rs142530685
Variant in the POLG2 gene (DNA Polymerase Gamma 2, Accessory Subunit)
rs142530685 is a single nucleotide polymorphism (SNP) in the POLG2 gene, involved in mitochondrial DNA replication. Variants at this position have been studied in relation to immune function, metabolism, and chronic illness.
This page is for educational and informational purposes only. Not a diagnostic tool. Always consult a qualified healthcare provider.
What is the rs142530685 variant?
rs142530685 is a SNP (single nucleotide polymorphism) in the POLG2 (DNA Polymerase Gamma 2, Accessory Subunit) gene. It belongs to the Mitochondrial category and is part of the Mitochondrial Energy Production & PEM biological cluster. POLG2 encodes the accessory subunit of mitochondrial DNA polymerase gamma, increasing its processivity during mtDNA replication.
Biological role and pathway
This variant sits within the POLG2 gene, which is involved in the mitochondrial DNA replication pathway. Genes within the Mitochondrial Energy Production & PEM 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.
rs142530685 and Long COVID / ME-CFS research
POLG2 variants affecting mitochondrial DNA replication fidelity may worsen mitochondrial genome integrity under Long COVID oxidative stress.
This information is based on published research and does not constitute medical advice. See references below.
Parent gene: POLG2
rs142530685 is one of 1 known variant in the POLG2 gene. To understand the full biological context of this variant, explore the parent gene page.
View POLG2 gene page →Conditions studied in relation to rs142530685
Research into POLG2 variants including rs142530685 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 POLG2 and the rs142530685 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
What is the rs142530685 variant in the POLG2 gene?
rs142530685 is a single nucleotide polymorphism (SNP) located in the POLG2 (DNA Polymerase Gamma 2, Accessory Subunit) gene, which is involved in mitochondrial DNA replication. POLG2 encodes the accessory subunit of mitochondrial DNA polymerase gamma, increasing its processivity during mtDNA replication.
How may the rs142530685 variant relate to Long COVID or ME/CFS?
POLG2 variants affecting mitochondrial DNA replication fidelity may worsen mitochondrial genome integrity under Long COVID oxidative stress.
Can a consumer DNA test detect the rs142530685 variant?
Many consumer DNA tests such as 23andMe, AncestryDNA, and MyHeritage genotype common SNPs. ChronicDNA analyses your raw DNA file and reports on variants studied in relation to chronic illness, immune function, and metabolism. This is not a diagnostic service — results are informational and educational only.
Find out if you carry the rs142530685 variant
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 ReportInformational and educational only · Not a diagnostic tool · GDPR compliant
References
The following publications were used in compiling the research context for POLG2 and its variants. This is not an exhaustive literature review.
- [1]PMID: 32735956
- [2]Nature Genetics
- [3]Journal of Clinical Investigation