rs879783561
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP3_Moderate
The NM_006231.4(POLE):c.6409G>A(p.Glu2137Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,613,782 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E2137D) has been classified 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 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
POLE | NM_006231.4 | c.6409G>A | p.Glu2137Lys | missense_variant | Exon 46 of 49 | ENST00000320574.10 | NP_006222.2 | |
POLE | XM_011534795.4 | c.6409G>A | p.Glu2137Lys | missense_variant | Exon 46 of 48 | XP_011533097.1 | ||
POLE | XM_011534797.4 | c.5488G>A | p.Glu1830Lys | missense_variant | Exon 38 of 40 | XP_011533099.1 | ||
POLE | XM_011534802.4 | c.3397G>A | p.Glu1133Lys | missense_variant | Exon 22 of 24 | XP_011533104.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000329 AC: 5AN: 152204Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251036Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135756
GnomAD4 exome AF: 0.00000958 AC: 14AN: 1461578Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5AN XY: 727098
GnomAD4 genome AF: 0.0000329 AC: 5AN: 152204Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3AN XY: 74356
ClinVar
Submissions by phenotype
not provided Uncertain:2
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 2137 of the POLE protein (p.Glu2137Lys). This variant is present in population databases (no rsID available, gnomAD 0.004%). 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: 473802). 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. -
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 -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.E2137K variant (also known as c.6409G>A), located in coding exon 46 of the POLE gene, results from a G to A substitution at nucleotide position 6409. The glutamic acid at codon 2137 is replaced by lysine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. 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