NM_000546.6:c.401T>G
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1PM2PP3_StrongPP5_Moderate
The NM_000546.6(TP53):c.401T>G(p.Phe134Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).
Frequency
Consequence
NM_000546.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 10 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 250942Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135642
GnomAD4 exome AF: 0.00000137 AC: 2AN: 1461830Hom.: 0 Cov.: 35 AF XY: 0.00 AC XY: 0AN XY: 727200
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
not provided Pathogenic:1
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Hereditary cancer-predisposing syndrome Pathogenic:1
The p.F134C variant (also known as c.401T>G), located in coding exon 4 of the TP53 gene, results from a T to G substitution at nucleotide position 401. The phenylalanine at codon 134 is replaced by cysteine, an amino acid with highly dissimilar properties. This variant is in the DNA binding domain of the TP53 protein and is reported to have loss of transactivation capacity in yeast based assays (IARC TP53 database; Kato S et al. Proc Natl Acad Sci USA. 2003 Jul 8;100(14):8424-9). Structural analysis indicates F134 is a core residue that supports residues responsible for binding DNA. Mutation at this position results in large instability within this region (Bullock AN, Nat. Rev. Cancer 2001 Oct; 1(1):68-76). This variant was not reported in population based cohorts in the following databases: Database of Single Nucleotide Polymorphisms (dbSNP), NHLBI Exome Sequencing Project (ESP), and 1000 Genomes Project. In the ESP, this variant was not observed in 6503 samples (13006 alleles) with coverage at this position. To date, this alteration has been detected with an allele frequency of approximately 0.0003% (greater than 250000 alleles tested) in our clinical cohort. This amino acid position is well conserved through mammals. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the majority of available evidence to date, this variant is likely to be pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at