ClinVar Miner

Submissions for variant NM_000546.5(TP53):c.827C>A (p.Ala276Asp) (rs786202082)

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Total submissions: 2
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Ambry Genetics RCV000223364 SCV000276875 likely pathogenic Hereditary cancer-predisposing syndrome 2015-07-02 criteria provided, single submitter clinical testing Lines of evidence used in support of classification: Deficient protein function in appropriate functional assay(s),Well-characterized mutation at same position,In silico models in agreement (deleterious) and/or completely conserved position in appropriate species
GeneDx RCV000236401 SCV000293907 likely pathogenic not provided 2016-02-05 criteria provided, single submitter clinical testing This variant is denoted TP53 c.827C>A at the cDNA level, p.Ala276Asp (A276D) at the protein level, and results in the change of an Alanine to an Aspartic Acid (GCC>GAC). This variant was shown to display near absent transactivation capacity in yeast based luciferase reporter assays and was unable to suppress growth in a colony growth assay (Ko 2002, Kato 2003). TP53 Ala276Asp was not observed in approximately 6,500 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, suggesting it is not a common benign variant in these populations. Since Alanine and Aspartic Acid differ in polarity, charge, size or other properties, this is considered a non-conservative amino acid substitution. TP53 Ala276Asp occurs at a position that is conserved across species and is located in DNA binding domain and within the region of interaction with HIPK1, ZNF385A, AXIN1, and E4F1 (UniProt). In silico analyses predict that this variant is probably damaging to protein structure and function. Based on the currently available evidence, we consider TP53 Ala276Asp to be a likely pathogenic variant.

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