ID   APAH_ECOUT              Reviewed;         282 AA.
AC   Q1RGE8;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 84.
DE   RecName: Full=Bis(5'-nucleosyl)-tetraphosphatase, symmetrical {ECO:0000255|HAMAP-Rule:MF_00199};
DE            EC=3.6.1.41 {ECO:0000255|HAMAP-Rule:MF_00199};
DE   AltName: Full=Ap4A hydrolase {ECO:0000255|HAMAP-Rule:MF_00199};
DE   AltName: Full=Diadenosine 5',5'''-P1,P4-tetraphosphate pyrophosphohydrolase {ECO:0000255|HAMAP-Rule:MF_00199};
DE   AltName: Full=Diadenosine tetraphosphatase {ECO:0000255|HAMAP-Rule:MF_00199};
GN   Name=apaH {ECO:0000255|HAMAP-Rule:MF_00199}; OrderedLocusNames=UTI89_C0056;
OS   Escherichia coli (strain UTI89 / UPEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=364106;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTI89 / UPEC;
RX   PubMed=16585510; DOI=10.1073/pnas.0600938103;
RA   Chen S.L., Hung C.-S., Xu J., Reigstad C.S., Magrini V., Sabo A.,
RA   Blasiar D., Bieri T., Meyer R.R., Ozersky P., Armstrong J.R., Fulton R.S.,
RA   Latreille J.P., Spieth J., Hooton T.M., Mardis E.R., Hultgren S.J.,
RA   Gordon J.I.;
RT   "Identification of genes subject to positive selection in uropathogenic
RT   strains of Escherichia coli: a comparative genomics approach.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:5977-5982(2006).
CC   -!- FUNCTION: Hydrolyzes diadenosine 5',5'''-P1,P4-tetraphosphate to yield
CC       ADP. {ECO:0000255|HAMAP-Rule:MF_00199}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + P(1),P(4)-bis(5'-adenosyl) tetraphosphate = 2 ADP + 2
CC         H(+); Xref=Rhea:RHEA:24252, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:58141, ChEBI:CHEBI:456216; EC=3.6.1.41;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00199};
CC   -!- SIMILARITY: Belongs to the Ap4A hydrolase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00199}.
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DR   EMBL; CP000243; ABE05566.1; -; Genomic_DNA.
DR   RefSeq; WP_000257201.1; NC_007946.1.
DR   AlphaFoldDB; Q1RGE8; -.
DR   SMR; Q1RGE8; -.
DR   EnsemblBacteria; ABE05566; ABE05566; UTI89_C0056.
DR   KEGG; eci:UTI89_C0056; -.
DR   HOGENOM; CLU_056184_2_0_6; -.
DR   OMA; INAFTRM; -.
DR   Proteomes; UP000001952; Chromosome.
DR   GO; GO:0008803; F:bis(5'-nucleosyl)-tetraphosphatase (symmetrical) activity; IEA:UniProtKB-UniRule.
DR   CDD; cd07422; MPP_ApaH; 1.
DR   Gene3D; 3.60.21.10; -; 1.
DR   HAMAP; MF_00199; ApaH; 1.
DR   InterPro; IPR004617; ApaH.
DR   InterPro; IPR004843; Calcineurin-like_PHP_ApaH.
DR   InterPro; IPR029052; Metallo-depent_PP-like.
DR   Pfam; PF00149; Metallophos; 1.
DR   PIRSF; PIRSF000903; B5n-ttraPtase_sm; 1.
DR   SUPFAM; SSF56300; SSF56300; 1.
DR   TIGRFAMs; TIGR00668; apaH; 1.
PE   3: Inferred from homology;
KW   Hydrolase.
FT   CHAIN           1..282
FT                   /note="Bis(5'-nucleosyl)-tetraphosphatase, symmetrical"
FT                   /id="PRO_1000012059"
SQ   SEQUENCE   282 AA;  31567 MW;  6FA75DD260AE8290 CRC64;
     MATYLIGDVH GCYDELIALL HKVEFTPGKD TLWLTGDLVA RGPGSLDVLR YVKSLGDSVR
     LVLGNHDLHL LAVFAGISRN KPKDRLTPLL EAPDADELLN WLRRQPLLQI DKEKKLVMAH
     AGITPQWDLQ TAKECARDVE AVLSSDSYPF FLDAMYGDMP NNWSPELRGL GRLRFITNAF
     TRMRFCFPNG QLDMYSKESP EEAPAPLKPW FAIPGPVAEE YNIAFGHWAS LEGKGTPEGI
     YALDTGCCWG GTLTCLRWED KQYFVQPSNR HKDLSEGEAV AS