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EIF2a (Eukaryotic translation initiation factor 2A) is a heterotrimer composed of three subunits (alpha, beta, and gamma). This translation initiation factor drives binding of initiator methionyl-tRNA to the 40S ribosome in an AUG-dependent manner to form the 43S pre-initiation complex. The polypeptide can be phosphorylated by related protein kinases activated in response to stress. Phosphorylated EIF2A inhibits EIF2B activity and prevents guanine nucleotide exchange.
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Protein Aliases: eIF-2-alpha; EIF-2A; EIF-2alpha; eIF2 alpha; Eukaryotic translation initiation factor 2 subunit 1; Eukaryotic translation initiation factor 2 subunit alpha; eukaryotic translation initiation factor 2, subunit 1 alpha, 35kDa
Gene Aliases: EIF-2; EIF-2A; EIF-2alpha; EIF2; EIF2A; EIF2S1
UniProt ID: (Human) P05198, (Rat) P68101
Entrez Gene ID: (Dog) 480361, (Human) 1965, (Rat) 54318
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