ID   HTPX_PICTO              Reviewed;         307 AA.
AC   Q6L2Q7;
DT   30-AUG-2005, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   03-AUG-2022, entry version 100.
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=PTO0160;
OS   Picrophilus torridus (strain ATCC 700027 / DSM 9790 / JCM 10055 / NBRC
OS   100828).
OC   Archaea; Candidatus Thermoplasmatota; Thermoplasmata; Thermoplasmatales;
OC   Picrophilaceae; Picrophilus.
OX   NCBI_TaxID=263820;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700027 / DSM 9790 / JCM 10055 / NBRC 100828;
RX   PubMed=15184674; DOI=10.1073/pnas.0401356101;
RA   Fuetterer O., Angelov A., Liesegang H., Gottschalk G., Schleper C.,
RA   Schepers B., Dock C., Antranikian G., Liebl W.;
RT   "Genome sequence of Picrophilus torridus and its implications for life
RT   around pH 0.";
RL   Proc. Natl. Acad. Sci. U.S.A. 101:9091-9096(2004).
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 membrane {ECO:0000255|HAMAP-Rule:MF_00188};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_00188}.
CC   -!- SIMILARITY: Belongs to the peptidase M48B family. {ECO:0000255|HAMAP-
CC       Rule:MF_00188}.
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DR   EMBL; AE017261; AAT42745.1; -; Genomic_DNA.
DR   RefSeq; WP_011176961.1; NC_005877.1.
DR   AlphaFoldDB; Q6L2Q7; -.
DR   STRING; 263820.PTO0160; -.
DR   PRIDE; Q6L2Q7; -.
DR   EnsemblBacteria; AAT42745; AAT42745; PTO0160.
DR   GeneID; 2844988; -.
DR   KEGG; pto:PTO0160; -.
DR   PATRIC; fig|263820.9.peg.176; -.
DR   eggNOG; arCOG01331; Archaea.
DR   HOGENOM; CLU_042266_4_1_2; -.
DR   OMA; AVCCTEG; -.
DR   OrthoDB; 62484at2157; -.
DR   Proteomes; UP000000438; 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 membrane; Hydrolase; Membrane; Metal-binding; Metalloprotease;
KW   Protease; Reference proteome; Transmembrane; Transmembrane helix; Zinc.
FT   CHAIN           1..307
FT                   /note="Protease HtpX homolog"
FT                   /id="PRO_0000138922"
FT   TRANSMEM        10..30
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        156..176
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        187..207
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   ACT_SITE        145
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         144
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
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         213
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
SQ   SEQUENCE   307 AA;  34744 MW;  E97EE2FE169F453B CRC64;
     MDLYSIKLKV ITILAGIGIA LLFSLIAYGL LYYFYGLSGI SIIYFLLIFV LFIDIIQWLV
     SPYIIGMTYR LQKVSPMSQY GYLIDIVHDA AEKNNIKEPE VYIAMRGSPN AFAYSSPLAG
     KRIAFTKSIL DILNRDELEA VAGHELGHLK HHDVELLLAI GLIPTLIFYL GYSMIFSGFG
     RRNGGSFFLV AIILFILSSV FNIMILGVNR IRESYADVNS AMTIPNGAEN LQNALAKIYS
     YSMPSKQTSN STVNMLMFSD HIENDLGRDY RKLVEKWKNM KPPVSIFSDH PHPAKRIQIL
     ERYKNSF