LUXS_STRP3
ID LUXS_STRP3 Reviewed; 160 AA.
AC P0DC26; P0A3P8; Q99YL7; Q9EVB4;
DT 27-JUL-2011, integrated into UniProtKB/Swiss-Prot.
DT 27-JUL-2011, sequence version 1.
DT 03-AUG-2022, entry version 46.
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=SpyM3_1384;
OS Streptococcus pyogenes serotype M3 (strain ATCC BAA-595 / MGAS315).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=198466;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-595 / MGAS315;
RX PubMed=12122206; DOI=10.1073/pnas.152298499;
RA Beres S.B., Sylva G.L., Barbian K.D., Lei B., Hoff J.S., Mammarella N.D.,
RA Liu M.-Y., Smoot J.C., Porcella S.F., Parkins L.D., Campbell D.S.,
RA Smith T.M., McCormick J.K., Leung D.Y.M., Schlievert P.M., Musser J.M.;
RT "Genome sequence of a serotype M3 strain of group A Streptococcus: phage-
RT encoded toxins, the high-virulence phenotype, and clone emergence.";
RL Proc. Natl. Acad. Sci. U.S.A. 99:10078-10083(2002).
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}.
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; AE014074; AAM79991.1; -; Genomic_DNA.
DR RefSeq; WP_002988938.1; NC_004070.1.
DR AlphaFoldDB; P0DC26; -.
DR SMR; P0DC26; -.
DR EnsemblBacteria; AAM79991; AAM79991; SpyM3_1384.
DR GeneID; 57853043; -.
DR KEGG; spg:SpyM3_1384; -.
DR HOGENOM; CLU_107531_2_1_9; -.
DR OMA; GPMGCLT; -.
DR Proteomes; UP000000564; 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..160
FT /note="S-ribosylhomocysteine lyase"
FT /id="PRO_0000172269"
FT BINDING 57
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000250"
FT BINDING 61
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000250"
FT BINDING 127
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000250"
SQ SEQUENCE 160 AA; 17979 MW; A45592396C76BD21 CRC64;
MTKEVIVESF ELDHTIVKAP YVRLISEEFG PKGDRITNFD VRLVQPNQNS IETAGLHTIE
HLLAKLIRQR IDGMIDCSPF GCRTGFHLIM WGKHSSTDIA KVIKSSLEEI ATGITWEDVP
GTTLESCGNY KDHSLFAAKE WAQLIIDQGI SDDPFSRHVI
