rs34550074

What is the rs34550074 variant?

rs34550074 is a SNP (single nucleotide polymorphism) in the EPX (Eosinophil Peroxidase) gene. It belongs to the Immune Signaling category and is part of the Histamine & MCAS biological cluster. EPX encodes eosinophil peroxidase, which generates reactive oxygen species in eosinophil granules for antimicrobial defense.

Biological role and pathway

This variant sits within the EPX gene, which is involved in the eosinophil antimicrobial defense / oxidative pathway. Genes within the Histamine & MCAS 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 — particularly under conditions of physiological stress such as viral infection or prolonged illness.

Parent gene: EPX

rs34550074 is one of 1 known variant in the EPX gene. To understand the full biological context of this variant, explore the parent gene page.

Conditions studied in relation to rs34550074

Research into EPX variants including rs34550074 has explored associations with the following conditions. These are areas of scientific investigation and do not imply causation.

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 EPX and the rs34550074 variant.

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.

Frequently asked questions