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TADA_RICFE
ID   TADA_RICFE              Reviewed;         144 AA.
AC   Q4UJW9;
DT   10-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   10-JUL-2007, sequence version 2.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=tRNA-specific adenosine deaminase {ECO:0000255|HAMAP-Rule:MF_00972};
DE            EC=3.5.4.33 {ECO:0000255|HAMAP-Rule:MF_00972};
GN   Name=tadA {ECO:0000255|HAMAP-Rule:MF_00972}; OrderedLocusNames=RF_1319;
OS   Rickettsia felis (strain ATCC VR-1525 / URRWXCal2) (Rickettsia azadi).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX   NCBI_TaxID=315456;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-1525 / URRWXCal2;
RX   PubMed=15984913; DOI=10.1371/journal.pbio.0030248;
RA   Ogata H., Renesto P., Audic S., Robert C., Blanc G., Fournier P.-E.,
RA   Parinello H., Claverie J.-M., Raoult D.;
RT   "The genome sequence of Rickettsia felis identifies the first putative
RT   conjugative plasmid in an obligate intracellular parasite.";
RL   PLoS Biol. 3:1-12(2005).
CC   -!- FUNCTION: Catalyzes the deamination of adenosine to inosine at the
CC       wobble position 34 of tRNA(Arg2). {ECO:0000255|HAMAP-Rule:MF_00972}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=adenosine(34) in tRNA + H(+) + H2O = inosine(34) in tRNA +
CC         NH4(+); Xref=Rhea:RHEA:43168, Rhea:RHEA-COMP:10373, Rhea:RHEA-
CC         COMP:10374, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:74411, ChEBI:CHEBI:82852; EC=3.5.4.33;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00972};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00972};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00972};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00972}.
CC   -!- SIMILARITY: Belongs to the cytidine and deoxycytidylate deaminase
CC       family. {ECO:0000255|HAMAP-Rule:MF_00972}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAY62170.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; CP000053; AAY62170.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q4UJW9; -.
DR   SMR; Q4UJW9; -.
DR   STRING; 315456.RF_1319; -.
DR   EnsemblBacteria; AAY62170; AAY62170; RF_1319.
DR   KEGG; rfe:RF_1319; -.
DR   eggNOG; COG0590; Bacteria.
DR   HOGENOM; CLU_025810_3_2_5; -.
DR   Proteomes; UP000008548; Chromosome.
DR   GO; GO:0052717; F:tRNA-specific adenosine-34 deaminase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0002100; P:tRNA wobble adenosine to inosine editing; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00972; tRNA_aden_deaminase; 1.
DR   InterPro; IPR016192; APOBEC/CMP_deaminase_Zn-bd.
DR   InterPro; IPR002125; CMP_dCMP_dom.
DR   InterPro; IPR016193; Cytidine_deaminase-like.
DR   InterPro; IPR028883; tRNA_aden_deaminase.
DR   Pfam; PF14437; MafB19-deam; 1.
DR   SUPFAM; SSF53927; SSF53927; 1.
DR   PROSITE; PS00903; CYT_DCMP_DEAMINASES_1; 1.
DR   PROSITE; PS51747; CYT_DCMP_DEAMINASES_2; 1.
PE   3: Inferred from homology;
KW   Hydrolase; Metal-binding; tRNA processing; Zinc.
FT   CHAIN           1..144
FT                   /note="tRNA-specific adenosine deaminase"
FT                   /id="PRO_0000293137"
FT   DOMAIN          1..116
FT                   /note="CMP/dCMP-type deaminase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01083"
FT   ACT_SITE        50
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00972"
FT   BINDING         48
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00972"
FT   BINDING         78
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00972"
FT   BINDING         81
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00972"
SQ   SEQUENCE   144 AA;  16249 MW;  7FCDFAC13806CA96 CRC64;
     MEQALKQAGI AFDKNEVPVG AVIVDRLNQK IIVSSHNNTE EKNNALYHAE IIAINEACNL
     ISSKNLNDYD IYVTLEPCAM CAAAIAHSRL KRLFYGASDS KHGAVESNLR YFNSSVCFYR
     PEIYSGILAE DSRLLMKEFF KRIR
 
 
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