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