rs28934875
A SNP in the TP53 gene on chromosome 17. Its most notable genotype is C;G: Li-Fraumeni Syndrome (predicted)
- Gene
- TP53
- Location
- Chr 177,675,200 (GRCh38)
- Highest magnitude
- 7.0Very important
- Tested on
- 23andMe, AncestryDNA
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
- G;GNot ratedNo summary available.
- C;GMost notableBadLi-Fraumeni Syndrome (predicted)
- C;CGoodcommon in clinvar
SNPedia records rs28934875 on the minus strand: (C;C), (C;G), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Related
Conditions, medicines and genes
Other TP53 SNPs
- rs28934578T;Tinfo@snpedia.com would like to hear from youVery important
- rs11540652C;TLi-Fraumeni Syndrome (predicted)Very important
- rs11575997C;TLi-Fraumeni Syndrome (predicted)Very important
- rs28934573C;GLi-Fraumeni Syndrome (predicted)Very important
- rs28934574C;GLi-Fraumeni Syndrome (predicted)Very important
- rs28934575C;TLi-Fraumeni Syndrome (predicted)Very important
- rs28934576C;TLi-Fraumeni Syndrome (predicted)Very important
- rs28934577A;CLi-Fraumeni Syndrome (predicted)Very important
Notes
From SNPedia
Notes
rs28934875, also known as Ala138Pro or A138P, is a SNP in the p53 TP53 tumor suppressor gene. The rare rs28934875(C) allele is associated with predisposition to cancer in the form of Li-Fraumeni syndrome 1. This variant meets the criteria published in 2013 by the ACMG regarding incidental findings in exome or genome sequencing, as a variant that they do recommend informing a patient about.
G;G
appears common on the 23andMe microarray
Source and license
Adapted from rs28934875 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.
SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.