12-132642868-G-C
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_006231.4(POLE):c.4680C>G(p.Asp1560Glu) variant causes a missense change. The variant allele was found at a frequency of 0.0000316 in 1,613,892 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. D1560V) 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
Genome browser will be placed here
ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| POLE | NM_006231.4 | c.4680C>G | p.Asp1560Glu | missense_variant | Exon 36 of 49 | ENST00000320574.10 | NP_006222.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| POLE | ENST00000320574.10 | c.4680C>G | p.Asp1560Glu | missense_variant | Exon 36 of 49 | 1 | NM_006231.4 | ENSP00000322570.5 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152226Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251150 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.0000322 AC: 47AN: 1461666Hom.: 0 Cov.: 34 AF XY: 0.0000358 AC XY: 26AN XY: 727128 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152226Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74362 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
This sequence change replaces aspartic acid, which is acidic and polar, with glutamic acid, which is acidic and polar, at codon 1560 of the POLE protein (p.Asp1560Glu). This variant is present in population databases (rs774425403, gnomAD 0.006%). This missense change has been observed in individual(s) with breast cancer (PMID: 35534704). ClinVar contains an entry for this variant (Variation ID: 240534). 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.
In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge
Hereditary cancer-predisposing syndrome Uncertain:1
The p.D1560E variant (also known as c.4680C>G), located in coding exon 36 of the POLE gene, results from a C to G substitution at nucleotide position 4680. The aspartic acid at codon 1560 is replaced by glutamic acid, an amino acid with highly similar properties. This variant was observed in an individual with a personal and family history of breast cancer in a cohort of 1682 individuals who underwent multi-gene panel testing (de Oliveira JM et al. Eur J Hum Genet, 2022 Jul;30:818-823). 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