rs115455318
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4
The NM_006231.4(POLE):c.3881G>T(p.Arg1294Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,612,914 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_006231.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152242Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000122 AC: 3AN: 246570Hom.: 0 AF XY: 0.0000149 AC XY: 2AN XY: 134444
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1460672Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 726650
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152242Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74374
ClinVar
Submissions by phenotype
not provided Uncertain:2
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 1294 of the POLE protein (p.Arg1294Leu). This variant is present in population databases (rs115455318, gnomAD 0.003%). 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: 405878). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt POLE protein function with a negative predictive value of 80%. 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. -
POLE-related disorder Uncertain:1
The POLE c.3881G>T variant is predicted to result in the amino acid substitution p.Arg1294Leu. This variant was reported as a variant of uncertain significance in a cohort of patients with colorectal adenoma (Patel et al. 2021. PubMed ID: 33436027). This variant is reported in 0.0027% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-133226016-C-A) and is interpreted as uncertain significance in ClinVar (https://www.ncbi.nlm.nih.gov/clinvar/variation/405878/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Hereditary cancer-predisposing syndrome Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at