ClinVar Miner

Submissions for variant NM_000546.6(TP53):c.518T>A (p.Val173Glu)

dbSNP: rs1057519747
Minimum review status: Collection method:
Minimum conflict level:
ClinVar version:
Total submissions: 4
Download table as spreadsheet
Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000574130 SCV000667212 pathogenic Hereditary cancer-predisposing syndrome 2023-04-28 criteria provided, single submitter clinical testing The p.V173E pathogenic mutation (also known as c.518T>A), located in coding exon 4 of the TP53 gene, results from a T to A substitution at nucleotide position 518. The valine at codon 173 is replaced by glutamic acid, an amino acid with dissimilar properties. This variant is in the DNA binding domain of the TP53 protein and is reported to have non-functional transactivation in yeast based assays (Kato S et al. Proc. Natl. Acad. Sci. USA. 2003 Jul;100:8424-9). Studies conducted in human cell lines indicate this alteration is deficient at growth suppression and has a dominant negative effect (Kotler E et al. Mol.Cell. 2018 Jul;71:178-190.e8; Giacomelli AO et al. Nat. Genet. 2018 Oct;50:1381-1387). This variant has been detected in at least one individual at an allele fraction that is suggestive of clonal hematopoiesis, a predictor of TP53 pathogenicity (Ambry internal data; Fortuno C et al. Genet Med. 2022 03;24:673-680). Another alteration at the same codon,p.V173M (c.517G>A), has been reported in a family meeting clinical criteria for Li-Fraumeni Syndrome (Achatz M et al. Cancer Lett. 2007 Jan; 245(1-2):96-102). The p.V173E variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the supporting evidence, this alteration is interpreted as a disease-causing mutation.
Labcorp Genetics (formerly Invitae), Labcorp RCV002524700 SCV003226390 uncertain significance Li-Fraumeni syndrome 2022-07-31 criteria provided, single submitter clinical testing In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies have shown that this missense change affects TP53 function (PMID: 12826609, 29979965, 30224644). Advanced modeling of experimental studies (such as gene expression, population dynamics, functional pathways, and cell-cycle effects in cell culture) performed at Invitae indicates that this missense variant is expected to disrupt TP53 protein function. ClinVar contains an entry for this variant (Variation ID: 376669). This variant has not been reported in the literature in individuals affected with TP53-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces valine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 173 of the TP53 protein (p.Val173Glu).
Myriad Genetics, Inc. RCV004022245 SCV004931809 likely pathogenic Li-Fraumeni syndrome 1 2024-02-14 criteria provided, single submitter clinical testing This variant is considered likely pathogenic. Functional studies indicate this variant impacts protein function [PMID: 29979965]. This variant is expected to disrupt protein structure [Myriad internal data].
Mayo Clinic Laboratories, Mayo Clinic RCV000582350 SCV000692084 uncertain significance not specified no assertion criteria provided clinical testing

The information on this website is not intended for direct diagnostic use or medical decision-making without review by a genetics professional. Individuals should not change their health behavior solely on the basis of information contained on this website. Neither the University of Utah nor the National Institutes of Health independently verfies the submitted information. If you have questions about the information contained on this website, please see a health care professional.