Genetic variant

rs2075291 a variant in the APOA5 gene

rs2075291 is a single-letter difference in the APOA5 gene, on chromosome 11. ClinVar, the public archive of variant interpretations, lists it as conflicting interpretations: laboratories that have assessed it do not agree on whether it matters. It has been reported in connection with Hypertriglyceridemia 1 and Cardiovascular phenotype. 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 rs2075291 is the catalogue number of one of them, in the APOA5 gene. Which letters you carry there — one copy from each parent — is your genotype.

APOA5 (apolipoprotein A5): The protein encoded by this gene is an apolipoprotein that plays an important role in regulating the plasma triglyceride levels, a major risk factor for coronary artery disease. It is a component of high density lipoprotein and is highly similar to a rat protein that is upregulated in response to liver injury. Mutations in this gene have been associated with hypertriglyceridemia and hyperlipoproteinemia type 5.

Gene description from NCBI Gene

SNP rs2075291 represents a glycine to cysteine substitution at amino acid 185 of the APOA5 protein

From SNPedia

Why might it matter?

ClinVar records this variant as conflicting interpretations, meaning laboratories that have assessed it do not agree on whether it matters. 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

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 rs2075291, 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?

  1. Find out whether you carry it. Reading about a variant says nothing about you until you know your genotype.
  2. Put it in context. Add your blood results, so the variant can be read against what your body is doing.
  3. Ask questions. Dr. Hemsworth, our AI assistant, can explain this variant and your results in plain English.
  4. 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
rs2075291
Gene
APOA5
Position
chr11:116790676
ClinVar classification
Conflicting classifications of pathogenicity

Genome-wide association studies (20)

TraitRisk alleleOR / betaP-valueStudy
Hypo-HDL-cholesterolemia C OR 1.8 4E-164 PubMed
Hypo-HDL-cholesterolemia C OR 1.8 3E-104 PubMed
Hypo-HDL-cholesterolemia C OR 1.8 3E-62 PubMed
Low high density lipoprotein cholesterol levels — — 1E-53 PubMed
Low high density lipoprotein cholesterol levels — — 2E-51 PubMed
Hypo-HDL-cholesterolemia C OR 1.8 2E-44 PubMed
Hypo-HDL-cholesterolemia C OR 1.8 2E-37 PubMed
Triglyceride levels A OR 0.19 5E-36 PubMed
Hypo-HDL-cholesterolemia C OR 1.8 2E-30 PubMed
HDL cholesterol levels A OR 0.3 1E-29 PubMed
High density lipoprotein cholesterol levels A β 0.075 2E-28 PubMed
Hypo-HDL-cholesterolemia C OR 2.1 9E-28 PubMed
Hypo-HDL-cholesterolemia C OR 1.8 7E-25 PubMed
Triglycerides C OR 0.33 7E-24 PubMed
High density lipoprotein cholesterol levels C OR 0.26 6E-20 PubMed
Low-density lipoprotein levels A β 0.056 2E-16 PubMed
Total triglycerides levels — OR 0.38 8E-16 PubMed
Triglyceride levels — OR 0.19 8E-16 PubMed
HDL cholesterol levels A OR 0.32 9E-15 PubMed
Platelet count A β 0.047 3E-13 PubMed

Sources