rs751818136
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_006231.4(POLE):c.6107A>T(p.Glu2036Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000991 in 1,613,854 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign 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. E2036G) has been classified as Uncertain significance.
Frequency
Consequence
NM_006231.4 missense
Scores
Clinical Significance
Conservation
Publications
- POLE-related polyposis and colorectal cancer syndromeInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- colorectal cancer, susceptibility to, 12Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
- facial dysmorphism-immunodeficiency-livedo-short stature syndromeInheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
- intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiencyInheritance: AR Classification: STRONG Submitted by: G2P
- IMAGe syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Polymerase proofreading-related adenomatous polyposisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| POLE | NM_006231.4 | c.6107A>T | p.Glu2036Val | missense_variant | Exon 44 of 49 | ENST00000320574.10 | NP_006222.2 | |
| POLE | XM_011534795.4 | c.6107A>T | p.Glu2036Val | missense_variant | Exon 44 of 48 | XP_011533097.1 | ||
| POLE | XM_011534797.4 | c.5186A>T | p.Glu1729Val | missense_variant | Exon 36 of 40 | XP_011533099.1 | ||
| POLE | XM_011534802.4 | c.3095A>T | p.Glu1032Val | missense_variant | Exon 20 of 24 | XP_011533104.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000658 AC: 1AN: 152080Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000160 AC: 4AN: 250248 AF XY: 0.0000221 show subpopulations
GnomAD4 exome AF: 0.0000103 AC: 15AN: 1461774Hom.: 0 Cov.: 32 AF XY: 0.0000124 AC XY: 9AN XY: 727186 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000658 AC: 1AN: 152080Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74278 show subpopulations ⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
This sequence change replaces glutamic acid, which is acidic and polar, with valine, which is neutral and non-polar, at codon 2036 of the POLE protein (p.Glu2036Val). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 405823). 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 does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 27060149) -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.E2036V variant (also known as c.6107A>T), located in coding exon 44 of the POLE gene, results from an A to T substitution at nucleotide position 6107. The glutamic acid at codon 2036 is replaced by valine, an amino acid with dissimilar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated 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