ClinVar Miner

Submissions for variant NM_000546.6(TP53):c.841G>C (p.Asp281His)

dbSNP: rs764146326
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Total submissions: 6
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Institute for Genomic Medicine (IGM) Clinical Laboratory, Nationwide Children's Hospital RCV006254029 SCV007105599 tier i - strong Rhabdomyosarcoma 2025-04-11 criteria provided, single submitter clinical testing Variant has Tier I (strong) clinical significance as a diagnostic inclusion criterion in rhabdomyosarcoma, based on the following evidence: 1) Documented in one or more cancer databases (e.g., St. Jude Pecan, COSMIC, CIViC, OncoKB). 2) Appears in one or more well-established professional guidelines (e.g., World Health Organization [WHO]; National Comprehensive Cancer Network [NCCN]) as providing diagnostic, prognostic, or therapeutic information. 3) Information in the literature supports potential biologic effect of variant (PMIDs: 12826609, 30224644). 4) Diagnostic for a specific tumor type/classification based on well-powered studies with expert-level consensus (Evidence Level B; PMIDs: 24436047, 34166060, 24332040, 25768946, 26138366).
Institute for Genomic Medicine (IGM) Clinical Laboratory, Nationwide Children's Hospital RCV006254030 SCV007104435 tier i - strong Diffuse midline glioma, H3 K27M-mutant 2022-11-09 criteria provided, single submitter clinical testing Variant has Tier I (strong) clinical significance as a diagnostic inclusion criterion in diffuse midline glioma, H3 K27M-mutant, based on the following evidence: 1) Documented in one or more cancer databases (e.g., St. Jude Pecan, COSMIC, CIViC, OncoKB). 2) Appears in one or more well-established professional guidelines (e.g., World Health Organization [WHO]; National Comprehensive Cancer Network [NCCN]) as providing diagnostic, prognostic, or therapeutic information. 3) Information in the literature supports potential biologic effect of variant (PMIDs: 12826609, 30224644, 29979965). 4) Diagnostic for a specific tumor type/classification based on well-powered studies with expert-level consensus (Evidence Level B; PMIDs: 24705251, 28966033, 22661320, 34796414, 33433639).
Myriad Genetics, Inc. RCV004022210 SCV004932113 likely pathogenic Li-Fraumeni syndrome 1 2024-02-20 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].
Ambry Genetics RCV002446644 SCV002679396 pathogenic Hereditary cancer-predisposing syndrome 2020-12-17 criteria provided, single submitter clinical testing The p.D281H pathogenic mutation (also known as c.841G>C), located in coding exon 7 of the TP53 gene, results from a G to C substitution at nucleotide position 841. The aspartic acid at codon 281 is replaced by histidine, an amino acid with similar 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 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 RCV001306199 SCV001495560 pathogenic Li-Fraumeni syndrome 2024-05-22 criteria provided, single submitter clinical testing This sequence change replaces aspartic acid, which is acidic and polar, with histidine, which is basic and polar, at codon 281 of the TP53 protein (p.Asp281His). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with clinical history consistent with Li-Fraumeni syndrome and/or Li-Fraumeni syndrome (PMID: 34240179; Invitae). ClinVar contains an entry for this variant (Variation ID: 376588). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (PMID: 12826609, 29979965, 30224644) indicates that this missense variant is expected to disrupt TP53 function with a positive predictive value of 97.5%. Experimental studies have shown that this missense change affects TP53 function (PMID: 12826609, 29979965, 30224644). This variant disrupts the p.Asp281 amino acid residue in TP53. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 15925506, 17390010, 17572079, 21305319, 23894400, 25293557). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic.
Institute of Medical Sciences, Banaras Hindu University RCV001292542 SCV001481124 likely pathogenic Gallbladder cancer 2020-10-30 no assertion criteria provided research

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