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DTD_MAGMM
ID   DTD_MAGMM               Reviewed;         151 AA.
AC   A0L7S8;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   12-DEC-2006, sequence version 1.
DT   25-MAY-2022, entry version 83.
DE   RecName: Full=D-aminoacyl-tRNA deacylase {ECO:0000255|HAMAP-Rule:MF_00518};
DE            Short=DTD {ECO:0000255|HAMAP-Rule:MF_00518};
DE            EC=3.1.1.96 {ECO:0000255|HAMAP-Rule:MF_00518};
DE   AltName: Full=Gly-tRNA(Ala) deacylase {ECO:0000255|HAMAP-Rule:MF_00518};
GN   Name=dtd {ECO:0000255|HAMAP-Rule:MF_00518}; OrderedLocusNames=Mmc1_1512;
OS   Magnetococcus marinus (strain ATCC BAA-1437 / JCM 17883 / MC-1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Magnetococcales;
OC   Magnetococcaceae; Magnetococcus.
OX   NCBI_TaxID=156889;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1437 / JCM 17883 / MC-1;
RX   PubMed=19465526; DOI=10.1128/aem.02874-08;
RA   Schubbe S., Williams T.J., Xie G., Kiss H.E., Brettin T.S., Martinez D.,
RA   Ross C.A., Schuler D., Cox B.L., Nealson K.H., Bazylinski D.A.;
RT   "Complete genome sequence of the chemolithoautotrophic marine magnetotactic
RT   coccus strain MC-1.";
RL   Appl. Environ. Microbiol. 75:4835-4852(2009).
CC   -!- FUNCTION: An aminoacyl-tRNA editing enzyme that deacylates mischarged
CC       D-aminoacyl-tRNAs. Also deacylates mischarged glycyl-tRNA(Ala),
CC       protecting cells against glycine mischarging by AlaRS. Acts via tRNA-
CC       based rather than protein-based catalysis; rejects L-amino acids rather
CC       than detecting D-amino acids in the active site. By recycling D-
CC       aminoacyl-tRNA to D-amino acids and free tRNA molecules, this enzyme
CC       counteracts the toxicity associated with the formation of D-aminoacyl-
CC       tRNA entities in vivo and helps enforce protein L-homochirality.
CC       {ECO:0000255|HAMAP-Rule:MF_00518}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=glycyl-tRNA(Ala) + H2O = glycine + H(+) + tRNA(Ala);
CC         Xref=Rhea:RHEA:53744, Rhea:RHEA-COMP:9657, Rhea:RHEA-COMP:13640,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:57305,
CC         ChEBI:CHEBI:78442, ChEBI:CHEBI:78522; EC=3.1.1.96;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00518};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a D-aminoacyl-tRNA + H2O = a D-alpha-amino acid + a tRNA +
CC         H(+); Xref=Rhea:RHEA:13953, Rhea:RHEA-COMP:10123, Rhea:RHEA-
CC         COMP:10124, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:59871,
CC         ChEBI:CHEBI:78442, ChEBI:CHEBI:79333; EC=3.1.1.96;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00518};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00518}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00518}.
CC   -!- DOMAIN: A Gly-cisPro motif from one monomer fits into the active site
CC       of the other monomer to allow specific chiral rejection of L-amino
CC       acids. {ECO:0000255|HAMAP-Rule:MF_00518}.
CC   -!- SIMILARITY: Belongs to the DTD family. {ECO:0000255|HAMAP-
CC       Rule:MF_00518}.
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DR   EMBL; CP000471; ABK44021.1; -; Genomic_DNA.
DR   RefSeq; WP_011713172.1; NC_008576.1.
DR   AlphaFoldDB; A0L7S8; -.
DR   SMR; A0L7S8; -.
DR   STRING; 156889.Mmc1_1512; -.
DR   EnsemblBacteria; ABK44021; ABK44021; Mmc1_1512.
DR   KEGG; mgm:Mmc1_1512; -.
DR   eggNOG; COG1490; Bacteria.
DR   HOGENOM; CLU_076901_1_1_5; -.
DR   OMA; GVFQAHM; -.
DR   OrthoDB; 1862614at2; -.
DR   Proteomes; UP000002586; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0051499; F:D-aminoacyl-tRNA deacylase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0106026; F:Gly-tRNA(Ala) hydrolase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0043908; F:Ser(Gly)-tRNA(Ala) hydrolase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019478; P:D-amino acid catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.50.80.10; -; 1.
DR   HAMAP; MF_00518; Deacylase_Dtd; 1.
DR   InterPro; IPR003732; Daa-tRNA_deacyls_DTD.
DR   InterPro; IPR023509; DTD-like_sf.
DR   PANTHER; PTHR10472; PTHR10472; 1.
DR   Pfam; PF02580; Tyr_Deacylase; 1.
DR   SUPFAM; SSF69500; SSF69500; 1.
DR   TIGRFAMs; TIGR00256; TIGR00256; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Hydrolase; Reference proteome; RNA-binding; tRNA-binding.
FT   CHAIN           1..151
FT                   /note="D-aminoacyl-tRNA deacylase"
FT                   /id="PRO_1000050851"
FT   MOTIF           138..139
FT                   /note="Gly-cisPro motif, important for rejection of L-amino
FT                   acids"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00518"
SQ   SEQUENCE   151 AA;  16691 MW;  5A18585D00B36E09 CRC64;
     MRALVQRVSE ASVVVEGQVV GAVERGLLVL LAVERGDGEK QLEEMVRKVA RLRIFPDEAG
     KMNLSVKDIE GEVLVVSQFT LAADMRKGYR PSFSLAEEPK RAEALYLDYC QRLNQHEGVV
     VAQGLFGADM QVKLINDGPV TIWLDLPPQE G
 
 
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