22-28725343-A-C
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate
The NM_007194.4(CHEK2):āc.344T>Gā(p.Phe115Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,798 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 Uncertain significance (ā ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F115I) has been classified as Uncertain significance.
Frequency
Consequence
NM_007194.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CHEK2 | NM_007194.4 | c.344T>G | p.Phe115Cys | missense_variant | 3/15 | ENST00000404276.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CHEK2 | ENST00000404276.6 | c.344T>G | p.Phe115Cys | missense_variant | 3/15 | 1 | NM_007194.4 | P2 |
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251234Hom.: 0 AF XY: 0.00000737 AC XY: 1AN XY: 135766
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461798Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727192
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Apr 26, 2022 | The p.F115C variant (also known as c.344T>G), located in coding exon 2 of the CHEK2 gene, results from a T to G substitution at nucleotide position 344. The phenylalanine at codon 115 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Familial cancer of breast Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Feb 10, 2023 | This variant has not been reported in the literature in individuals affected with CHEK2-related conditions. ClinVar contains an entry for this variant (Variation ID: 481735). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. 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. This variant is present in population databases (no rsID available, gnomAD 0.0009%). This sequence change replaces phenylalanine, which is neutral and non-polar, with cysteine, which is neutral and slightly polar, at codon 115 of the CHEK2 protein (p.Phe115Cys). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at