Genetic variant
rs174556
rs174556 is a single-letter difference in human DNA, on chromosome 11. 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 rs174556 is the catalogue number of one of them. Which letters you carry there — one copy from each parent — is your genotype.
We hold only the basic reference record for this variant: its ID and position. Many catalogued variants have never been linked to anything.
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 rs174556, 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
- rs174556
- Position
- chr11:61813163
Genome-wide association studies (20)
| Trait | Risk allele | OR / beta | P-value | Study |
|---|---|---|---|---|
| Phosphatidylcholine (18:1_20:3) levels | T | OR 0.51 | 1E-108 | PubMed |
| Alkylphosphatidylcholine (O-16:0/20:3) levels | T | OR 0.48 | 2E-97 | PubMed |
| Phosphatidylcholine (16:0_20:3) (a) levels | T | OR 0.42 | 2E-73 | PubMed |
| Alkylphosphatidylcholine (O-16:0/20:3) levels | T | OR 0.41 | 1E-68 | PubMed |
| Phosphatidylcholine (18:1_20:3) levels | T | OR 0.4 | 4E-66 | PubMed |
| Phosphatidylethanolamine (18:0_18:2) levels | T | OR 0.37 | 2E-61 | PubMed |
| Cholesteryl ester (20:2) levels | T | OR 0.38 | 3E-60 | PubMed |
| red cell diameter width (RDW, minimum, inv-norm transformed) | C | β 0.053 | 2E-56 | PubMed |
| Phosphatidylcholine (16:0_20:3) (a) levels | T | OR 0.31 | 2E-39 | PubMed |
| mean corpuscular hemoglobin concentration (MCHC, mean, inv-norm transformed) | C | β 0.036 | 2E-37 | PubMed |
| Phosphatidylethanolamine (O-18:2_20:4) levels | T | OR 0.18 | 4E-26 | PubMed |
| low density lipoprotein cholesterol (LDLC, mean, inv-norm transformed) | C | β 0.027 | 1E-23 | PubMed |
| Eicosapentaenoate EPA; 20:5n3 levels | T | β 0.036 | 2E-22 | PubMed |
| Serum metabolite levels | C | OR 0.24 | 6E-22 | PubMed |
| Cholesteryl ester (20:2) levels | T | OR 0.23 | 6E-22 | PubMed |
| low density lipoprotein cholesterol (LDLC, maximum, inv-norm transformed) | C | β 0.028 | 7E-22 | PubMed |
| low density lipoprotein cholesterol (LDLC, mean, inv-norm transformed) | C | β 0.028 | 5E-21 | PubMed |
| 1-stearyl-GPC (O-18:0) levels | T | OR 0.1 | 2E-20 | PubMed |
| 1-stearoyl-2-arachidonoyl-gpc (18:0/20:4) levels (elderly offspring) | — | OR 0.11 | 4E-20 | PubMed |
| Phosphatidylcholine (14:0_18:2) levels | T | OR 0.21 | 8E-20 | PubMed |
Sources
- dbSNP: rs174556 — the reference record
- ClinVar — clinical interpretations submitted by laboratories
- SNPedia — community-written summaries
- GWAS Catalog — association studies