EGFR Gene

What is the EGFR gene?

EGFR encodes epidermal growth factor receptor, a protein involved in EGF receptor / ERK and PI3K signaling. It belongs to the Signaling category and is part of the Respiratory & Lung Function biological cluster. EGFR encodes the EGF receptor, a receptor tyrosine kinase that mediates epithelial cell proliferation, survival, and repair.

Biological role and pathway

EGFR is involved in the EGF receptor / ERK and PI3K signaling pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Respiratory & Lung Function 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.

Known genetic variants

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

• rs2227983— EGFR variant
• rs17337023— EGFR variant

Conditions studied in relation to EGFR

Research into EGFR variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that EGFR 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 EGFR and related genes in the respiratory & lung function 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 Respiratory & Lung Function pathway

EGFR 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