ID   HTPX_ECO27              Reviewed;         293 AA.
AC   B7USK6;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 61.
DE   RecName: Full=Protease HtpX {ECO:0000255|HAMAP-Rule:MF_00188};
DE            EC=3.4.24.- {ECO:0000255|HAMAP-Rule:MF_00188};
DE   AltName: Full=Heat shock protein HtpX {ECO:0000255|HAMAP-Rule:MF_00188};
GN   Name=htpX {ECO:0000255|HAMAP-Rule:MF_00188}; OrderedLocusNames=E2348C_1954;
OS   Escherichia coli O127:H6 (strain E2348/69 / EPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=574521;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=E2348/69 / EPEC;
RX   PubMed=18952797; DOI=10.1128/jb.01238-08;
RA   Iguchi A., Thomson N.R., Ogura Y., Saunders D., Ooka T., Henderson I.R.,
RA   Harris D., Asadulghani M., Kurokawa K., Dean P., Kenny B., Quail M.A.,
RA   Thurston S., Dougan G., Hayashi T., Parkhill J., Frankel G.;
RT   "Complete genome sequence and comparative genome analysis of
RT   enteropathogenic Escherichia coli O127:H6 strain E2348/69.";
RL   J. Bacteriol. 191:347-354(2009).
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00188};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00188};
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00188}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00188}.
CC   -!- SIMILARITY: Belongs to the peptidase M48B family. {ECO:0000255|HAMAP-
CC       Rule:MF_00188}.
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DR   EMBL; FM180568; CAS09502.1; -; Genomic_DNA.
DR   RefSeq; WP_000984504.1; NC_011601.1.
DR   AlphaFoldDB; B7USK6; -.
DR   SMR; B7USK6; -.
DR   MEROPS; M48.002; -.
DR   EnsemblBacteria; CAS09502; CAS09502; E2348C_1954.
DR   KEGG; ecg:E2348C_1954; -.
DR   HOGENOM; CLU_042266_1_0_6; -.
DR   OMA; AVCCTEG; -.
DR   Proteomes; UP000008205; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0004222; F:metalloendopeptidase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006508; P:proteolysis; IEA:UniProtKB-KW.
DR   HAMAP; MF_00188; Pept_M48_protease_HtpX; 1.
DR   InterPro; IPR022919; Pept_M48_protease_HtpX.
DR   InterPro; IPR001915; Peptidase_M48.
DR   Pfam; PF01435; Peptidase_M48; 1.
PE   3: Inferred from homology;
KW   Cell inner membrane; Cell membrane; Hydrolase; Membrane; Metal-binding;
KW   Metalloprotease; Protease; Transmembrane; Transmembrane helix; Zinc.
FT   CHAIN           1..293
FT                   /note="Protease HtpX"
FT                   /id="PRO_1000124227"
FT   TRANSMEM        4..24
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        34..54
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        158..178
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        193..213
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   ACT_SITE        140
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         139
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         143
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         222
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
SQ   SEQUENCE   293 AA;  31904 MW;  423655962441B0A3 CRC64;
     MMRIALFLLT NLAVMVVFGL VLSLTGIQSS SVQGLMIMAL LFGFGGSFVS LLMSKWMALR
     SVGGEVIEQP RNERERWLVN TVATQACQAG IAMPQVAIYH APDINAFATG ARRDASLVAV
     STGLLQNMSP DEAEAVIAHE ISHIANGDMV TMTLIQGVVN TFVIFISRIL AQLAAGFMGG
     NRDEGEESNG NPLIYFAVAT VLELVFGILA SIITMWFSRH REFHADAGSA KLVGREKMIA
     ALQRLKTSYE PQEATSMMAF CINGKSKSLS ELFMTHPPLD KRIEALRTGE YLK