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Bethyl Laboratories
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Acts as a positive activator of the EIF2AK4/GCN2 protein kinase activity in response to amino acid starvation. Forms a complex with EIF2AK4/GCN2 on translating ribosomes; during this process, GCN1 seems to act as a chaperone to facilitate delivery of uncharged tRNAs that enter the A site of ribosomes to the tRNA-binding domain of EIF2AK4/GCN2, and hence stimulating EIF2AK4/GCN2 kinase activity. Participates in the repression of global protein synthesis and in gene-specific mRNA translation activation, such as the transcriptional activator ATF4, by promoting the EIF2AK4/GCN2-mediated phosphorylation of eukaryotic translation initiation factor 2 (eIF-2-alpha/EIF2S1) on 'Ser-52', and hence allowing ATF4-mediated reprogramming of amino acid biosynthetic gene expression to alleviate nutrient depletion. [UniProt]
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: GCN1 (general control of amino-acid synthesis 1, yeast)-like 1; GCN1 eIF-2-alpha kinase activator homolog; GCN1 eIF2 alpha kinase activator homolog; GCN1 general control of amino-acid synthesis 1-like 1; GCN1-like protein 1; General control of amino-acid synthesis 1-like protein 1; HsGCN1; peroxisome proliferator activated receptor interacting complex protein; Stalled ribosome sensor GCN1; Translational activator GCN1
基因别名: 4932409G22; AL022764; G431004K08Rik; GCN1; GCN1L; GCN1L1; KIAA0219; mKIAA0219; PRIC295
UniProt ID: (Human) A8KAY1, (Mouse) E9PVA8
Entrez Gene ID: (Human) 10985, (Mouse) 231659, (Rat) 690632