DTD_LACDA
ID DTD_LACDA Reviewed; 145 AA.
AC Q1GAH0;
DT 31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT 27-JUN-2006, sequence version 1.
DT 03-AUG-2022, entry version 86.
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=Ldb0886;
OS Lactobacillus delbrueckii subsp. bulgaricus (strain ATCC 11842 / DSM 20081
OS / BCRC 10696 / JCM 1002 / NBRC 13953 / NCIMB 11778 / NCTC 12712 / WDCM
OS 00102 / Lb 14).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC Lactobacillus.
OX NCBI_TaxID=390333;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 11842 / DSM 20081 / BCRC 10696 / JCM 1002 / NBRC 13953 / NCIMB
RC 11778 / NCTC 12712 / WDCM 00102 / Lb 14;
RX PubMed=16754859; DOI=10.1073/pnas.0603024103;
RA van de Guchte M., Penaud S., Grimaldi C., Barbe V., Bryson K., Nicolas P.,
RA Robert C., Oztas S., Mangenot S., Couloux A., Loux V., Dervyn R., Bossy R.,
RA Bolotin A., Batto J.-M., Walunas T., Gibrat J.-F., Bessieres P.,
RA Weissenbach J., Ehrlich S.D., Maguin E.;
RT "The complete genome sequence of Lactobacillus bulgaricus reveals extensive
RT and ongoing reductive evolution.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:9274-9279(2006).
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; CR954253; CAI97707.1; -; Genomic_DNA.
DR RefSeq; WP_003619905.1; NZ_JQAV01000008.1.
DR AlphaFoldDB; Q1GAH0; -.
DR SMR; Q1GAH0; -.
DR STRING; 390333.Ldb0886; -.
DR EnsemblBacteria; CAI97707; CAI97707; Ldb0886.
DR GeneID; 66399824; -.
DR KEGG; ldb:Ldb0886; -.
DR eggNOG; COG1490; Bacteria.
DR HOGENOM; CLU_076901_1_0_9; -.
DR OMA; GVFQAHM; -.
DR BioCyc; LDEL390333:LDB_RS03895-MON; -.
DR Proteomes; UP000001259; 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..145
FT /note="D-aminoacyl-tRNA deacylase"
FT /id="PRO_0000259288"
FT MOTIF 137..138
FT /note="Gly-cisPro motif, important for rejection of L-amino
FT acids"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00518"
SQ SEQUENCE 145 AA; 15915 MW; D9DA817BEC928205 CRC64;
MRVVIQRVNH AAVRIDGETV GQIQKGLLLL VGLAEGDGEE QVVKAADKIA KMRIFEDEAG
KTNLGIKDVG GQILSVSQFT LLADTKRGNR PSFVHAMRPP KSSQLWEEFN QELVKRGLTV
ETGEFGADMK VELENDGPFT IVLDL
