Submissions for variant NM_000546.6(TP53):c.1152G>A (p.Met384Ile)

dbSNP: rs1597345344

Total submissions: 3

Submitter	RCV	SCV	Clinical significance	Condition	Last evaluated	Review status	Method	Comment
Labcorp Genetics (formerly Invitae), Labcorp	RCV000792615	SCV000931921	uncertain significance	Li-Fraumeni syndrome	2022-09-12	criteria provided, single submitter	clinical testing	This sequence change replaces methionine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 384 of the TP53 protein (p.Met384Ile). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with TP53-related conditions. ClinVar contains an entry for this variant (Variation ID: 639734). 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 not expected to disrupt TP53 protein function. Experimental studies have shown that this missense change does not substantially affect TP53 function (PMID: 12826609). 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.
Ambry Genetics	RCV002343647	SCV002621781	likely benign	Hereditary cancer-predisposing syndrome	2020-09-29	criteria provided, single submitter	clinical testing	This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
All of Us Research Program, National Institutes of Health	RCV000792615	SCV004829734	uncertain significance	Li-Fraumeni syndrome	2023-08-08	criteria provided, single submitter	clinical testing	This missense variant replaces methionine with isoleucine at codon 384 of the TP53 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). Functional studies have shown that this variant is functional in yeast transcriptional activation assays and human cell growth suppression assays (PMID: 12826609, 30224644). To our knowledge, this variant has not been reported in individuals affected with TP53-related disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.