rs1193081581
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PP3_Moderate
The NM_006231.4(POLE):c.5572C>T(p.Arg1858Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,613,702 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 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
POLE | NM_006231.4 | c.5572C>T | p.Arg1858Cys | missense_variant | Exon 41 of 49 | ENST00000320574.10 | NP_006222.2 | |
POLE | XM_011534795.4 | c.5572C>T | p.Arg1858Cys | missense_variant | Exon 41 of 48 | XP_011533097.1 | ||
POLE | XM_011534797.4 | c.4651C>T | p.Arg1551Cys | missense_variant | Exon 33 of 40 | XP_011533099.1 | ||
POLE | XM_011534802.4 | c.2560C>T | p.Arg854Cys | missense_variant | Exon 17 of 24 | XP_011533104.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 151942Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251390Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135876
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461760Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 727178
GnomAD4 genome AF: 0.00000658 AC: 1AN: 151942Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74174
ClinVar
Submissions by phenotype
not provided Uncertain:3
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This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 1858 of the POLE protein (p.Arg1858Cys). This variant is present in population databases (no rsID available, gnomAD 0.006%). 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: 473745). 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 expected to disrupt POLE protein function with a positive 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; This variant is associated with the following publications: (PMID: 28481359, 29056344) -
not specified Uncertain:1
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Colorectal cancer, susceptibility to, 12 Uncertain:1
The POLE c.5572C>T (p.Arg1858Cys) missense change has a maximum subpopulation frequency of 0.0.0056% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org). The in silico tool REVEL predicts a deleterious effect on protein function, but to our knowledge this prediction has not been confirmed by functional studies. To our knowledge, this variant has not been reported in the literature in individuals with POLE-related disease. In summary, the evidence currently available is insufficient to determine the clinical significance of this variant. It has therefore been classified as of uncertain significance. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.R1858C variant (also known as c.5572C>T), located in coding exon 41 of the POLE gene, results from a C to T substitution at nucleotide position 5572. The arginine at codon 1858 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is conserved. 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