ID   HTPX_AERPE              Reviewed;         319 AA.
AC   Q9YD67;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   26-JUN-2007, sequence version 2.
DT   03-AUG-2022, entry version 110.
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=APE_1045.1;
OS   Aeropyrum pernix (strain ATCC 700893 / DSM 11879 / JCM 9820 / NBRC 100138 /
OS   K1).
OC   Archaea; Crenarchaeota; Thermoprotei; Desulfurococcales;
OC   Desulfurococcaceae; Aeropyrum.
OX   NCBI_TaxID=272557;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700893 / DSM 11879 / JCM 9820 / NBRC 100138 / K1;
RX   PubMed=10382966; DOI=10.1093/dnares/6.2.83;
RA   Kawarabayasi Y., Hino Y., Horikawa H., Yamazaki S., Haikawa Y., Jin-no K.,
RA   Takahashi M., Sekine M., Baba S., Ankai A., Kosugi H., Hosoyama A.,
RA   Fukui S., Nagai Y., Nishijima K., Nakazawa H., Takamiya M., Masuda S.,
RA   Funahashi T., Tanaka T., Kudoh Y., Yamazaki J., Kushida N., Oguchi A.,
RA   Aoki K., Kubota K., Nakamura Y., Nomura N., Sako Y., Kikuchi H.;
RT   "Complete genome sequence of an aerobic hyper-thermophilic crenarchaeon,
RT   Aeropyrum pernix K1.";
RL   DNA Res. 6:83-101(1999).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; BA000002; BAA80030.2; -; Genomic_DNA.
DR   PIR; F72703; F72703.
DR   AlphaFoldDB; Q9YD67; -.
DR   STRING; 272557.APE_1045.1; -.
DR   EnsemblBacteria; BAA80030; BAA80030; APE_1045.1.
DR   KEGG; ape:APE_1045.1; -.
DR   eggNOG; arCOG01331; Archaea.
DR   Proteomes; UP000002518; 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..319
FT                   /note="Protease HtpX homolog"
FT                   /id="PRO_0000138912"
FT   TRANSMEM        3..23
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        32..52
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        146..166
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        182..202
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   ACT_SITE        135
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         134
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         138
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         210
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
SQ   SEQUENCE   319 AA;  34671 MW;  CD06FAAACA2E6A8B CRC64;
     MGLTVLALIG GYIVVLGVAA WALDAFTGLS GTGVAFMLSL LALAMVLVQW LFSPYIINMV
     YRTREPLPGE EWIVAEVEQL ARRSGLKPPK VVVSEMNMPN AFAYGSPIAG SYVAVTRGLL
     RLLPKDEVRA VLAHEVGHLK HRDVTVILAL SLIPIAAFLI GRTLVWAGIL GGGGGERRGN
     PMALVAVGAA LLAAGMVFQL IVSHFNRLRE YYADAHSALV TGSPRSLQRA LARIHAAYEH
     NPHLVEEARS NEMASMLFIV APLTSLTASP LVDVDYLVER LKEQETNPLV ELFSTHPPVS
     KRLRFLDRLA SRIGGIEHY