ID   IPYR_SACS2              Reviewed;         172 AA.
AC   Q97W51;
DT   20-JUN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2001, sequence version 1.
DT   03-AUG-2022, entry version 100.
DE   RecName: Full=Inorganic pyrophosphatase {ECO:0000255|HAMAP-Rule:MF_00209};
DE            EC=3.6.1.1 {ECO:0000255|HAMAP-Rule:MF_00209};
DE   AltName: Full=Pyrophosphate phospho-hydrolase {ECO:0000255|HAMAP-Rule:MF_00209};
DE            Short=PPase {ECO:0000255|HAMAP-Rule:MF_00209};
GN   Name=ppa {ECO:0000255|HAMAP-Rule:MF_00209}; OrderedLocusNames=SSO2390;
OS   Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)
OS   (Sulfolobus solfataricus).
OC   Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC   Saccharolobus.
OX   NCBI_TaxID=273057;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35092 / DSM 1617 / JCM 11322 / P2;
RX   PubMed=11427726; DOI=10.1073/pnas.141222098;
RA   She Q., Singh R.K., Confalonieri F., Zivanovic Y., Allard G., Awayez M.J.,
RA   Chan-Weiher C.C.-Y., Clausen I.G., Curtis B.A., De Moors A., Erauso G.,
RA   Fletcher C., Gordon P.M.K., Heikamp-de Jong I., Jeffries A.C., Kozera C.J.,
RA   Medina N., Peng X., Thi-Ngoc H.P., Redder P., Schenk M.E., Theriault C.,
RA   Tolstrup N., Charlebois R.L., Doolittle W.F., Duguet M., Gaasterland T.,
RA   Garrett R.A., Ragan M.A., Sensen C.W., Van der Oost J.;
RT   "The complete genome of the crenarchaeon Sulfolobus solfataricus P2.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:7835-7840(2001).
CC   -!- FUNCTION: Catalyzes the hydrolysis of inorganic pyrophosphate (PPi)
CC       forming two phosphate ions. {ECO:0000255|HAMAP-Rule:MF_00209}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=diphosphate + H2O = H(+) + 2 phosphate; Xref=Rhea:RHEA:24576,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:43474; EC=3.6.1.1; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00209};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00209};
CC   -!- SUBUNIT: Homohexamer. {ECO:0000255|HAMAP-Rule:MF_00209}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00209}.
CC   -!- SIMILARITY: Belongs to the PPase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00209}.
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DR   EMBL; AE006641; AAK42538.1; -; Genomic_DNA.
DR   PIR; C90410; C90410.
DR   RefSeq; WP_009989450.1; NC_002754.1.
DR   AlphaFoldDB; Q97W51; -.
DR   SMR; Q97W51; -.
DR   STRING; 273057.SSO2390; -.
DR   PRIDE; Q97W51; -.
DR   EnsemblBacteria; AAK42538; AAK42538; SSO2390.
DR   GeneID; 44128113; -.
DR   KEGG; sso:SSO2390; -.
DR   PATRIC; fig|273057.12.peg.2473; -.
DR   eggNOG; arCOG01711; Archaea.
DR   HOGENOM; CLU_073198_1_0_2; -.
DR   InParanoid; Q97W51; -.
DR   OMA; DEPTFPG; -.
DR   PhylomeDB; Q97W51; -.
DR   Proteomes; UP000001974; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0004427; F:inorganic diphosphatase activity; IBA:GO_Central.
DR   GO; GO:0000287; F:magnesium ion binding; IBA:GO_Central.
DR   GO; GO:0006796; P:phosphate-containing compound metabolic process; IBA:GO_Central.
DR   CDD; cd00412; pyrophosphatase; 1.
DR   Gene3D; 3.90.80.10; -; 1.
DR   HAMAP; MF_00209; Inorganic_PPase; 1.
DR   InterPro; IPR008162; Pyrophosphatase.
DR   InterPro; IPR036649; Pyrophosphatase_sf.
DR   PANTHER; PTHR10286; PTHR10286; 1.
DR   Pfam; PF00719; Pyrophosphatase; 1.
DR   SUPFAM; SSF50324; SSF50324; 1.
DR   PROSITE; PS00387; PPASE; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Hydrolase; Magnesium; Metal-binding; Reference proteome.
FT   CHAIN           1..172
FT                   /note="Inorganic pyrophosphatase"
FT                   /id="PRO_0000137560"
FT   BINDING         26
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         40
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         52
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         62
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         67
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         67
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         99
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         138
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
SQ   SEQUENCE   172 AA;  19695 MW;  A26DCE6107351298 CRC64;
     MKLGPGKKAP DEINVFIEIP MGSNIKYEYD EEEDIIKVDR VLYTSMVYPF NYGFIPETLE
     EDGDPLDVLV LGNYSLMPGT VIEARPIGMI YMRDEEGEDA KVIAVPRNKT DPSFSNINDV
     KDLPEAIRNK IVHFFEHYKE LEPNKWVKIS GWGSVAEAKE RIKKAIERKK QG