Genetic variant

rs1042522 a variant in the TP53 gene

rs1042522 is a single-letter difference in the TP53 gene, on chromosome 17. 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 Li-Fraumeni syndrome and Hereditary cancer-predisposing syndrome. 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 rs1042522 is the catalogue number of one of them, in the TP53 gene. Which letters you carry there — one copy from each parent — is your genotype.

TP53 (tumor protein p53): This gene encodes a tumor suppressor protein containing transcriptional activation, DNA binding, and oligomerization domains. The encoded protein responds to diverse cellular stresses to regulate expression of target genes, thereby inducing cell cycle arrest, apoptosis, senescence, DNA repair, or changes in metabolism.

Gene description from NCBI Gene

This SNP, a variant in the TP53 gene, is 1 of 25 SNPs reported to represent independently minor, but...

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 rs1042522, 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
rs1042522
Gene
TP53
Position (GRCh38)
chr17:7676153
Variant type
snv
Consequence
missense variant
ClinVar classification
Conflicting classifications of pathogenicity

Genome-wide association studies (11)

TraitRisk alleleOR / betaP-valueStudy
Sex hormone-binding globulin levels C OR 0.19 3E-938 PubMed
Testosterone levels C β 0.066 1E-117 PubMed
Glycated hemoglobin levels C β 0.024 3E-18 PubMed
TP53 protein levels C β 0.058 6E-16 PubMed
Serum total protein levels C β 0.019 3E-11 PubMed
Apolipoprotein B levels C β 0.018 9E-11 PubMed
Low density lipoprotein cholesterol levels C β 0.018 1E-10 PubMed
Non-albumin protein levels C β 0.018 4E-10 PubMed
Triglyceride levels C β 0.017 4E-10 PubMed
SHBG protein levels — OR 0.21 7E-9 PubMed
Body surface area — β 0.003 1E-8 PubMed

How common the less frequent letter is

gnomAD ALL
0%
1kG AFR
66.9%
1kG ALL
45.7%
1kG AMR
31.7%
1kG EAS
41.4%
1kG EUR
28.5%
1kG SAS
50.8%

Sources