rs192908615
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_006231.4(POLE):c.4738C>T(p.Arg1580Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000149 in 1,613,462 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152150Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000199 AC: 5AN: 250814Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135714
GnomAD4 exome AF: 0.0000137 AC: 20AN: 1461194Hom.: 0 Cov.: 34 AF XY: 0.0000110 AC XY: 8AN XY: 726796
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152268Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3AN XY: 74462
ClinVar
Submissions by phenotype
not provided Uncertain:4
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This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1580 of the POLE protein (p.Arg1580Trp). This variant is present in population databases (rs192908615, 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: 405742). 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. -
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; Observed in a patient with breast cancer (Chen et al., 2020); This variant is associated with the following publications: (PMID: 32091409) -
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Hereditary cancer-predisposing syndrome Uncertain:1
The c.4738C>T (p.R1580W) alteration is located in exon 37 (coding exon 37) of the POLE gene. This alteration results from a C to T substitution at nucleotide position 4738, causing the arginine (R) at amino acid position 1580 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at