ID   PPAX_BACC0              Reviewed;         216 AA.
AC   B7JFI8;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   25-MAY-2022, entry version 64.
DE   RecName: Full=Pyrophosphatase PpaX {ECO:0000255|HAMAP-Rule:MF_01250};
DE            EC=3.6.1.1 {ECO:0000255|HAMAP-Rule:MF_01250};
GN   Name=ppaX {ECO:0000255|HAMAP-Rule:MF_01250};
GN   OrderedLocusNames=BCAH820_5246;
OS   Bacillus cereus (strain AH820).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=405535;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AH820;
RA   Dodson R.J., Durkin A.S., Rosovitz M.J., Rasko D.A., Hoffmaster A.,
RA   Ravel J., Sutton G.;
RT   "Genome sequence of Bacillus cereus AH820.";
RL   Submitted (OCT-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Hydrolyzes pyrophosphate formed during P-Ser-HPr
CC       dephosphorylation by HPrK/P. Might play a role in controlling the
CC       intracellular pyrophosphate pool. {ECO:0000255|HAMAP-Rule:MF_01250}.
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_01250};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01250};
CC   -!- SIMILARITY: Belongs to the HAD-like hydrolase superfamily. PpaX family.
CC       {ECO:0000255|HAMAP-Rule:MF_01250}.
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DR   EMBL; CP001283; ACK90869.1; -; Genomic_DNA.
DR   RefSeq; WP_000700959.1; NC_011773.1.
DR   AlphaFoldDB; B7JFI8; -.
DR   SMR; B7JFI8; -.
DR   EnsemblBacteria; ACK90869; ACK90869; BCAH820_5246.
DR   KEGG; bcu:BCAH820_5246; -.
DR   HOGENOM; CLU_045011_19_3_9; -.
DR   OMA; LLIFDWD; -.
DR   Proteomes; UP000001363; Chromosome.
DR   GO; GO:0004427; F:inorganic diphosphatase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.150.240; -; 1.
DR   Gene3D; 3.40.50.1000; -; 1.
DR   HAMAP; MF_01250; Pyrophosphat_PpaX; 1.
DR   InterPro; IPR036412; HAD-like_sf.
DR   InterPro; IPR006439; HAD-SF_hydro_IA.
DR   InterPro; IPR006549; HAD-SF_hydro_IIIA.
DR   InterPro; IPR041492; HAD_2.
DR   InterPro; IPR023214; HAD_sf.
DR   InterPro; IPR023198; PGP-like_dom2.
DR   InterPro; IPR023733; Pyrophosphatase_Ppax.
DR   Pfam; PF13419; HAD_2; 1.
DR   PRINTS; PR00413; HADHALOGNASE.
DR   SUPFAM; SSF56784; SSF56784; 1.
DR   TIGRFAMs; TIGR01549; HAD-SF-IA-v1; 1.
DR   TIGRFAMs; TIGR01509; HAD-SF-IA-v3; 1.
DR   TIGRFAMs; TIGR01662; HAD-SF-IIIA; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Magnesium.
FT   CHAIN           1..216
FT                   /note="Pyrophosphatase PpaX"
FT                   /id="PRO_1000139923"
FT   ACT_SITE        9
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01250"
SQ   SEQUENCE   216 AA;  24663 MW;  EC1BC21002C0A382 CRC64;
     MKINTVLFDL DGTLINTNEL IISSFLHTLH TYYPNQYKRE DVLPFIGPSL HDTFSKIDES
     KVEELITSYR QFNHDHHDEL VEEYETVYET VQELKKQGYK VGIVTTKARQ TVEMGLKLSK
     LDEFFDVVVT IDDVEHVKPH PEPLQKALQL LGAKPEEALM VGDNHHDIVG GQNAGTKTAA
     VSWTLKGRAY LEAYKPDFML DKMSDLLPIL SDMNRS