rs905858506
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_006231.4(POLE):c.6065G>A(p.Ser2022Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,388 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. S2022R) 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.6065G>A | p.Ser2022Asn | missense_variant | Exon 44 of 49 | ENST00000320574.10 | NP_006222.2 | |
| POLE | XM_011534795.4 | c.6065G>A | p.Ser2022Asn | missense_variant | Exon 44 of 48 | XP_011533097.1 | ||
| POLE | XM_011534797.4 | c.5144G>A | p.Ser1715Asn | missense_variant | Exon 36 of 40 | XP_011533099.1 | ||
| POLE | XM_011534802.4 | c.3053G>A | p.Ser1018Asn | missense_variant | Exon 20 of 24 | XP_011533104.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152150Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000200 AC: 5AN: 249414 AF XY: 0.00000739 show subpopulations
GnomAD4 exome AF: 0.0000192 AC: 28AN: 1461238Hom.: 0 Cov.: 32 AF XY: 0.0000165 AC XY: 12AN XY: 726988 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152150Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74322 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
This sequence change replaces serine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 2022 of the POLE protein (p.Ser2022Asn). This variant is present in population databases (no rsID available, gnomAD 0.004%). 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: 405648). 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 indicates that this missense variant does not alter protein structure/function; Observed with POLE p.(Arg52Trp) in an individual with family history of colorectal, breast and other cancer in published literature (PMID: 35534704); This variant is associated with the following publications: (PMID: 35534704) -
Colorectal cancer, susceptibility to, 12 Uncertain:1
This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -
POLE-related disorder Uncertain:1
The POLE c.6065G>A variant is predicted to result in the amino acid substitution p.Ser2022Asn. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0044% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-133209321-C-T). It is interpreted as uncertain significance in ClinVar (https://preview.ncbi.nlm.nih.gov/clinvar/variation/405648/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.S2022N variant (also known as c.6065G>A), located in coding exon 44 of the POLE gene, results from a G to A substitution at nucleotide position 6065. The serine at codon 2022 is replaced by asparagine, 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. -
Colorectal cancer, susceptibility to, 12;C3554576:Facial dysmorphism-immunodeficiency-livedo-short stature syndrome;C5193036:Intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiency Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at