A0A258TPD9 · A0A258TPD9_9PROT
- ProteinAspartate--tRNA(Asp/Asn) ligase
- GeneaspS
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids588 (go to sequence)
- Protein existenceInferred from homology
- Annotation score3/5
Function
function
Aspartyl-tRNA synthetase with relaxed tRNA specificity since it is able to aspartylate not only its cognate tRNA(Asp) but also tRNA(Asn). Reaction proceeds in two steps: L-aspartate is first activated by ATP to form Asp-AMP and then transferred to the acceptor end of tRNA(Asp/Asn).
Catalytic activity
- tRNA(Asx) + L-aspartate + ATP = L-aspartyl-tRNA(Asx) + AMP + diphosphate
Features
Showing features for site, binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Site | 30 | Important for tRNA non-discrimination | ||||
Sequence: H | ||||||
Site | 81 | Important for tRNA non-discrimination | ||||
Sequence: G | ||||||
Binding site | 172 | L-aspartate (UniProtKB | ChEBI) | ||||
Sequence: E | ||||||
Binding site | 218 | L-aspartate (UniProtKB | ChEBI) | ||||
Sequence: R | ||||||
Binding site | 218-220 | ATP (UniProtKB | ChEBI) | ||||
Sequence: RDE | ||||||
Binding site | 227 | ATP (UniProtKB | ChEBI) | ||||
Sequence: Q | ||||||
Binding site | 451 | L-aspartate (UniProtKB | ChEBI) | ||||
Sequence: H | ||||||
Binding site | 485 | ATP (UniProtKB | ChEBI) | ||||
Sequence: E | ||||||
Binding site | 492 | L-aspartate (UniProtKB | ChEBI) | ||||
Sequence: R | ||||||
Binding site | 537-540 | ATP (UniProtKB | ChEBI) | ||||
Sequence: GLDR |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | aspartate-tRNA ligase activity | |
Molecular Function | aspartate-tRNA(Asn) ligase activity | |
Molecular Function | ATP binding | |
Molecular Function | nucleic acid binding | |
Biological Process | aspartyl-tRNA aminoacylation |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameAspartate--tRNA(Asp/Asn) ligase
- EC number
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Pseudomonadota > Hydrogenophilia > Hydrogenophilales
Accessions
- Primary accessionA0A258TPD9
Proteomes
Subcellular Location
Interaction
Subunit
Homodimer.
Structure
Family & Domains
Features
Showing features for domain, region.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 139-558 | Aminoacyl-transfer RNA synthetases class-II family profile | ||||
Sequence: MRLRYRVSKLMRDYLDQQGFLEIETPMLTRSTPEGARDYLVPSRVHDGMFYALPQSPQLFKQLLMVAGYDRYFQLTKCFRDEDLRADRQPEFTQVDLETSFMGEEEIMTLVEGMIRDMFKKAQDIDLPNPFPRMTYAEAMGRYGSDKPDMRVTLEITELTEAMKDVDFKVFSGPANDPTGRVAVLRVPKGAEISRGEIDGYTEFAKIYGAKGLAWIKVNEMAKGRDGLQSPIVKNIHDAALSAILERTGAQDGDILFFGADKAKVVNDALGALRLKIGHEKGHVDGRAWAPLWVLDFPMFERNEDEGRWDALHHPFTAPKDGHEDYLSSNPGAALSKAYDMVLNGWEVGGGSVRIHRQEVQEKVFAALNIGEEERREKFGFLLDALQYGAPPHGGLAFGLDRLVTLMTGAESIRDVIAFP | ||||||
Region | 196-199 | Aspartate | ||||
Sequence: QLFK |
Sequence similarities
Belongs to the class-II aminoacyl-tRNA synthetase family. Type 1 subfamily.
Family and domain databases
Sequence
- Sequence statusComplete
- Length588
- Mass (Da)66,441
- Last updated2017-12-20 v1
- Checksum5A822528C2929179