ClinVar Miner

Submissions for variant NM_000546.6(TP53):c.584T>G (p.Ile195Ser)

dbSNP: rs760043106
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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Color Diagnostics, LLC DBA Color Health RCV001184465 SCV001350433 uncertain significance Hereditary cancer-predisposing syndrome 2019-09-03 criteria provided, single submitter clinical testing This missense variant replaces isoleucine with serine at codon 195 of the TP53 protein. Computational prediction tools and conservation analyses are inconclusive regarding the impact of this variant on protein structure and function. A different variant affecting the same codon, c.584T>C (p.Ile195Thr), is considered to be disease-causing (ClinVar variation ID: 216077), suggesting that isoleucine or similar amino acid at this position is important for the protein function. Splice site prediction tools suggest that this variant may not impact RNA splicing. Functional studies have shown that this variant to be non-functional in yeast transcription activation assays and in a cell proliferation assay in p53-null mammalian cells (PMID: 12826609, 23897043, 29979965). To our knowledge, this variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). Although there is a suspicion that this variant may be associated with disease, clinical evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.
Myriad Genetics, Inc. RCV004022221 SCV004931476 likely pathogenic Li-Fraumeni syndrome 1 2024-02-15 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].

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