A0AAJ1BLL0 · A0AAJ1BLL0_LIMRT
- ProteinValine--tRNA ligase
- GenevalS
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids884 (go to sequence)
- Protein existenceInferred from homology
- Annotation score2/5
Function
function
Catalyzes the attachment of valine to tRNA(Val). As ValRS can inadvertently accommodate and process structurally similar amino acids such as threonine, to avoid such errors, it has a 'posttransfer' editing activity that hydrolyzes mischarged Thr-tRNA(Val) in a tRNA-dependent manner.
Catalytic activity
- ATP + L-valine + tRNA(Val) = AMP + diphosphate + L-valyl-tRNA(Val)
Features
Showing features for binding site.
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | ligase activity |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameValine--tRNA ligase
- EC number
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Bacillota > Bacilli > Lactobacillales > Lactobacillaceae > Limosilactobacillus
Accessions
- Primary accessionA0AAJ1BLL0
Proteomes
Subcellular Location
Interaction
Subunit
Monomer.
Structure
Family & Domains
Features
Showing features for domain, motif, coiled coil.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Domain | 19-568 | Aminoacyl-tRNA synthetase class Ia | ||||
Sequence: RYQWWIDQGFFKPSGDKKAHPYSIVIPPPNVTGKLHLGHAWDTTLQDMIIRQKRMQGYDVLWVPGMDHAGIATQAKVEARLRKQGISRYDLGRDKFVQQVWDWKDEYADIIHQQWAKMGISVDYDRERFTLDEGLNKAVRKVFVDLYNKGLIYRGTYIINWDPQARTALSDIEVIHKDDKGAFYHVKYPFTDGTTFNGKDYIEIATTRPETMFGDEAVAVNPNDERYKDLVGKKVMVPLVNREIEIIADDYVTPEFGTGMVKITPAHDPNDFKVGKRHNLPELNTMNEDATMNENAGKYEGMDRFEAREAIVKDLQDQGYMLKVDPIVHSVGHSERTGVQVEARLSTQWFVKMKPLAEAALKNQDTDDRVNFVPERFEHTFTQWMENIHDWVISRQLWWGHRIPAWYNKQTGEVYVGMEAPKDAENWEQDKDVLDTWFSSALWPFSTMGWPNTDSADFKRYFPTNTLVTGYDIIFFWVSRMIFQSLEFTGRAPFKNVLLHGLIRDEQGRKMSKSLGNGIDPMDVIKKYGVDALRWFLITGSTPGQDIRFS | ||||||
Motif | 47-57 | 'HIGH' region | ||||
Sequence: PNVTGKLHLGH | ||||||
Motif | 528-532 | 'KMSKS' region | ||||
Sequence: KMSKS | ||||||
Domain | 611-757 | Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase anticodon-binding | ||||
Sequence: DRWILSRLNATVKQVNEQFDKFEFGEAGRALYNFIWNDFCDWYIEMTKEKLNNGTDEEKNDTKNILGYVLDQTLKMLHPIMPFVTEKLWQSMPHDGESIMVADYPVANAELDDPAATEQMNSLIELIKAVRNIRNEANAPMSKPVDI | ||||||
Coiled coil | 815-884 | |||||
Sequence: LVDLDEERDRMEKEIAKLEKEVERSQKKLGNEKFVNNAPEKVVEAERQKATEWQQKLAAAKERLQSLQQA | ||||||
Domain | 817-882 | Valyl-tRNA synthetase tRNA-binding arm | ||||
Sequence: DLDEERDRMEKEIAKLEKEVERSQKKLGNEKFVNNAPEKVVEAERQKATEWQQKLAAAKERLQSLQ |
Domain
The C-terminal coiled-coil domain is crucial for aminoacylation activity.
ValRS has two distinct active sites: one for aminoacylation and one for editing. The misactivated threonine is translocated from the active site to the editing site.
Sequence similarities
Belongs to the class-I aminoacyl-tRNA synthetase family. ValS type 1 subfamily.
Keywords
- Domain
Family and domain databases
Sequence
- Sequence statusComplete
- Length884
- Mass (Da)102,228
- Last updated2024-07-24 v1
- Checksum5C2A6533084CD74B