A2BZG6 · GATB_PROM1
- ProteinAspartyl/glutamyl-tRNA(Asn/Gln) amidotransferase subunit B
- GenegatB
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids491 (go to sequence)
- Protein existenceInferred from homology
- Annotation score2/5
Function
function
Allows the formation of correctly charged Asn-tRNA(Asn) or Gln-tRNA(Gln) through the transamidation of misacylated Asp-tRNA(Asn) or Glu-tRNA(Gln) in organisms which lack either or both of asparaginyl-tRNA or glutaminyl-tRNA synthetases. The reaction takes place in the presence of glutamine and ATP through an activated phospho-Asp-tRNA(Asn) or phospho-Glu-tRNA(Gln).
Catalytic activity
- L-glutamyl-tRNA(Gln) + L-glutamine + ATP + H2O = L-glutaminyl-tRNA(Gln) + L-glutamate + ADP + phosphate + H+
- L-aspartyl-tRNA(Asn) + L-glutamine + ATP + H2O = L-asparaginyl-tRNA(Asn) + L-glutamate + ADP + phosphate + 2 H+
GO annotations
Aspect | Term | |
---|---|---|
Molecular Function | asparaginyl-tRNA synthase (glutamine-hydrolyzing) activity | |
Molecular Function | ATP binding | |
Molecular Function | glutaminyl-tRNA synthase (glutamine-hydrolyzing) activity | |
Biological Process | glutaminyl-tRNAGln biosynthesis via transamidation | |
Biological Process | translation |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameAspartyl/glutamyl-tRNA(Asn/Gln) amidotransferase subunit B
- EC number
- Short namesAsp/Glu-ADT subunit B
Gene names
Organism names
- Strain
- Taxonomic lineageBacteria > Cyanobacteriota > Cyanophyceae > Synechococcales > Prochlorococcaceae > Prochlorococcus
Accessions
- Primary accessionA2BZG6
Proteomes
PTM/Processing
Features
Showing features for chain.
Type | ID | Position(s) | Description | ||
---|---|---|---|---|---|
Chain | PRO_1000016016 | 1-491 | Aspartyl/glutamyl-tRNA(Asn/Gln) amidotransferase subunit B | ||
Interaction
Subunit
Heterotrimer of A, B and C subunits.
Structure
Sequence
- Sequence statusComplete
- Length491
- Mass (Da)54,760
- Last updated2007-02-20 v1
- MD5 ChecksumFF192C8A76EAB4D9A1C27B63081AA806
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
CP000553 EMBL· GenBank· DDBJ | ABM74626.1 EMBL· GenBank· DDBJ | Genomic DNA |