ID   IPYR_ENCCU              Reviewed;         277 AA.
AC   Q8SR69;
DT   07-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2002, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Inorganic pyrophosphatase;
DE            EC=3.6.1.1;
DE   AltName: Full=Pyrophosphate phospho-hydrolase;
DE            Short=PPase;
GN   Name=IPP1; OrderedLocusNames=ECU10_0340;
OS   Encephalitozoon cuniculi (strain GB-M1) (Microsporidian parasite).
OC   Eukaryota; Fungi; Fungi incertae sedis; Microsporidia; Unikaryonidae;
OC   Encephalitozoon.
OX   NCBI_TaxID=284813;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=GB-M1;
RX   PubMed=11719806; DOI=10.1038/35106579;
RA   Katinka M.D., Duprat S., Cornillot E., Metenier G., Thomarat F.,
RA   Prensier G., Barbe V., Peyretaillade E., Brottier P., Wincker P.,
RA   Delbac F., El Alaoui H., Peyret P., Saurin W., Gouy M., Weissenbach J.,
RA   Vivares C.P.;
RT   "Genome sequence and gene compaction of the eukaryote parasite
RT   Encephalitozoon cuniculi.";
RL   Nature 414:450-453(2001).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS], AND
RP   DEVELOPMENTAL STAGE.
RX   PubMed=16691553; DOI=10.1002/pmic.200500796;
RA   Brosson D., Kuhn L., Delbac F., Garin J., Vivares C.P., Texier C.;
RT   "Proteomic analysis of the eukaryotic parasite Encephalitozoon cuniculi
RT   (microsporidia): a reference map for proteins expressed in late sporogonial
RT   stages.";
RL   Proteomics 6:3625-3635(2006).
CC   -!- FUNCTION: Involved in osmoadaptation.
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;
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC   -!- DEVELOPMENTAL STAGE: Expressed in late sporogonial stages.
CC       {ECO:0000269|PubMed:16691553}.
CC   -!- SIMILARITY: Belongs to the PPase family. {ECO:0000305}.
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DR   EMBL; AL590449; CAD25753.1; -; Genomic_DNA.
DR   RefSeq; NP_586149.1; NM_001041982.1.
DR   AlphaFoldDB; Q8SR69; -.
DR   SMR; Q8SR69; -.
DR   STRING; 284813.Q8SR69; -.
DR   GeneID; 859798; -.
DR   KEGG; ecu:ECU10_0340; -.
DR   VEuPathDB; MicrosporidiaDB:ECU10_0340; -.
DR   HOGENOM; CLU_040684_0_2_1; -.
DR   InParanoid; Q8SR69; -.
DR   OMA; WTQAKCE; -.
DR   OrthoDB; 1398991at2759; -.
DR   Proteomes; UP000000819; Chromosome X.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004427; F:inorganic diphosphatase activity; IEA:UniProtKB-EC.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:InterPro.
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   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   1: Evidence at protein level;
KW   Cytoplasm; Hydrolase; Magnesium; Metal-binding; Reference proteome;
KW   Stress response.
FT   CHAIN           1..277
FT                   /note="Inorganic pyrophosphatase"
FT                   /id="PRO_0000378552"
FT   BINDING         80
FT                   /ligand="diphosphate"
FT                   /ligand_id="ChEBI:CHEBI:33019"
FT                   /evidence="ECO:0000250"
FT   BINDING         117
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         122
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
FT   BINDING         122
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000250"
FT   BINDING         154
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   277 AA;  31871 MW;  A98599678690EB44 CRC64;
     MPAYSTVRVG KKYSPSFKVY VTQDGKIVSP FHDIPLYMSG NREIVSVVNE IPRFENGKFE
     INKEEAFNPI KQDIKKGWPR FVKNVFPMKG YLWNYGALPQ TWENPHEVDR HTGARGDNDP
     LDVIEIGRKR KEVGEVYQAK VLGSIALVDE GECDWKVVVI DVNDEKAKEI NDIEDVRKVY
     EGLLEQTIFW FKNYKVPDGK PKNNFALDGK YMDKKFTVGI IKSAYENWCG MINSKSDTNI
     CKENSTLMDK VDSPAIIQED LSDEEVPECV HQFEFIK