rs11214775

Variant in the SDHA gene (Succinate Dehydrogenase Complex Flavoprotein Subunit A)

rs11214775 is a single nucleotide polymorphism (SNP) in the SDHA gene, involved in TCA cycle and Complex II. 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 rs11214775 variant?

rs11214775 is a SNP (single nucleotide polymorphism) in the SDHA (Succinate Dehydrogenase Complex Flavoprotein Subunit A) gene. It belongs to the Mitochondrial category and is part of the Mitochondrial Energy Production & PEM biological cluster. SDHA encodes the flavoprotein subunit of succinate dehydrogenase (Complex II), linking the TCA cycle to the electron transport chain.

Biological role and pathway

This variant sits within the SDHA gene, which is involved in the TCA cycle and Complex II 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.

rs11214775 and Long COVID / ME-CFS research

Complex II dysfunction may contribute to impaired cellular energy metabolism and fatigue susceptibility in Long COVID post-exertional malaise.

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

Parent gene: SDHA

rs11214775 is one of 1 known variant in the SDHA gene. To understand the full biological context of this variant, explore the parent gene page.

View SDHA gene page →

Conditions studied in relation to rs11214775

Research into SDHA variants including rs11214775 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 SDHA and the rs11214775 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 SDHA gene

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

Frequently asked questions

What is the rs11214775 variant in the SDHA gene?

rs11214775 is a single nucleotide polymorphism (SNP) located in the SDHA (Succinate Dehydrogenase Complex Flavoprotein Subunit A) gene, which is involved in TCA cycle and Complex II. SDHA encodes the flavoprotein subunit of succinate dehydrogenase (Complex II), linking the TCA cycle to the electron transport chain.

How may the rs11214775 variant relate to Long COVID or ME/CFS?

Complex II dysfunction may contribute to impaired cellular energy metabolism and fatigue susceptibility in Long COVID post-exertional malaise.

Can a consumer DNA test detect the rs11214775 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 rs11214775 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 SDHA and its variants. This is not an exhaustive literature review.

  • [1]PMID: 32735956
  • [2]Nature Genetics
  • [3]Journal of Clinical Investigation