ID   APAH_ACIET              Reviewed;         281 AA.
AC   B9MFH8;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 71.
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=Dtpsy_1064;
OS   Acidovorax ebreus (strain TPSY) (Diaphorobacter sp. (strain TPSY)).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Comamonadaceae; Diaphorobacter.
OX   NCBI_TaxID=535289;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TPSY;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA   Goodwin L., Pitluck S., Chertkov O., Brettin T., Detter J.C., Han C.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N., Coates J.D.;
RT   "Complete sequence of Diaphorobacter sp. TPSY.";
RL   Submitted (JAN-2009) to the EMBL/GenBank/DDBJ databases.
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; CP001392; ACM32541.1; -; Genomic_DNA.
DR   RefSeq; WP_015912765.1; NC_011992.1.
DR   AlphaFoldDB; B9MFH8; -.
DR   SMR; B9MFH8; -.
DR   STRING; 535289.Dtpsy_1064; -.
DR   EnsemblBacteria; ACM32541; ACM32541; Dtpsy_1064.
DR   KEGG; dia:Dtpsy_1064; -.
DR   eggNOG; COG0639; Bacteria.
DR   HOGENOM; CLU_056184_1_0_4; -.
DR   OMA; INAFTRM; -.
DR   OrthoDB; 900869at2; -.
DR   Proteomes; UP000000450; 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..281
FT                   /note="Bis(5'-nucleosyl)-tetraphosphatase, symmetrical"
FT                   /id="PRO_1000124449"
SQ   SEQUENCE   281 AA;  31034 MW;  E15525DFF48BC3FA CRC64;
     MALYCVGDIQ GCDDAFERLL ATIGFSPSRD TLYVLGDLVN RGPHSAAVLR RCITLGDSVR
     PLLGNHDLHL LAAAYGTRRP SRRDTLQDIL LAPDRDEMLE WLRHQPLARR VHHGGGDLLM
     VHAGVLPQWT AEETLAYAGE VEAVLQSREF AGFLQQMYGN SPDLWSPELQ GTDRLRVIVN
     ALTRMRFCSP EGRMDFESTE SASEAPPGLV PWFDAPGRRT LNTLIAFGHW STLGWLDRAD
     VLGLDTGCVW GGCLSAVRFG TTLADRERCH VECPQAQMPG A