ID   LUXS_STAAN              Reviewed;         156 AA.
AC   P65330; Q99SC5;
DT   11-OCT-2004, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2004, sequence version 1.
DT   27-MAR-2024, entry version 97.
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=SA1936;
OS   Staphylococcus aureus (strain N315).
OC   Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=158879;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=N315;
RX   PubMed=11418146; DOI=10.1016/s0140-6736(00)04403-2;
RA   Kuroda M., Ohta T., Uchiyama I., Baba T., Yuzawa H., Kobayashi I., Cui L.,
RA   Oguchi A., Aoki K., Nagai Y., Lian J.-Q., Ito T., Kanamori M.,
RA   Matsumaru H., Maruyama A., Murakami H., Hosoyama A., Mizutani-Ui Y.,
RA   Takahashi N.K., Sawano T., Inoue R., Kaito C., Sekimizu K., Hirakawa H.,
RA   Kuhara S., Goto S., Yabuzaki J., Kanehisa M., Yamashita A., Oshima K.,
RA   Furuya K., Yoshino C., Shiba T., Hattori M., Ogasawara N., Hayashi H.,
RA   Hiramatsu K.;
RT   "Whole genome sequencing of meticillin-resistant Staphylococcus aureus.";
RL   Lancet 357:1225-1240(2001).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC   STRAIN=N315;
RA   Vaezzadeh A.R., Deshusses J., Lescuyer P., Hochstrasser D.F.;
RT   "Shotgun proteomic analysis of total and membrane protein extracts of S.
RT   aureus strain N315.";
RL   Submitted (OCT-2007) to UniProtKB.
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; Evidence={ECO:0000255|HAMAP-
CC         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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; BA000018; BAB43220.1; -; Genomic_DNA.
DR   PIR; C90007; C90007.
DR   RefSeq; WP_000164421.1; NC_002745.2.
DR   AlphaFoldDB; P65330; -.
DR   SMR; P65330; -.
DR   EnsemblBacteria; BAB43220; BAB43220; BAB43220.
DR   KEGG; sau:SA1936; -.
DR   HOGENOM; CLU_107531_2_0_9; -.
DR   Proteomes; UP000000751; 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; S-ribosylhomocysteinase (LuxS); 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; S-RIBOSYLHOMOCYSTEINE LYASE; 1.
DR   PANTHER; PTHR35799:SF1; S-RIBOSYLHOMOCYSTEINE LYASE; 1.
DR   Pfam; PF02664; LuxS; 1.
DR   PIRSF; PIRSF006160; AI2; 1.
DR   PRINTS; PR01487; LUXSPROTEIN.
DR   SUPFAM; SSF63411; LuxS/MPP-like metallohydrolase; 1.
PE   1: Evidence at protein level;
KW   Autoinducer synthesis; Iron; Lyase; Metal-binding; Quorum sensing.
FT   CHAIN           1..156
FT                   /note="S-ribosylhomocysteine lyase"
FT                   /id="PRO_0000172255"
FT   BINDING         56
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00091"
FT   BINDING         60
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00091"
FT   BINDING         123
FT                   /ligand="Fe cation"
FT                   /ligand_id="ChEBI:CHEBI:24875"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00091"
SQ   SEQUENCE   156 AA;  17514 MW;  CC19EAE44C14C248 CRC64;
     MTKMNVESFN LDHTKVVAPF IRLAGTMEGL NGDVIHKYDI RFKQPNKEHM DMPGLHSLEH
     LMAENIRNHS DKVVDLSPMG CQTGFYVSFI NHDNYDDVLN IVEATLNDVL NATEVPACNE
     VQCGWAASHS LEGAKTIAQA FLDKRNEWHD VFGTGK
//