12-132680206-T-C
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2
The NM_006231.4(POLE):āc.302A>Gā(p.Lys101Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,614,022 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K101E) 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/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
POLE | NM_006231.4 | c.302A>G | p.Lys101Arg | missense_variant | 4/49 | ENST00000320574.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POLE | ENST00000320574.10 | c.302A>G | p.Lys101Arg | missense_variant | 4/49 | 1 | NM_006231.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152180Hom.: 0 Cov.: 33
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461842Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0AN XY: 727222
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152180Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74356
ClinVar
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Oct 05, 2023 | This sequence change replaces lysine, which is basic and polar, with arginine, which is basic and polar, at codon 101 of the POLE protein (p.Lys101Arg). This variant is not present in population databases (gnomAD no frequency). 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: 540733). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt POLE protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jan 01, 2024 | The p.K101R variant (also known as c.302A>G), located in coding exon 4 of the POLE gene, results from an A to G substitution at nucleotide position 302. The lysine at codon 101 is replaced by arginine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at