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Invitrogen
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Immunogen sequence: ALKEKLGTPD EQLEMANCQA VILSVEDDTG HRIIIEDLLE ATRSPEVGMR QAAAIILNIY CSRSKADYTS HLRSLVSGLI RLFNDSSPVV LEESWDALNA ITKKLDAGNQ LALIEELHKE IRLIGNESKG EHVPGFC
Highest antigen sequence identity to the following orthologs: Mouse - 97%, Rat - 96%.
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。