Genetic variant

rs2070634 a variant in the AHSG gene

rs2070634 is a single-letter difference in the AHSG gene, on chromosome 3. ClinVar, the public archive of variant interpretations, lists it as association: seen more often in people with a condition, which is not the same as causing it. It has been reported in connection with Nephrolithiasis, calcium oxalate. 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 rs2070634 is the catalogue number of one of them, in the AHSG gene. Which letters you carry there — one copy from each parent — is your genotype.

AHSG (alpha 2-HS glycoprotein): The protein encoded by this gene is a negatively-charged serum glycoprotein that is synthesized by hepatocytes. The encoded protein consists of two polypeptide chains, which are both cleaved from a proprotein encoded from a single mRNA. It is involved in several processes, including endocytosis, brain development, and the formation of bone tissue. Defects in this gene are a cause of susceptibility to leanness.

Gene description from NCBI Gene

Why might it matter?

ClinVar records this variant as association, meaning seen more often in people with a condition, which is not the same as causing it. 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 rs2070634, 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
rs2070634
Gene
AHSG
Position
chr3:186618238
ClinVar classification
association

Genome-wide association studies (8)

TraitRisk alleleOR / betaP-valueStudy
Monounsaturated fatty acids to total fatty acids percentage G β 0.02 6E-23 PubMed
Glycoprotein acetyls levels T β 0.037 1E-19 PubMed
EFEMP1 protein levels G β 0.045 1E-19 PubMed
Glycoprotein acetyls levels (UKB data field 23480) T β 0.039 1E-16 PubMed
Polyunsaturated fatty acids to monounsaturated fatty acids ratio G β 0.01 5E-14 PubMed
Monounsaturated fatty acids to total fatty acids percentage T — 5E-11 PubMed
Alpha-2-HS-glycoprotein (analyte X3581.53) levels T OR 0.14 1E-9 PubMed
Monounsaturated fatty acids to total fatty acids percentage T — 7E-9 PubMed

Sources