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Database: UniProt
Entry: A0A1H0QT99_9PSED
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ID   A0A1H0QT99_9PSED        Unreviewed;       173 AA.
AC   A0A1H0QT99;
DT   05-DEC-2018, integrated into UniProtKB/TrEMBL.
DT   05-DEC-2018, sequence version 1.
DT   24-JAN-2024, entry version 12.
DE   RecName: Full=tRNA-specific adenosine deaminase {ECO:0000256|HAMAP-Rule:MF_00972};
DE            EC=3.5.4.33 {ECO:0000256|HAMAP-Rule:MF_00972};
GN   Name=tadA {ECO:0000256|HAMAP-Rule:MF_00972};
GN   ORFNames=SAMN05216193_12522 {ECO:0000313|EMBL:SDP20573.1};
OS   Pseudomonas jinjuensis.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Pseudomonadales;
OC   Pseudomonadaceae; Pseudomonas.
OX   NCBI_TaxID=198616 {ECO:0000313|EMBL:SDP20573.1, ECO:0000313|Proteomes:UP000242957};
RN   [1] {ECO:0000313|Proteomes:UP000242957}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JCM 21621 {ECO:0000313|Proteomes:UP000242957};
RA   Varghese N., Submissions S.;
RL   Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the deamination of adenosine to inosine at the
CC       wobble position 34 of tRNA(Arg2). {ECO:0000256|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:0000256|ARBA:ARBA00001103, ECO:0000256|HAMAP-
CC         Rule:MF_00972};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_00972};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000256|HAMAP-Rule:MF_00972};
CC   -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738, ECO:0000256|HAMAP-
CC       Rule:MF_00972}.
CC   -!- SIMILARITY: Belongs to the cytidine and deoxycytidylate deaminase
CC       family. ADAT2 subfamily. {ECO:0000256|ARBA:ARBA00010669}.
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DR   EMBL; FNIJ01000025; SDP20573.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1H0QT99; -.
DR   STRING; 198616.SAMN05216193_12522; -.
DR   Proteomes; UP000242957; Unassembled WGS sequence.
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   CDD; cd01285; nucleoside_deaminase; 1.
DR   Gene3D; 3.40.140.10; Cytidine Deaminase, domain 2; 1.
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   PANTHER; PTHR11079; CYTOSINE DEAMINASE FAMILY MEMBER; 1.
DR   PANTHER; PTHR11079:SF179; TRNA(ADENINE(34)) DEAMINASE, CHLOROPLASTIC; 1.
DR   Pfam; PF14437; MafB19-deam; 1.
DR   SUPFAM; SSF53927; Cytidine deaminase-like; 1.
DR   PROSITE; PS00903; CYT_DCMP_DEAMINASES_1; 1.
DR   PROSITE; PS51747; CYT_DCMP_DEAMINASES_2; 1.
PE   3: Inferred from homology;
KW   Hydrolase {ECO:0000256|HAMAP-Rule:MF_00972};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_00972}; Reference proteome {ECO:0000313|Proteomes:UP000242957};
KW   tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW   Rule:MF_00972};
KW   Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_00972}.
FT   DOMAIN          23..132
FT                   /note="CMP/dCMP-type deaminase"
FT                   /evidence="ECO:0000259|PROSITE:PS51747"
FT   ACT_SITE        76
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00972"
FT   BINDING         74
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00972"
FT   BINDING         104
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00972"
FT   BINDING         107
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00972"
SQ   SEQUENCE   173 AA;  18798 MW;  264204A61D631DCA CRC64;
     MSVQTNAKGH RTVKGVRFIV DRSRDRHFMQ EALVEAEKAA ALGEVPVGAV LVRDGEIIGR
     GFNQPITSHD PSAHAEMVAI RMAAAAAANY RLPGSTLYVT LEPCSMCSGL IVHSRIQRLV
     YGATEPKSGV VESHGRFFAQ EFLNHKVVFE GGVMAEECGA VLSAFFKARR KKS
//
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