Genetic variant
rs6658835
rs6658835 is a single-letter difference in human DNA, on chromosome 1. 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 rs6658835 is the catalogue number of one of them. Which letters you carry there — one copy from each parent — is your genotype.
Genetic variance of transforming growth factor 2 gene in conotruncal heart defects.
From SNPedia
Why might it matter?
ClinVar holds no clinical classification for this variant. That is the usual case: most catalogued variants have no known effect on health.
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 rs6658835, 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
- rs6658835
- Position
- chr1:218347653
Genome-wide association studies (7)
| Trait | Risk allele | OR / beta | P-value | Study |
|---|---|---|---|---|
| Lung function (FEV1/FVC) | A | OR 11.31 | 1E-29 | PubMed |
| Appendicular lean mass | A | β 0.018 | 9E-20 | PubMed |
| Physical function (baseline) | A | β 0.01 | 1E-17 | PubMed |
| Lung function (FVC) | — | — | 2E-17 | PubMed |
| Vertical cup-disc ratio | A | β 0.006 | 8E-16 | PubMed |
| Vertical cup-disc ratio | A | β 0.045 | 5E-15 | PubMed |
| Aortic aneurysm | G | OR 0.14 | 1E-8 | PubMed |
Sources
- dbSNP: rs6658835 — the reference record
- ClinVar — clinical interpretations submitted by laboratories
- SNPedia — community-written summaries
- GWAS Catalog — association studies