DT 03-AUG-2022, entry version 66.
DE RecName: Full=S-ribosylhomocysteine lyase {ECO:0000255|HAMAP-Rule:MF_00091};
DE EC=4.4.1.21 {ECO:0000255|HAMAP-Rule:MF_00091};
DE AltName: Full=AI-2 synthesis protein {ECO:0000255|HAMAP-Rule:MF_00091};
DE AltName: Full=Autoinducer-2 production protein LuxS {ECO:0000255|HAMAP-Rule:MF_00091};
GN Name=luxS {ECO:0000255|HAMAP-Rule:MF_00091}; OrderedLocusNames=BCA_4922;
OS Bacillus cereus (strain 03BB102).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC Bacillus cereus group.
OX NCBI_TaxID=572264;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=03BB102;
RA Dodson R.J., Jackson P., Munk A.C., Brettin T., Bruce D., Detter C.,
RA Tapia R., Han C., Sutton G., Sims D.;
RT "Genome sequence of Bacillus cereus 03BB102.";
RL Submitted (FEB-2009) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Involved in the synthesis of autoinducer 2 (AI-2) which is
CC secreted by bacteria and is used to communicate both the cell density
CC and the metabolic potential of the environment. The regulation of gene
CC expression in response to changes in cell density is called quorum
CC sensing. Catalyzes the transformation of S-ribosylhomocysteine (RHC) to
CC homocysteine (HC) and 4,5-dihydroxy-2,3-pentadione (DPD).
CC {ECO:0000255|HAMAP-Rule:MF_00091}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=S-(5-deoxy-D-ribos-5-yl)-L-homocysteine = (S)-4,5-
CC dihydroxypentane-2,3-dione + L-homocysteine; Xref=Rhea:RHEA:17753,
CC ChEBI:CHEBI:29484, ChEBI:CHEBI:58195, ChEBI:CHEBI:58199; EC=4.4.1.21;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00091};
CC -!- COFACTOR:
CC Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00091};
CC Note=Binds 1 Fe cation per subunit. {ECO:0000255|HAMAP-Rule:MF_00091};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00091}.
CC -!- SIMILARITY: Belongs to the LuxS family. {ECO:0000255|HAMAP-
CC Rule:MF_00091}.
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DR EMBL; CP001407; ACO28162.1; -; Genomic_DNA.
DR RefSeq; WP_001141368.1; NZ_CP009318.1.
DR AlphaFoldDB; C1EW66; -.
DR SMR; C1EW66; -.
DR EnsemblBacteria; ACO28162; ACO28162; BCA_4922.
DR KEGG; bcx:BCA_4922; -.
DR PATRIC; fig|572264.18.peg.4868; -.
DR OMA; GPMGCLT; -.
DR Proteomes; UP000002210; Chromosome.
DR GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR GO; GO:0043768; F:S-ribosylhomocysteine lyase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0009372; P:quorum sensing; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.1360.80; -; 1.
DR HAMAP; MF_00091; LuxS; 1.
DR InterPro; IPR037005; LuxS_sf.
DR InterPro; IPR011249; Metalloenz_LuxS/M16.
DR InterPro; IPR003815; S-ribosylhomocysteinase.
DR PANTHER; PTHR35799; PTHR35799; 1.
DR Pfam; PF02664; LuxS; 1.
DR PIRSF; PIRSF006160; AI2; 1.
DR PRINTS; PR01487; LUXSPROTEIN.
DR SUPFAM; SSF63411; SSF63411; 1.
PE 3: Inferred from homology;
KW Autoinducer synthesis; Iron; Lyase; Metal-binding; Quorum sensing.
FT CHAIN 1..157
FT /note="S-ribosylhomocysteine lyase"
FT /id="PRO_1000118533"
FT BINDING 54
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00091"
FT BINDING 58
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00091"
FT BINDING 126
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00091"
SQ SEQUENCE 157 AA; 17928 MW; 5E4BB8F36D754793 CRC64;
MPSVESFELD HTIVKAPYVR HCGVHNVGSD GIVNKFDIRF CQPNKQAMKP DVIHTLEHLL
AFNLRKYIDR YPHFDIIDIS PMGCQTGYYL VVSGTPTVRE IIDLLELTLK DAVQITEIPA
ANETQCGQAK LHDLEGAKRL MNFWLSQDKD ELEKVFE
