ID   APAH_ALIF1              Reviewed;         271 AA.
AC   Q5E866;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-MAR-2005, sequence version 1.
DT   25-MAY-2022, entry version 94.
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=VF_0285;
OS   Aliivibrio fischeri (strain ATCC 700601 / ES114) (Vibrio fischeri).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Aliivibrio.
OX   NCBI_TaxID=312309;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700601 / ES114;
RX   PubMed=15703294; DOI=10.1073/pnas.0409900102;
RA   Ruby E.G., Urbanowski M., Campbell J., Dunn A., Faini M., Gunsalus R.,
RA   Lostroh P., Lupp C., McCann J., Millikan D., Schaefer A., Stabb E.,
RA   Stevens A., Visick K., Whistler C., Greenberg E.P.;
RT   "Complete genome sequence of Vibrio fischeri: a symbiotic bacterium with
RT   pathogenic congeners.";
RL   Proc. Natl. Acad. Sci. U.S.A. 102:3004-3009(2005).
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; CP000020; AAW84780.1; -; Genomic_DNA.
DR   RefSeq; WP_011261098.1; NC_006840.2.
DR   RefSeq; YP_203668.1; NC_006840.2.
DR   AlphaFoldDB; Q5E866; -.
DR   SMR; Q5E866; -.
DR   STRING; 312309.VF_0285; -.
DR   EnsemblBacteria; AAW84780; AAW84780; VF_0285.
DR   KEGG; vfi:VF_0285; -.
DR   PATRIC; fig|312309.11.peg.279; -.
DR   eggNOG; COG0639; Bacteria.
DR   HOGENOM; CLU_056184_2_0_6; -.
DR   OMA; INAFTRM; -.
DR   OrthoDB; 900869at2; -.
DR   Proteomes; UP000000537; Chromosome I.
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; Reference proteome.
FT   CHAIN           1..271
FT                   /note="Bis(5'-nucleosyl)-tetraphosphatase, symmetrical"
FT                   /id="PRO_1000012103"
SQ   SEQUENCE   271 AA;  31075 MW;  C7C82C38E750703C CRC64;
     MATYFVGDIQ GCLDELLLLL ERVEFNREKD QLWLTGDLVA RGPKSLETLR FVKSLGNAAV
     TILGNHDLHL LAVSQGISRV KEKDKTAPIF TAPDSEELLT WLRHQPLLAV HSEYDIVMTH
     AGISPQWNMA TAIDCAREVE SVLLSDKWVL LLENMYENYP DTWDVTLSGI DRYRYIINAF
     TRMRFCHLDG RLDMECKLPP QDINSDELVP WFELENRLPL SHKVIFGHWA ALMGHDGNNV
     IALDTGCVWG EYMTMYRVDD GKYFTQKAIE Q