rs2194462
Variant in the FASN gene (Fatty Acid Synthase)
rs2194462 is a single nucleotide polymorphism (SNP) in the FASN gene, involved in de novo fatty acid synthesis. 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 rs2194462 variant?
rs2194462 is a SNP (single nucleotide polymorphism) in the FASN (Fatty Acid Synthase) gene. It belongs to the Lipid Metabolism category and is part of the Lipid Metabolism biological cluster. FASN encodes fatty acid synthase, the multifunctional enzyme catalyzing de novo synthesis of palmitate from acetyl-CoA.
Biological role and pathway
This variant sits within the FASN gene, which is involved in the de novo fatty acid synthesis pathway. Genes within the Lipid Metabolism 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.
rs2194462 and Long COVID / ME-CFS research
FASN-mediated lipogenesis is reprogrammed during viral infection; altered fatty acid synthesis may contribute to immune cell dysfunction in Long COVID.
This information is based on published research and does not constitute medical advice. See references below.
Parent gene: FASN
rs2194462 is one of 1 known variant in the FASN gene. To understand the full biological context of this variant, explore the parent gene page.
View FASN gene page →Conditions studied in relation to rs2194462
Research into FASN variants including rs2194462 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 FASN and the rs2194462 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 rs2194462 variant in the FASN gene?
rs2194462 is a single nucleotide polymorphism (SNP) located in the FASN (Fatty Acid Synthase) gene, which is involved in de novo fatty acid synthesis. FASN encodes fatty acid synthase, the multifunctional enzyme catalyzing de novo synthesis of palmitate from acetyl-CoA.
How may the rs2194462 variant relate to Long COVID or ME/CFS?
FASN-mediated lipogenesis is reprogrammed during viral infection; altered fatty acid synthesis may contribute to immune cell dysfunction in Long COVID.
Can a consumer DNA test detect the rs2194462 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 rs2194462 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 FASN and its variants. This is not an exhaustive literature review.
- [1]PMID: 34316049
- [2]Nature Genetics
- [3]Journal of Clinical Investigation