EIF2AK4 (GCN2) is a metabolic-stress sensing protein kinase that phosphorylates the alpha subunit of eukaryotic translation initiation factor-2 in response to low amino acid availability. It plays a role as an activator of the integrated stress response required for adapatation to amino acid starvation. Mutations in the gene lead to pulmonary vennocclusive disease 2.
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Protein Aliases: eIF-2-alpha kinase GCN2; Eukaryotic translation initiation factor 2-alpha kinase 4; GCN2 eIF2alpha kinase; GCN2-like protein; general control nonderepressible 2
Gene Aliases: EIF2AK4; GCN2; KIAA1338; PVOD2
UniProt ID: (Human) Q9P2K8
Entrez Gene ID: (Human) 440275