Genetic variant
rs2072493 a variant in the TLR5 gene
rs2072493 is a single-letter difference in the TLR5 gene, on chromosome 1. ClinVar, the public archive of variant interpretations, lists it as benign: not known to cause disease. It has been reported in connection with Legionnaire disease, susceptibility to and TLR5-related disorder. Carrying it does not, on its own, mean you have or will develop any condition.
What is this?
Your DNA is a long sequence of four letters. At a few million positions, people commonly differ by a single letter; each of those positions is called a SNP (“snip”), and rs2072493 is the catalogue number of one of them, in the TLR5 gene. Which letters you carry there — one copy from each parent — is your genotype.
TLR5 (toll like receptor 5): This gene encodes a member of the toll-like receptor (TLR) family, which plays a fundamental role in pathogen recognition and activation of innate immune responses. These receptors recognize distinct pathogen-associated molecular patterns that are expressed on infectious agents. The protein encoded by this gene recognizes bacterial flagellin, the principal component of bacterial flagella and a virulence factor.
Gene description from NCBI Gene
Genetic variation and haplotype structures of innate immunity genes in eastern India. Toll-like rece...
From SNPedia
Why might it matter?
ClinVar records this variant as benign, meaning not known to cause disease. A classification describes the variant, not you: what it means for one person depends on their genotype, their family history and often on other genes and circumstances.
Conditions it has been reported with
- Legionnaire disease, susceptibility to
- TLR5-related disorder
Listed in ClinVar submissions for this variant. Being listed is a report of an association, not a statement that the variant causes the condition in any given person.
Do I have this variant?
If you have taken a consumer DNA test (23andMe, AncestryDNA and similar), you can download its raw data file and check. Create a free account, upload the file, and this page will show the letters you carry at rs2072493, if your test read this position.
Connect this with your blood results
A gene is a fixed instruction; a blood test shows what your body is doing now. CheckMyBloods reads the two side by side, so a variant can be set against the markers it could plausibly affect.
Blood markers do not diagnose a genetic condition, and a variant does not explain a blood result on its own. Together, with symptoms and family history, they give a clinician context.
What should I do next?
- Find out whether you carry it. Reading about a variant says nothing about you until you know your genotype.
- Put it in context. Add your blood results, so the variant can be read against what your body is doing.
- Ask questions. Dr. Hemsworth, our AI assistant, can explain this variant and your results in plain English.
- Take anything that worries you to a professional. A GP or genetic counsellor can order a confirmatory test and interpret it with your history.
This page is general information drawn from public research databases. It cannot diagnose anything, and it is not a substitute for advice from a doctor or genetic counsellor who knows your history.
Technical details
- dbSNP ID
- rs2072493
- Gene
- TLR5
- Position (GRCh38)
- chr1:223111256
- Variant type
- snv
- Consequence
- missense variant
- ClinVar classification
- Benign; risk factor
How common the less frequent letter is
- gnomAD ALL
- 15.4%
- 1kG AFR
- 99.5%
- 1kG ALL
- 14%
- 1kG AMR
- 79.1%
- 1kG EAS
- 72.7%
- 1kG EUR
- 16.2%
- 1kG SAS
- 11.6%
Sources
- dbSNP: rs2072493 — the reference record
- ClinVar — clinical interpretations submitted by laboratories
- SNPedia — community-written summaries
- NCBI Gene: TLR5
- Ensembl: TLR5