ID   IPYR_HAEDU              Reviewed;         175 AA.
AC   Q7VPC0;
DT   21-NOV-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   03-AUG-2022, entry version 90.
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=HD_0169;
OS   Haemophilus ducreyi (strain 35000HP / ATCC 700724).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=233412;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=35000HP / ATCC 700724;
RA   Munson R.S. Jr., Ray W.C., Mahairas G., Sabo P., Mungur R., Johnson L.,
RA   Nguyen D., Wang J., Forst C., Hood L.;
RT   "The complete genome sequence of Haemophilus ducreyi.";
RL   Submitted (JUN-2003) to the EMBL/GenBank/DDBJ databases.
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; AE017143; AAP95162.1; -; Genomic_DNA.
DR   RefSeq; WP_010944216.1; NC_002940.2.
DR   AlphaFoldDB; Q7VPC0; -.
DR   SMR; Q7VPC0; -.
DR   STRING; 233412.HD_0169; -.
DR   EnsemblBacteria; AAP95162; AAP95162; HD_0169.
DR   KEGG; hdu:HD_0169; -.
DR   eggNOG; COG0221; Bacteria.
DR   HOGENOM; CLU_073198_1_0_6; -.
DR   OMA; DEPTFPG; -.
DR   Proteomes; UP000001022; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004427; F:inorganic diphosphatase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006796; P:phosphate-containing compound metabolic process; IEA:InterPro.
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..175
FT                   /note="Inorganic pyrophosphatase"
FT                   /id="PRO_0000137499"
FT   BINDING         30
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         44
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         56
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         66
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         71
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         71
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         103
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
FT   BINDING         142
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00209"
SQ   SEQUENCE   175 AA;  19424 MW;  0C1AF39BEC468546 CRC64;
     MGLENVPAGK ALPDDIYVVI EIPANSDPIK YEVDKESGSL FVDRFMSTAM FYPANYGYVN
     HTLSSDGDPV DVLVPTPYPL QPGSVIRCRP VGVLKMTDEA GGDAKVVAVP HTKLTKEYDH
     IKDVNDLPAL LKAQIQHFFE SYKALEVGKW VKVEGWGDVN EARQEILDSF ERAKK