EIF2AK2 Gene

Eukaryotic Translation Initiation Factor 2 Alpha Kinase 2 (PKR) (EIF2AK2) is a gene involved in dsRNA-activated protein kinase / stress response that has been studied in relation to immune function, metabolism, and chronic illness. Variants in EIF2AK2 may influence how the body responds to infection, inflammation, and long-term recovery.

This page is for educational and informational purposes only. Not a diagnostic tool. Always consult a qualified healthcare provider.

What is the EIF2AK2 gene?

EIF2AK2 encodes eukaryotic translation initiation factor 2 alpha kinase 2 (pkr), a protein involved in dsRNA-activated protein kinase / stress response. It belongs to the Antiviral category and is part of the Viral Defense & Interferon Response biological cluster. EIF2AK2 (PKR) is a dsRNA-dependent protein kinase induced by interferons that phosphorylates eIF2α to halt translation during viral infection.

Biological role and pathway

EIF2AK2 is involved in the dsRNA-activated protein kinase / stress response pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Viral Defense & Interferon Response cluster work together to maintain balanced function across interconnected biological systems.

Variants in genes within this pathway may influence an individual's predisposition to altered function in these systems — particularly under conditions of physiological stress such as viral infection or prolonged illness.

EIF2AK2 and Long COVID / ME-CFS research

PKR activation halts translation during viral infection; dysregulation may contribute to chronic stress signaling, fatigue, and cellular dysfunction in Long COVID.

This information is based on published research and does not constitute medical advice. See references below.

Known genetic variants

The following variants (SNPs) in the EIF2AK2 gene have been studied in relation to antiviral and chronic illness. Each variant represents a single nucleotide position where individuals may carry different alleles.

Conditions studied in relation to EIF2AK2

Research into EIF2AK2 variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that EIF2AK2 causes or treats any condition.

Genetic insights from DNA data

Consumer DNA files from 23andMe, AncestryDNA, and MyHeritage contain raw SNP data. When you upload your file to ChronicDNA, the analysis engine checks your genotype against a curated panel of 80+ genes selected for their relevance to Long COVID, ME/CFS, and connected biological pathways - some of which may include EIF2AK2 and related genes in the viral defense & interferon response pathway.

The report is educational - it explains which variants you carry, what the research says about them, and how they fit into the biological pathways most relevant to chronic illness. Results are presented in plain English with appropriate scientific context, no medical jargon, no scare tactics. All results should be discussed with a qualified healthcare provider.

Related genes in the Viral Defense & Interferon Response pathway

EIF2AK2 does not act in isolation. The following genes are functionally related and may be analysed together for a more complete picture of your genetic predispositions.

Frequently asked questions

What is the EIF2AK2 gene and what does it do?

EIF2AK2 (Eukaryotic Translation Initiation Factor 2 Alpha Kinase 2 (PKR)) is involved in dsRNA-activated protein kinase / stress response. EIF2AK2 (PKR) is a dsRNA-dependent protein kinase induced by interferons that phosphorylates eIF2α to halt translation during viral infection.

How may EIF2AK2 gene variants relate to Long COVID or ME/CFS?

PKR activation halts translation during viral infection; dysregulation may contribute to chronic stress signaling, fatigue, and cellular dysfunction in Long COVID.

Can a DNA test reveal information about my EIF2AK2 gene?

Consumer DNA data from 23andMe, AncestryDNA, and MyHeritage includes SNP variants for many genes. ChronicDNA analyses your raw DNA file and reports on variants that have been studied in relation to chronic illness, immune function, and metabolism. This is not a diagnostic service — results are informational and educational only.

Explore your EIF2AK2 genetic insights

Upload your DNA data from 23andMe, AncestryDNA, or MyHeritage and receive a personalised report covering >80 genes relevant to Long COVID and ME/CFS.

Get Your Personalised DNA Report

Informational and educational only · Not a diagnostic tool · GDPR compliant

References

The following publications were used in compiling the research context for EIF2AK2. This is not an exhaustive literature review.

  • [1]PMID: 32217835
  • [2]Nature Immunology
  • [3]Cell