rs895236041
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3
The NM_006231.4(POLE):c.1019A>T(p.Glu340Val) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000502 in 1,593,602 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/23 in silico tools predict a damaging outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_006231.4 missense, splice_region
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 33
GnomAD4 exome AF: 0.00000486 AC: 7AN: 1441422Hom.: 0 Cov.: 29 AF XY: 0.00000557 AC XY: 4AN XY: 717980
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152180Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74330
ClinVar
Submissions by phenotype
not specified Uncertain:1
- -
not provided Uncertain:1
This sequence change replaces glutamic acid, which is acidic and polar, with valine, which is neutral and non-polar, at codon 340 of the POLE protein (p.Glu340Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with POLE-related conditions. ClinVar contains an entry for this variant (Variation ID: 439260). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. RNA analysis performed to evaluate the impact of this missense change on mRNA splicing indicates it does not significantly alter splicing (Invitae). 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. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.E340V variant (also known as c.1019A>T), located in coding exon 10 of the POLE gene, results from an A to T substitution at nucleotide position 1019. The glutamic acid at codon 340 is replaced by valine, an amino acid with 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. Based on the available evidence, the clinical significance of this variant remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at