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Tchem
EIF2AK1
Eukaryotic translation initiation factor 2-alpha kinase 1

Protein Summary
Description
Inhibits protein synthesis at the translation initiation level, in response to various stress conditions, including oxidative stress, heme deficiency, osmotic shock and heat shock. Exerts its function through the phosphorylation of EIF2S1 at 'Ser-48' and 'Ser-51', thus preventing its recycling. Binds hemin forming a 1:1 complex through a cysteine thiolate and histidine nitrogenous coordination. This binding occurs with moderate affinity, allowing it to sense the heme concentration within the cell. Thanks to this unique heme-sensing capacity, plays a crucial role to shut off protein synthesis during acute heme-deficient conditions. In red blood cells (RBCs), controls hemoglobin synthesis ensuring a coordinated regulation of the synthesis of its heme and globin moieties. Thus plays an essential protective role for RBC survival in anemias of iron deficiency. Similarly, in hepatocytes, involved in heme-mediated translational control of CYP2B and CYP3A and possibly other hepatic P450 cytoch ...more
Illumination Graph
Knowledge Table
Most Knowledge About
Knowledge Value (0 to 1 scale)
kinase perturbation
0.99
transcription factor perturbation
0.99
molecular function
0.97
disease perturbation
0.95
virus perturbation
0.76


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: 81.48   (req: < 5)
Gene RIFs: 12   (req: <= 3)
Antibodies: 288   (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: 81.48   (req: >= 5)
Gene RIFs: 12   (req: > 3)
Antibodies: 288   (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 Ligands: 4
Tclin

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

Active Drug: 0