12-132668887-C-T
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3
The NM_006231.4(POLE):c.1847G>A(p.Arg616His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,613,852 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 (★★).
Frequency
Consequence
NM_006231.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152110Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000358 AC: 9AN: 251432Hom.: 0 AF XY: 0.0000294 AC XY: 4AN XY: 135894
GnomAD4 exome AF: 0.0000144 AC: 21AN: 1461742Hom.: 0 Cov.: 33 AF XY: 0.0000165 AC XY: 12AN XY: 727186
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152110Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74282
ClinVar
Submissions by phenotype
not provided Uncertain:3
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in a patient with colorectal cancer whose tumor lacked MSH2 and MSH6 protein expression (PMID: 33809179); This variant is associated with the following publications: (PMID: 27149842, 29056344, 28427513, 20951805, 33809179) -
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 616 of the POLE protein (p.Arg616His). This variant is present in population databases (rs764558974, gnomAD 0.008%). 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: 240408). 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) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on POLE protein function. 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. -
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not specified Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at