rs1889816

Variant in the ACO2 gene (Aconitase 2 (Mitochondrial))

rs1889816 is a single nucleotide polymorphism (SNP) in the ACO2 gene, involved in TCA cycle. 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 rs1889816 variant?

rs1889816 is a SNP (single nucleotide polymorphism) in the ACO2 (Aconitase 2 (Mitochondrial)) gene. It belongs to the Metabolic category and is part of the Mitochondrial Energy Production & PEM biological cluster. ACO2 encodes mitochondrial aconitase, which catalyzes the conversion of citrate to isocitrate in the TCA cycle.

Biological role and pathway

This variant sits within the ACO2 gene, which is involved in the TCA cycle 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.

rs1889816 and Long COVID / ME-CFS research

Mitochondrial aconitase is sensitive to oxidative stress from superoxide; variants may affect TCA cycle flux and contribute to mitochondrial dysfunction in Long COVID.

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

Parent gene: ACO2

rs1889816 is one of 1 known variant in the ACO2 gene. To understand the full biological context of this variant, explore the parent gene page.

View ACO2 gene page →

Conditions studied in relation to rs1889816

Research into ACO2 variants including rs1889816 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 ACO2 and the rs1889816 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 rs1889816 variant in the ACO2 gene?

rs1889816 is a single nucleotide polymorphism (SNP) located in the ACO2 (Aconitase 2 (Mitochondrial)) gene, which is involved in TCA cycle. ACO2 encodes mitochondrial aconitase, which catalyzes the conversion of citrate to isocitrate in the TCA cycle.

How may the rs1889816 variant relate to Long COVID or ME/CFS?

Mitochondrial aconitase is sensitive to oxidative stress from superoxide; variants may affect TCA cycle flux and contribute to mitochondrial dysfunction in Long COVID.

Can a consumer DNA test detect the rs1889816 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 rs1889816 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 Report

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

References

The following publications were used in compiling the research context for ACO2 and its variants. This is not an exhaustive literature review.

  • [1]PMID: 34316049
  • [2]Nature Genetics
  • [3]Cell Metabolism