12-132643955-G-C
Variant summary
Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4
The NM_006231.4(POLE):āc.4172C>Gā(p.Ser1391Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,458 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. S1391P) has been classified as Uncertain significance.
Frequency
Consequence
NM_006231.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
POLE | NM_006231.4 | c.4172C>G | p.Ser1391Cys | missense_variant | 33/49 | ENST00000320574.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POLE | ENST00000320574.10 | c.4172C>G | p.Ser1391Cys | missense_variant | 33/49 | 1 | NM_006231.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152172Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000797 AC: 2AN: 251022Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135646
GnomAD4 exome AF: 0.0000164 AC: 24AN: 1461286Hom.: 0 Cov.: 32 AF XY: 0.0000138 AC XY: 10AN XY: 726860
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152172Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74342
ClinVar
Submissions by phenotype
not provided Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Dec 27, 2023 | This sequence change replaces serine, which is neutral and polar, with cysteine, which is neutral and slightly polar, at codon 1391 of the POLE protein (p.Ser1391Cys). This variant is present in population databases (rs149145495, gnomAD 0.0009%). 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: 246358). 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 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. - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Sep 23, 2024 | 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 - |
Colorectal cancer, susceptibility to, 12;C3554576:Facial dysmorphism-immunodeficiency-livedo-short stature syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Oct 31, 2018 | - - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 30, 2022 | The p.S1391C variant (also known as c.4172C>G), located in coding exon 33 of the POLE gene, results from a C to G substitution at nucleotide position 4172. The serine at codon 1391 is replaced by cysteine, an amino acid with dissimilar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Facial dysmorphism-immunodeficiency-livedo-short stature syndrome;CN280943:Familial colorectal cancer Other:1
not provided, no classification provided | phenotyping only | GenomeConnect - Invitae Patient Insights Network | - | Variant interpreted as Uncertain significance and reported on 03-04-2021 by Lab Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at