B9KAP7 · DTD_THENN
- ProteinD-aminoacyl-tRNA deacylase
- Genedtd
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids149 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
An aminoacyl-tRNA editing enzyme that deacylates mischarged D-aminoacyl-tRNAs. Also deacylates mischarged glycyl-tRNA(Ala), protecting cells against glycine mischarging by AlaRS. Acts via tRNA-based rather than protein-based catalysis; rejects L-amino acids rather than detecting D-amino acids in the active site. By recycling D-aminoacyl-tRNA to D-amino acids and free tRNA molecules, this enzyme counteracts the toxicity associated with the formation of D-aminoacyl-tRNA entities in vivo and helps enforce protein L-homochirality.
Catalytic activity
- glycyl-tRNA(Ala) + H2O = glycine + H+ + tRNA(Ala)
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | D-aminoacyl-tRNA deacylase activity | |
Molecular Function | Gly-tRNA(Ala) hydrolase activity | |
Molecular Function | Ser(Gly)-tRNA(Ala) hydrolase activity | |
Molecular Function | tRNA binding | |
Biological Process | D-amino acid catabolic process |
Keywords
- Molecular function
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameD-aminoacyl-tRNA deacylase
- EC number
- Short namesDTD
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Thermotogota > Thermotogae > Thermotogales > Thermotogaceae > Thermotoga
Accessions
- Primary accessionB9KAP7
Proteomes
Subcellular Location
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Chain | PRO_1000146219 | 1-149 | D-aminoacyl-tRNA deacylase | |||
Sequence: MRAVVQRVNEAKVIVDEKVVGAIGKGLLVFVGVGKDDTEKDCEWLAEKVSGLRIFEDEEGKMNLSIMDVGGEVLVVSQFTLYGDCRRGKRPSFTEAAPPEKGKELYEKFVDLLEKKGLKVEKGIFRAHMHVHLVNDGPVTLLLDSSRLF |
Interaction
Structure
Family & Domains
Features
Showing features for motif.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Motif | 137-138 | Gly-cisPro motif, important for rejection of L-amino acids | ||||
Sequence: GP |
Domain
A Gly-cisPro motif from one monomer fits into the active site of the other monomer to allow specific chiral rejection of L-amino acids.
Sequence similarities
Belongs to the DTD family.
Phylogenomic databases
Family and domain databases
Sequence
- Sequence statusComplete
- Length149
- Mass (Da)16,589
- Last updated2009-03-24 v1
- ChecksumED6505109AC134B7
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CP000916 EMBL· GenBank· DDBJ | ACM24030.1 EMBL· GenBank· DDBJ | Genomic DNA |