Protein kinase R
Human protein and coding gene / From Wikipedia, the free encyclopedia
Protein kinase RNA-activated also known as protein kinase R (PKR), interferon-induced, double-stranded RNA-activated protein kinase, or eukaryotic translation initiation factor 2-alpha kinase 2 (EIF2AK2) is an enzyme that in humans is encoded by the EIF2AK2 gene on chromosome 2.[5][6] PKR is a serine/tyrosine kinase that is 551 amino acids long.[7]
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PKR is inducible by various mechanisms of stress and protects against viral infections.[8] It also has a role in several signaling pathways.[9][10]