ID   APHA_PROMH              Reviewed;         237 AA.
AC   B4ET41;
DT   25-JAN-2012, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   27-MAR-2024, entry version 79.
DE   RecName: Full=Class B acid phosphatase {ECO:0000250|UniProtKB:P0AE22, ECO:0000312|EMBL:CAR41704.1};
DE            Short=CBAP {ECO:0000250|UniProtKB:P0AE22};
DE            EC=3.1.3.2 {ECO:0000250|UniProtKB:P0AE22, ECO:0000312|EMBL:CAR41704.1};
DE   Flags: Precursor;
GN   Name=aphA {ECO:0000312|EMBL:CAR41704.1}; OrderedLocusNames=PMI0729;
OS   Proteus mirabilis (strain HI4320).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Morganellaceae; Proteus.
OX   NCBI_TaxID=529507;
RN   [1] {ECO:0000312|EMBL:CAR41704.1}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HI4320 {ECO:0000269|PubMed:18375554};
RX   PubMed=18375554; DOI=10.1128/jb.01981-07;
RA   Pearson M.M., Sebaihia M., Churcher C., Quail M.A., Seshasayee A.S.,
RA   Luscombe N.M., Abdellah Z., Arrosmith C., Atkin B., Chillingworth T.,
RA   Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA   Rabbinowitsch E., Walker D., Whithead S., Thomson N.R., Rather P.N.,
RA   Parkhill J., Mobley H.L.T.;
RT   "Complete genome sequence of uropathogenic Proteus mirabilis, a master of
RT   both adherence and motility.";
RL   J. Bacteriol. 190:4027-4037(2008).
CC   -!- FUNCTION: Dephosphorylates several organic phosphate monoesters. Also
CC       has a phosphotransferase activity catalyzing the transfer of low-energy
CC       phosphate groups from organic phosphate monoesters to free hydroxyl
CC       groups of various organic compounds (By similarity).
CC       {ECO:0000250|UniProtKB:P0AE22}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a phosphate monoester + H2O = an alcohol + phosphate;
CC         Xref=Rhea:RHEA:15017, ChEBI:CHEBI:15377, ChEBI:CHEBI:30879,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:67140; EC=3.1.3.2;
CC         Evidence={ECO:0000250|UniProtKB:P0AE22};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:P0AE22};
CC       Note=Binds 1 Mg(2+) ion per subunit. {ECO:0000250|UniProtKB:P0AE22};
CC   -!- SUBUNIT: Homotetramer. {ECO:0000250|UniProtKB:P0AE22}.
CC   -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000250|UniProtKB:P0AE22}.
CC   -!- SIMILARITY: Belongs to the class B bacterial acid phosphatase family.
CC       {ECO:0000250|UniProtKB:P0AE22}.
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DR   EMBL; AM942759; CAR41704.1; -; Genomic_DNA.
DR   RefSeq; WP_004247637.1; NC_010554.1.
DR   AlphaFoldDB; B4ET41; -.
DR   SMR; B4ET41; -.
DR   EnsemblBacteria; CAR41704; CAR41704; PMI0729.
DR   GeneID; 6803528; -.
DR   KEGG; pmr:PMI0729; -.
DR   eggNOG; COG3700; Bacteria.
DR   HOGENOM; CLU_081496_0_0_6; -.
DR   Proteomes; UP000008319; Chromosome.
DR   GO; GO:0030288; C:outer membrane-bounded periplasmic space; IEA:InterPro.
DR   GO; GO:0003993; F:acid phosphatase activity; IEA:UniProtKB-EC.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   Gene3D; 3.40.50.1000; HAD superfamily/HAD-like; 1.
DR   InterPro; IPR005519; Acid_phosphat_B-like.
DR   InterPro; IPR036412; HAD-like_sf.
DR   InterPro; IPR010025; HAD-SF_ppase_IIIB_AphA.
DR   InterPro; IPR023214; HAD_sf.
DR   NCBIfam; TIGR01672; AphA; 1.
DR   Pfam; PF03767; Acid_phosphat_B; 1.
DR   PIRSF; PIRSF017818; Acid_Ptase_B; 1.
DR   SFLD; SFLDG01127; C1.3:_Acid_Phosphatase_Like; 1.
DR   SFLD; SFLDS00003; Haloacid_Dehalogenase; 1.
DR   SUPFAM; SSF56784; HAD-like; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Magnesium; Metal-binding; Periplasm; Signal.
FT   SIGNAL          1..23
FT                   /evidence="ECO:0000255"
FT   CHAIN           24..237
FT                   /note="Class B acid phosphatase"
FT                   /evidence="ECO:0000255"
FT                   /id="PRO_0000415228"
FT   ACT_SITE        69
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000250|UniProtKB:P0AE22"
FT   ACT_SITE        71
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250|UniProtKB:P0AE22"
FT   BINDING         69
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P0AE22"
FT   BINDING         71
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P0AE22"
FT   BINDING         137..138
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:P0AE22"
FT   BINDING         177
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:P0AE22"
FT   BINDING         192
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:P0AE22"
SQ   SEQUENCE   237 AA;  26418 MW;  330F7E7A4CA0FCE0 CRC64;
     MRKVTLTLSA IALALSLNGA AMAKVHMPEV VSPGVTVTEL AHQQPIKWVS VAEIEKSLEG
     QAPMAVGFDI DDTVLFSSPG FYRGKLEYSP NDFSYLKNPE FWEKMNNEWD KFSMPKQVGI
     DLVQMHLKRG DTVYFITGRT QTKTETVTKY VQEGLNIPAD KMQPVIFAGD QPGANNKVSW
     MRDHKLKIYY GDADADIAAA DELNIRGIRI LRAANSSYQP LPKAGQFGEE VVINSEY
//