rs1486909310
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The NM_007194.4(CHEK2):c.650G>T(p.Arg217Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000000692 in 1,444,372 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R217R) has been classified as Likely benign.
Frequency
Consequence
NM_007194.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CHEK2 | NM_007194.4 | c.650G>T | p.Arg217Ile | missense_variant | 5/15 | ENST00000404276.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CHEK2 | ENST00000404276.6 | c.650G>T | p.Arg217Ile | missense_variant | 5/15 | 1 | NM_007194.4 | P2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD4 exome AF: 6.92e-7 AC: 1AN: 1444372Hom.: 0 Cov.: 28 AF XY: 0.00000139 AC XY: 1AN XY: 717726
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Familial cancer of breast Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | May 23, 2017 | In summary, this variant has uncertain impact on CHEK2 function. The available evidence is currently insufficient to determine its role in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with a CHEK2-related disease. This variant is not present in population databases (ExAC no frequency). This sequence change replaces arginine with isoleucine at codon 217 of the CHEK2 protein (p.Arg217Ile). The arginine residue is moderately conserved and there is a moderate physicochemical difference between arginine and isoleucine. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Oct 16, 2023 | This missense variant replaces arginine with isoleucine at codon 217 of the CHEK2 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with CHEK2-related disorders in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at