TMPRSS2 Gene
Transmembrane Serine Protease 2 (TMPRSS2) is a gene involved in viral entry proteolysis that has been studied in relation to immune function, metabolism, and chronic illness. Variants in TMPRSS2 may influence how the body responds to infection, inflammation, and long-term recovery.
This page is for educational and informational purposes only. Not a diagnostic tool. Always consult a qualified healthcare provider.
What is the TMPRSS2 gene?
TMPRSS2 encodes transmembrane serine protease 2, a protein involved in viral entry proteolysis. It belongs to the Viral Entry category and is part of the Viral Entry & Receptors biological cluster. TMPRSS2 encodes a serine protease that primes SARS-CoV-2 spike protein, facilitating viral entry into host cells.
Biological role and pathway
TMPRSS2 is involved in the viral entry proteolysis pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Viral Entry & Receptors 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 in these systems — particularly under conditions of physiological stress such as viral infection or prolonged illness.
TMPRSS2 and Long COVID / ME-CFS research
TMPRSS2 variants affecting viral entry efficiency may influence the initial viral load and subsequent immune dysregulation in Long COVID.
This information is based on published research and does not constitute medical advice. See references below.
Known genetic variants
The following variants (SNPs) in the TMPRSS2 gene have been studied in relation to viral entry and chronic illness. Each variant represents a single nucleotide position where individuals may carry different alleles.
- rs12329760— TMPRSS2 variant
- rs2070788— TMPRSS2 variant
Conditions studied in relation to TMPRSS2
Research into TMPRSS2 variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that TMPRSS2 causes or treats any condition.
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 TMPRSS2 and related genes in the viral entry & receptors pathway.
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.
Related genes in the Viral Entry & Receptors pathway
TMPRSS2 does not act in isolation. The following genes are functionally related and may be analysed together for a more complete picture of your genetic predispositions.
Frequently asked questions
What is the TMPRSS2 gene and what does it do?
TMPRSS2 (Transmembrane Serine Protease 2) is involved in viral entry proteolysis. TMPRSS2 encodes a serine protease that primes SARS-CoV-2 spike protein, facilitating viral entry into host cells.
How may TMPRSS2 gene variants relate to Long COVID or ME/CFS?
TMPRSS2 variants affecting viral entry efficiency may influence the initial viral load and subsequent immune dysregulation in Long COVID.
Can a DNA test reveal information about my TMPRSS2 gene?
Consumer DNA data from 23andMe, AncestryDNA, and MyHeritage includes SNP variants for many genes. ChronicDNA analyses your raw DNA file and reports on variants that have been studied in relation to chronic illness, immune function, and metabolism. This is not a diagnostic service — results are informational and educational only.
Related articles
- Long COVID Genetic Testing: What Your DNA Can Show
Can long COVID genetic testing help? Learn what consumer DNA tests can and cannot reveal, and how raw data links to viral entry and interferon genes.
- Long COVID Genetics: What Host DNA Research Suggests
A plain-English guide to long COVID genetics: how genes for viral entry, interferon signaling and immune clearance may shape risk and recovery.
- Why Does Long COVID Happen? Causes and Genetics
Why does Long COVID happen? Explore leading theories, from viral persistence to microclots, and how genes like ACE2 and IFNL3 may play a role.
Explore your TMPRSS2 genetic insights
Upload your DNA data from 23andMe, AncestryDNA, or MyHeritage and receive a personalised report covering >80 genes relevant to Long COVID and ME/CFS.
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References
The following publications were used in compiling the research context for TMPRSS2. This is not an exhaustive literature review.
- [1]PMID: 32142651
- [2]Nature Genetics
- [3]Journal of Clinical Investigation