ID   LSRK_SALCH              Reviewed;         530 AA.
AC   Q57HE4;
DT   14-OCT-2008, integrated into UniProtKB/Swiss-Prot.
DT   10-MAY-2005, sequence version 1.
DT   03-AUG-2022, entry version 78.
DE   RecName: Full=Autoinducer-2 kinase {ECO:0000255|HAMAP-Rule:MF_02053};
DE            Short=AI-2 kinase {ECO:0000255|HAMAP-Rule:MF_02053};
DE            EC=2.7.1.189 {ECO:0000255|HAMAP-Rule:MF_02053};
GN   Name=lsrK {ECO:0000255|HAMAP-Rule:MF_02053}; OrderedLocusNames=SCH_3962;
OS   Salmonella choleraesuis (strain SC-B67).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Salmonella.
OX   NCBI_TaxID=321314;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SC-B67;
RX   PubMed=15781495; DOI=10.1093/nar/gki297;
RA   Chiu C.-H., Tang P., Chu C., Hu S., Bao Q., Yu J., Chou Y.-Y., Wang H.-S.,
RA   Lee Y.-S.;
RT   "The genome sequence of Salmonella enterica serovar Choleraesuis, a highly
RT   invasive and resistant zoonotic pathogen.";
RL   Nucleic Acids Res. 33:1690-1698(2005).
CC   -!- FUNCTION: Catalyzes the phosphorylation of autoinducer-2 (AI-2) to
CC       phospho-AI-2, which subsequently inactivates the transcriptional
CC       regulator LsrR and leads to the transcription of the lsr operon.
CC       Phosphorylates the ring-open form of (S)-4,5-dihydroxypentane-2,3-dione
CC       (DPD), which is the precursor to all AI-2 signaling molecules, at the
CC       C5 position. {ECO:0000255|HAMAP-Rule:MF_02053}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(S)-4,5-dihydroxypentane-2,3-dione + ATP = (2S)-2-hydroxy-3,4-
CC         dioxopentyl phosphate + ADP + H(+); Xref=Rhea:RHEA:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:29484, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:71677, ChEBI:CHEBI:456216; EC=2.7.1.189;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_02053};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_02053}.
CC   -!- SIMILARITY: Belongs to the FGGY kinase family. {ECO:0000255|HAMAP-
CC       Rule:MF_02053}.
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DR   EMBL; AE017220; AAX67868.1; -; Genomic_DNA.
DR   RefSeq; WP_001541244.1; NC_006905.1.
DR   AlphaFoldDB; Q57HE4; -.
DR   SMR; Q57HE4; -.
DR   EnsemblBacteria; AAX67868; AAX67868; SCH_3962.
DR   KEGG; sec:SCH_3962; -.
DR   HOGENOM; CLU_009281_3_4_6; -.
DR   OMA; SDAMHFK; -.
DR   Proteomes; UP000000538; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0071518; F:autoinducer-2 kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016773; F:phosphotransferase activity, alcohol group as acceptor; IEA:InterPro.
DR   GO; GO:0005975; P:carbohydrate metabolic process; IEA:InterPro.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   GO; GO:0009372; P:quorum sensing; IEA:InterPro.
DR   CDD; cd07775; FGGY_AI-2K; 1.
DR   HAMAP; MF_02053; LsrK; 1.
DR   InterPro; IPR033676; AI-2_kinase.
DR   InterPro; IPR043129; ATPase_NBD.
DR   InterPro; IPR000577; Carb_kinase_FGGY.
DR   InterPro; IPR018485; Carb_kinase_FGGY_C.
DR   InterPro; IPR018484; Carb_kinase_FGGY_N.
DR   Pfam; PF02782; FGGY_C; 1.
DR   Pfam; PF00370; FGGY_N; 1.
DR   PIRSF; PIRSF000538; GlpK; 1.
DR   SUPFAM; SSF53067; SSF53067; 2.
PE   3: Inferred from homology;
KW   Cytoplasm; Kinase; Transferase.
FT   CHAIN           1..530
FT                   /note="Autoinducer-2 kinase"
FT                   /id="PRO_0000351595"
SQ   SEQUENCE   530 AA;  57458 MW;  8186E947F14BC707 CRC64;
     MARLCTHTES GHYLMALDAG TGSVRAVIFD LQGKQIAVGQ AEWQHLAVPD VPGSMEFDLA
     KNWQLACQCI RQALQKAAIP ATAIAAVSAC SMRESIVIYD SNGEPIWACA NVDARAAHEV
     SELKELHDNT FEEEVYRCSG QTLALSAIPR LLWLAHHRPD IYHRASTVTM ISDWMAFMLS
     GELAVDPSNA GTTGLLDLVT RNWKRSLLQM AGLRSDILSP VKETGTLLGH ISQKAAEQCD
     LQAGTPVIVG GGDVQLGCLG LGVVRPAQTA VLGGTFWQQV VNLPAPVTDP NMNVRINPHV
     IPGMVQTESI SFFTGLTMRW FRDAFCAEEK LIAERLGIDA YSLLEDMASR VPPGAYGVMP
     IFSDVMRFKR WYHAAPSFIN LSIDPEKCNK ATLFRALEEN AAIVSACNLQ QIAAFSGVQA
     DSLVFAGGGS KGKLWSQILA DVTGLTVHVP VVKEATALGC AIAAGVGVGI WPSLAETGEK
     LVRWDREHKP NPENFAVYQQ AREKWQAVYQ DQRALVDGGL TTSLWKAPGL