rs1800682

Variant in the FAS gene (Fas Cell Surface Death Receptor (CD95/APO-1))

rs1800682 is a single nucleotide polymorphism (SNP) in the FAS gene, involved in death receptor / apoptosis. 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 rs1800682 variant?

rs1800682 is a SNP (single nucleotide polymorphism) in the FAS (Fas Cell Surface Death Receptor (CD95/APO-1)) gene. It belongs to the Immune Signaling category and is part of the Immune System & Inflammation biological cluster. FAS encodes CD95/APO-1, a death receptor for Fas ligand that mediates apoptosis in lymphocytes and other cell types.

Biological role and pathway

This variant sits within the FAS gene, which is involved in the death receptor / apoptosis pathway. Genes within the Immune System & Inflammation 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.

rs1800682 and Long COVID / ME-CFS research

Fas-mediated apoptosis is essential for immune cell homeostasis; variants may affect lymphocyte survival and the resolution of immune responses in Long COVID.

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

Parent gene: FAS

rs1800682 is one of 2 known variants in the FAS gene. To understand the full biological context of this variant, explore the parent gene page.

View FAS gene page →

Conditions studied in relation to rs1800682

Research into FAS variants including rs1800682 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 FAS and the rs1800682 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.

Other variants in the FAS gene

The following variants in FAS are also studied in relation to chronic illness and may be analysed together for a more complete picture.

Frequently asked questions

What is the rs1800682 variant in the FAS gene?

rs1800682 is a single nucleotide polymorphism (SNP) located in the FAS (Fas Cell Surface Death Receptor (CD95/APO-1)) gene, which is involved in death receptor / apoptosis. FAS encodes CD95/APO-1, a death receptor for Fas ligand that mediates apoptosis in lymphocytes and other cell types.

How may the rs1800682 variant relate to Long COVID or ME/CFS?

Fas-mediated apoptosis is essential for immune cell homeostasis; variants may affect lymphocyte survival and the resolution of immune responses in Long COVID.

Can a consumer DNA test detect the rs1800682 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 rs1800682 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 FAS and its variants. This is not an exhaustive literature review.

  • [1]PMID: 32296168
  • [2]Nature Immunology
  • [3]NEJM