LUXS_STAA1
ID LUXS_STAA1 Reviewed; 156 AA.
AC A7X4Y8;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-OCT-2007, sequence version 1.
DT 03-AUG-2022, entry version 79.
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=SAHV_2118;
OS Staphylococcus aureus (strain Mu3 / ATCC 700698).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=418127;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Mu3 / ATCC 700698;
RX PubMed=17954695; DOI=10.1128/aac.00534-07;
RA Neoh H.-M., Cui L., Yuzawa H., Takeuchi F., Matsuo M., Hiramatsu K.;
RT "Mutated response regulator graR is responsible for phenotypic conversion
RT of Staphylococcus aureus from heterogeneous vancomycin-intermediate
RT resistance to vancomycin-intermediate resistance.";
RL Antimicrob. Agents Chemother. 52:45-53(2008).
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; AP009324; BAF79001.1; -; Genomic_DNA.
DR RefSeq; WP_000164421.1; NZ_CTYB01000015.1.
DR AlphaFoldDB; A7X4Y8; -.
DR SMR; A7X4Y8; -.
DR KEGG; saw:SAHV_2118; -.
DR HOGENOM; CLU_107531_2_0_9; -.
DR OMA; GPMGCLT; -.
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..156
FT /note="S-ribosylhomocysteine lyase"
FT /id="PRO_1000004849"
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
