ID   HTPX_LEPIN              Reviewed;         295 AA.
AC   Q8EXN4;
DT   11-APR-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 111.
DE   RecName: Full=Protease HtpX homolog {ECO:0000255|HAMAP-Rule:MF_00188};
DE            EC=3.4.24.- {ECO:0000255|HAMAP-Rule:MF_00188};
GN   Name=htpX {ECO:0000255|HAMAP-Rule:MF_00188}; OrderedLocusNames=LB_174;
OS   Leptospira interrogans serogroup Icterohaemorrhagiae serovar Lai (strain
OS   56601).
OC   Bacteria; Spirochaetes; Leptospirales; Leptospiraceae; Leptospira.
OX   NCBI_TaxID=189518;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=56601;
RX   PubMed=12712204; DOI=10.1038/nature01597;
RA   Ren S.-X., Fu G., Jiang X.-G., Zeng R., Miao Y.-G., Xu H., Zhang Y.-X.,
RA   Xiong H., Lu G., Lu L.-F., Jiang H.-Q., Jia J., Tu Y.-F., Jiang J.-X.,
RA   Gu W.-Y., Zhang Y.-Q., Cai Z., Sheng H.-H., Yin H.-F., Zhang Y., Zhu G.-F.,
RA   Wan M., Huang H.-L., Qian Z., Wang S.-Y., Ma W., Yao Z.-J., Shen Y.,
RA   Qiang B.-Q., Xia Q.-C., Guo X.-K., Danchin A., Saint Girons I.,
RA   Somerville R.L., Wen Y.-M., Shi M.-H., Chen Z., Xu J.-G., Zhao G.-P.;
RT   "Unique physiological and pathogenic features of Leptospira interrogans
RT   revealed by whole-genome sequencing.";
RL   Nature 422:888-893(2003).
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; AE010301; AAN51733.1; -; Genomic_DNA.
DR   RefSeq; NP_714718.1; NC_004343.2.
DR   RefSeq; WP_000264281.1; NC_004343.2.
DR   AlphaFoldDB; Q8EXN4; -.
DR   SMR; Q8EXN4; -.
DR   STRING; 189518.LB_174; -.
DR   MEROPS; M48.002; -.
DR   TCDB; 9.B.1.1.5; the integral membrane caax protease (caax protease) family.
DR   EnsemblBacteria; AAN51733; AAN51733; LB_174.
DR   GeneID; 61141337; -.
DR   KEGG; lil:LB_174; -.
DR   PATRIC; fig|189518.3.peg.4505; -.
DR   HOGENOM; CLU_042266_1_0_12; -.
DR   InParanoid; Q8EXN4; -.
DR   OMA; AVCCTEG; -.
DR   Proteomes; UP000001408; Chromosome II.
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; Reference proteome; Transmembrane;
KW   Transmembrane helix; Zinc.
FT   CHAIN           1..295
FT                   /note="Protease HtpX homolog"
FT                   /id="PRO_0000138869"
FT   TRANSMEM        6..26
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        40..60
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        163..183
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        198..218
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   ACT_SITE        149
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         148
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         152
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         223
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
SQ   SEQUENCE   295 AA;  32190 MW;  028BE0435713E748 CRC64;
     MWFKRIGLFL LTNILVVVTI SIVTSVLGIG PYLDANGINL SSLLVFCFLW GMGGAFVSLL
     LSKFMAKMMM GVQVIDPRSA SGAERELYSR VERLARTANL PMPEVGIYHS PEVNAFATGP
     SKSSSLVAVS SGLLQTMDNA EVEGVLAHEL AHVANGDMVT MTLIQGVVNA FVMFFSRIIS
     YALSTMVKDE LQYTVRLIAN IVLSILFSIL GSIIVAYFSR TREYRADAGG AKLAGRQNMI
     AALEKLKRTF DAPEDERGRE ALATMKISGH NKWMALFSTH PPLEARIAAL KNSGY