ID   HTPX2_SULTO             Reviewed;         325 AA.
AC   Q96Y22;
DT   19-OCT-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   03-AUG-2022, entry version 106.
DE   RecName: Full=Protease HtpX homolog 2 {ECO:0000255|HAMAP-Rule:MF_00188};
DE            EC=3.4.24.- {ECO:0000255|HAMAP-Rule:MF_00188};
GN   Name=htpX2 {ECO:0000255|HAMAP-Rule:MF_00188}; OrderedLocusNames=STK_23460;
OS   Sulfurisphaera tokodaii (strain DSM 16993 / JCM 10545 / NBRC 100140 / 7)
OS   (Sulfolobus tokodaii).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Sulfurisphaera.
OX   NCBI_TaxID=273063;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 16993 / JCM 10545 / NBRC 100140 / 7;
RX   PubMed=11572479; DOI=10.1093/dnares/8.4.123;
RA   Kawarabayasi Y., Hino Y., Horikawa H., Jin-no K., Takahashi M., Sekine M.,
RA   Baba S., Ankai A., Kosugi H., Hosoyama A., Fukui S., Nagai Y.,
RA   Nishijima K., Otsuka R., Nakazawa H., Takamiya M., Kato Y., Yoshizawa T.,
RA   Tanaka T., Kudoh Y., Yamazaki J., Kushida N., Oguchi A., Aoki K.,
RA   Masuda S., Yanagii M., Nishimura M., Yamagishi A., Oshima T., Kikuchi H.;
RT   "Complete genome sequence of an aerobic thermoacidophilic Crenarchaeon,
RT   Sulfolobus tokodaii strain7.";
RL   DNA Res. 8:123-140(2001).
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; BA000023; BAB67455.1; -; Genomic_DNA.
DR   RefSeq; WP_010980430.1; NC_003106.2.
DR   AlphaFoldDB; Q96Y22; -.
DR   STRING; 273063.STK_23460; -.
DR   EnsemblBacteria; BAB67455; BAB67455; STK_23460.
DR   GeneID; 1460428; -.
DR   KEGG; sto:STK_23460; -.
DR   PATRIC; fig|273063.9.peg.2650; -.
DR   eggNOG; arCOG01331; Archaea.
DR   OMA; AVCCTEG; -.
DR   OrthoDB; 62484at2157; -.
DR   Proteomes; UP000001015; 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..325
FT                   /note="Protease HtpX homolog 2"
FT                   /id="PRO_0000138933"
FT   TRANSMEM        17..37
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   TRANSMEM        42..62
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        195..215
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   ACT_SITE        147
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         146
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00188"
FT   BINDING         150
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   325 AA;  36459 MW;  EBBA433446AE4EA2 CRC64;
     MIWEVTKLRI SMILSAIAIL VLGFALIYGI LGYFFGFSNA PLLITGALAF VTIFTILQWL
     FGPALIKSIY HLTEVDPTDP QYGWVYNLVQ EVAMYNRMNT PKVYIANVPF PNAFAFESPI
     YGKNMAITLP LLRMLTPEEV KAVIGHEIGH LRHKDTELLL AVGLIPTLLY WIGYGLWWGG
     LLGGGGGGRN DNSGILFLIG IALIAFSFLF NLFVLFLNRM REAYADVNSA ITVPNGAKNL
     QTALAKIVLS TDPDIIERYK KKYGQIGSML LFSGFQINED IPAYKVQELV EYWRNIKVSP
     FADIFSDHPH PAKRIQLLEK LTHTQ