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LUXS_BORBU
ID   LUXS_BORBU              Reviewed;         157 AA.
AC   O50164;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2000, sequence version 2.
DT   03-AUG-2022, entry version 116.
DE   RecName: Full=S-ribosylhomocysteine lyase;
DE            EC=4.4.1.21;
DE   AltName: Full=AI-2 synthesis protein;
DE   AltName: Full=Autoinducer-2 production protein LuxS;
GN   Name=luxS; OrderedLocusNames=BB_0377;
OS   Borreliella burgdorferi (strain ATCC 35210 / DSM 4680 / CIP 102532 / B31)
OS   (Borrelia burgdorferi).
OC   Bacteria; Spirochaetes; Spirochaetales; Borreliaceae; Borreliella.
OX   NCBI_TaxID=224326;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35210 / DSM 4680 / CIP 102532 / B31;
RX   PubMed=9403685; DOI=10.1038/37551;
RA   Fraser C.M., Casjens S., Huang W.M., Sutton G.G., Clayton R.A.,
RA   Lathigra R., White O., Ketchum K.A., Dodson R.J., Hickey E.K., Gwinn M.L.,
RA   Dougherty B.A., Tomb J.-F., Fleischmann R.D., Richardson D.L.,
RA   Peterson J.D., Kerlavage A.R., Quackenbush J., Salzberg S.L., Hanson M.,
RA   van Vugt R., Palmer N., Adams M.D., Gocayne J.D., Weidman J.F.,
RA   Utterback T.R., Watthey L., McDonald L.A., Artiach P., Bowman C.,
RA   Garland S.A., Fujii C., Cotton M.D., Horst K., Roberts K.M., Hatch B.,
RA   Smith H.O., Venter J.C.;
RT   "Genomic sequence of a Lyme disease spirochaete, Borrelia burgdorferi.";
RL   Nature 390:580-586(1997).
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) (By
CC       similarity). {ECO:0000250}.
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   -!- COFACTOR:
CC       Name=Fe cation; Xref=ChEBI:CHEBI:24875; Evidence={ECO:0000250};
CC       Note=Binds 1 Fe cation per subunit. {ECO:0000250};
CC   -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the LuxS family. {ECO:0000305}.
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DR   EMBL; AE000783; AAC66762.2; -; Genomic_DNA.
DR   PIR; H70146; H70146.
DR   RefSeq; NP_212511.2; NC_001318.1.
DR   RefSeq; WP_002656744.1; NC_001318.1.
DR   AlphaFoldDB; O50164; -.
DR   SMR; O50164; -.
DR   STRING; 224326.BB_0377; -.
DR   PRIDE; O50164; -.
DR   EnsemblBacteria; AAC66762; AAC66762; BB_0377.
DR   GeneID; 56567805; -.
DR   KEGG; bbu:BB_0377; -.
DR   PATRIC; fig|224326.49.peg.772; -.
DR   HOGENOM; CLU_107531_1_0_12; -.
DR   OMA; GPMGCLT; -.
DR   Proteomes; UP000001807; 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;
KW   Reference proteome.
FT   CHAIN           1..157
FT                   /note="S-ribosylhomocysteine lyase"
FT                   /id="PRO_0000172212"
FT   BINDING         53
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000250"
FT   BINDING         57
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000250"
FT   BINDING         124
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   157 AA;  18098 MW;  89C3844C37BB7504 CRC64;
     MKKITSFTID HTKLNPGIYV SRKDTFENVI FTTIDIRIKA PNIEPIIENA AIHTIEHIGA
     TLLRNNEVWT EKIVYFGPMG CRTGFYLIIF GDYESKDLVD LVSWLFSEIV NFSEPIPGAS
     DKECGNYKEH NLDMAKYESS KYLQILNNIK EENLKYP
 
 
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