ID   PT1_CHLMU               Reviewed;         567 AA.
AC   Q9PK57;
DT   01-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 119.
DE   RecName: Full=Phosphoenolpyruvate-protein phosphotransferase {ECO:0000250|UniProtKB:P08839};
DE            EC=2.7.3.9 {ECO:0000250|UniProtKB:P08839};
DE   AltName: Full=Phosphotransferase system, enzyme I {ECO:0000250|UniProtKB:P08839};
GN   Name=ptsI; OrderedLocusNames=TC_0613;
OS   Chlamydia muridarum (strain MoPn / Nigg).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=243161;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MoPn / Nigg;
RX   PubMed=10684935; DOI=10.1093/nar/28.6.1397;
RA   Read T.D., Brunham R.C., Shen C., Gill S.R., Heidelberg J.F., White O.,
RA   Hickey E.K., Peterson J.D., Utterback T.R., Berry K.J., Bass S.,
RA   Linher K.D., Weidman J.F., Khouri H.M., Craven B., Bowman C., Dodson R.J.,
RA   Gwinn M.L., Nelson W.C., DeBoy R.T., Kolonay J.F., McClarty G.,
RA   Salzberg S.L., Eisen J.A., Fraser C.M.;
RT   "Genome sequences of Chlamydia trachomatis MoPn and Chlamydia pneumoniae
RT   AR39.";
RL   Nucleic Acids Res. 28:1397-1406(2000).
CC   -!- FUNCTION: General (non sugar-specific) component of the
CC       phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar
CC       PTS). This major carbohydrate active-transport system catalyzes the
CC       phosphorylation of incoming sugar substrates concomitantly with their
CC       translocation across the cell membrane. Enzyme I transfers the
CC       phosphoryl group from phosphoenolpyruvate (PEP) to the phosphoryl
CC       carrier protein (HPr). {ECO:0000250|UniProtKB:P08839}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=L-histidyl-[protein] + phosphoenolpyruvate = N(pros)-phospho-
CC         L-histidyl-[protein] + pyruvate; Xref=Rhea:RHEA:23880, Rhea:RHEA-
CC         COMP:9745, Rhea:RHEA-COMP:9746, ChEBI:CHEBI:15361, ChEBI:CHEBI:29979,
CC         ChEBI:CHEBI:58702, ChEBI:CHEBI:64837; EC=2.7.3.9;
CC         Evidence={ECO:0000250|UniProtKB:P08839};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:P08839};
CC   -!- SUBUNIT: Homodimer. {ECO:0000250|UniProtKB:P08839}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000305}.
CC   -!- DOMAIN: The N-terminal domain contains the HPr binding site, the
CC       central domain the pyrophosphate/phosphate carrier histidine, and the
CC       C-terminal domain the pyruvate binding site.
CC       {ECO:0000250|UniProtKB:P08839}.
CC   -!- MISCELLANEOUS: The reaction takes place in three steps, mediated by a
CC       phosphocarrier histidine residue located on the surface of the central
CC       domain. The two first partial reactions are catalyzed at an active site
CC       located on the N-terminal domain, and the third partial reaction is
CC       catalyzed at an active site located on the C-terminal domain. For
CC       catalytic turnover, the central domain swivels from the concave surface
CC       of the N-terminal domain to that of the C-terminal domain.
CC       {ECO:0000250|UniProtKB:P08839}.
CC   -!- SIMILARITY: Belongs to the PEP-utilizing enzyme family. {ECO:0000305}.
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DR   EMBL; AE002160; AAF39444.1; -; Genomic_DNA.
DR   PIR; F81682; F81682.
DR   RefSeq; WP_010230997.1; NZ_CP027217.1.
DR   AlphaFoldDB; Q9PK57; -.
DR   SMR; Q9PK57; -.
DR   STRING; 243161.TC_0613; -.
DR   EnsemblBacteria; AAF39444; AAF39444; TC_0613.
DR   GeneID; 1245975; -.
DR   KEGG; cmu:TC_0613; -.
DR   eggNOG; COG1080; Bacteria.
DR   HOGENOM; CLU_007308_7_0_0; -.
DR   OMA; CNAEWAL; -.
DR   OrthoDB; 467393at2; -.
DR   Proteomes; UP000000800; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0016301; F:kinase activity; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0008965; F:phosphoenolpyruvate-protein phosphotransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0009401; P:phosphoenolpyruvate-dependent sugar phosphotransferase system; IEA:UniProtKB-KW.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.274.10; -; 1.
DR   Gene3D; 3.20.20.60; -; 1.
DR   InterPro; IPR008279; PEP-util_enz_mobile_dom.
DR   InterPro; IPR000121; PEP_util_C.
DR   InterPro; IPR023151; PEP_util_CS.
DR   InterPro; IPR036637; Phosphohistidine_dom_sf.
DR   InterPro; IPR006318; PTS_EI-like.
DR   InterPro; IPR008731; PTS_EIN.
DR   InterPro; IPR036618; PtsI_HPr-bd_sf.
DR   InterPro; IPR015813; Pyrv/PenolPyrv_Kinase-like_dom.
DR   InterPro; IPR040442; Pyrv_Kinase-like_dom_sf.
DR   Pfam; PF05524; PEP-utilisers_N; 1.
DR   Pfam; PF00391; PEP-utilizers; 1.
DR   Pfam; PF02896; PEP-utilizers_C; 1.
DR   SUPFAM; SSF47831; SSF47831; 1.
DR   SUPFAM; SSF51621; SSF51621; 1.
DR   SUPFAM; SSF52009; SSF52009; 1.
DR   TIGRFAMs; TIGR01417; PTS_I_fam; 1.
DR   PROSITE; PS00742; PEP_ENZYMES_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Kinase; Magnesium; Metal-binding; Phosphotransferase system;
KW   Sugar transport; Transferase; Transport.
FT   CHAIN           1..567
FT                   /note="Phosphoenolpyruvate-protein phosphotransferase"
FT                   /id="PRO_0000147064"
FT   ACT_SITE        205
FT                   /note="Tele-phosphohistidine intermediate"
FT                   /evidence="ECO:0000250|UniProtKB:P08839"
FT   ACT_SITE        502
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250|UniProtKB:P08839"
FT   BINDING         308
FT                   /ligand="phosphoenolpyruvate"
FT                   /ligand_id="ChEBI:CHEBI:58702"
FT                   /evidence="ECO:0000250|UniProtKB:P23533"
FT   BINDING         344
FT                   /ligand="phosphoenolpyruvate"
FT                   /ligand_id="ChEBI:CHEBI:58702"
FT                   /evidence="ECO:0000250|UniProtKB:P08839"
FT   BINDING         431
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P08839"
FT   BINDING         454..455
FT                   /ligand="phosphoenolpyruvate"
FT                   /ligand_id="ChEBI:CHEBI:58702"
FT                   /evidence="ECO:0000250|UniProtKB:P08839"
FT   BINDING         455
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P08839"
FT   BINDING         465
FT                   /ligand="phosphoenolpyruvate"
FT                   /ligand_id="ChEBI:CHEBI:58702"
FT                   /evidence="ECO:0000250|UniProtKB:P23533"
SQ   SEQUENCE   567 AA;  63311 MW;  EFC064A3404F4BB4 CRC64;
     MGATSQKELQ QEFVIVGEPV VPGIGLGKSL LLGKSSLRIR ELTLPQEEVE HEINRYYKAL
     KESRSDLAAL EKKAKGKQGY QEIASILQAH LEIIKDPLLT EEVVKTIRKD RKNAEFVFSS
     VMGEIEKSLC AVQKTTAIAV DRIQDIHDIS NRVIGHLCCQ HKSSLGESDQ NLIVFSEELT
     PSEAANANPK YIRGFVSLEG SKTSHTAIVS LAKNIPYVAN FSAESWQRIR EYNGNLVLIN
     GEKGEITFNP KLSTIQAYYR KQSAVSMTVP IQIEKTQPLI SLSAQIVGVD ELGSISREFP
     GTTIGLFRSE FMAFSLGRLP FVEEQVAEYT KLVQFSCSDI NVLRLFDFGE DKVCPFIASA
     HRSVRWLLEQ ETILRGQLQA IAIASRQGKL KVLIPGVLDA SEIILVKQMF QEEVQLQNGI
     SENIIWGSMI EIPSAVWMIE EILQESSFIA LGTNDLAQYT LGMSRERSLP GNWKQVPHPS
     VIRMIHYVAA RAKQRNIPVS VCGEMAGDHL LLPMFIGFGV RELSVVAPAI HSLKMRLLAL
     NSKECSRLAK QLLRARTYEE VHKLLNM