Tchem EPRS Bifunctional glutamate/proline--tRNA ligase

Protein Summary

Description

Multifunctional protein which is primarily part of the aminoacyl-tRNA synthetase multienzyme complex, also know as multisynthetase complex, that catalyzes the attachment of the cognate amino acid to the corresponding tRNA in a two-step reaction: the amino acid is first activated by ATP to form a covalent intermediate with AMP and is then transferred to the acceptor end of the cognate tRNA (PubMed:1756734, PubMed:24100331, PubMed:23263184). The phosphorylation of EPRS, induced by interferon-gamma, dissociates the protein from the aminoacyl-tRNA synthetase multienzyme complex and recruits it to the GAIT complex that binds to stem loop-containing GAIT elements in the 3'-UTR of diverse inflammatory mRNAs (such as ceruplasmin), suppressing their translation. Interferon-gamma can therefore redirect, in specific cells, the EPRS function from protein synthesis to translation inhibition (PubMed:15479637, PubMed:23071094). Also functions as an effector of the mTORC1 signaling pathway by promoting, through SLC27A1, the uptake of long-chain fatty acid by adipocytes. Thereby, it also plays a role in fat metabolism and more indirectly influences lifespan (PubMed:28178239). Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. The protein encoded by this gene is a multifunctional aminoacyl-tRNA synthetase that catalyzes the aminoacylation of glutamic acid and proline tRNA species. Alternative splicing has been observed for this gene, but the full-length nature and biological validity of the variant have not been determined. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• P07814
• A0AVA9
• B9EGH3
• Q05BP6
• Q05DF8
• Q5DSM1
• Q5H9S5
• Q6PD57
• Q86X73

Gene Name

• EPRS

Ensembl ID

• ENST00000366923
• ENSP00000355890
• ENSG00000136628

Symbol

• GLNS
• PARS
• QARS
• QPRS
• EARS
• PARS
• QARS
• QPRS
• HLD15
• PIG32
• GLUPRORS

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
interacting protein	1
protein domain	1
disease perturbation	0.99
hub protein	0.96
molecular function	0.95

Protein Classes

PANTHER Classes

Protein / Ligase / Bifunctional Glutamate/proline--trna Ligase

DTO Classes

Protein / Enzyme / Ligase / Bifunctional Glutamate/proline--trna Ligase

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 1965.45   (req: < 5)

Gene RIFs: 14   (req: <= 3)

Antibodies: 165   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 1965.45   (req: >= 5)

Gene RIFs: 14   (req: > 3)

Antibodies: 165   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 16

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 1

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0