rs1355767159
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate
The ENST00000320574.10(POLE):c.34G>A(p.Asp12Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000665 in 1,503,572 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 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. D12G) has been classified as Uncertain significance.
Frequency
Consequence
ENST00000320574.10 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
POLE | NM_006231.4 | c.34G>A | p.Asp12Asn | missense_variant | 1/49 | ENST00000320574.10 | NP_006222.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
POLE | ENST00000320574.10 | c.34G>A | p.Asp12Asn | missense_variant | 1/49 | 1 | NM_006231.4 | ENSP00000322570 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000198 AC: 3AN: 151692Hom.: 0 Cov.: 33
GnomAD4 exome AF: 0.00000518 AC: 7AN: 1351880Hom.: 0 Cov.: 32 AF XY: 0.00000450 AC XY: 3AN XY: 667174
GnomAD4 genome AF: 0.0000198 AC: 3AN: 151692Hom.: 0 Cov.: 33 AF XY: 0.0000135 AC XY: 1AN XY: 74064
ClinVar
Submissions by phenotype
not provided Uncertain:2
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Oct 27, 2023 | This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 12 of the POLE protein (p.Asp12Asn). 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: 540767). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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 | Aug 28, 2019 | Not observed at a significant frequency in large population cohorts (Lek 2016); 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 - |
POLE-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Jul 19, 2023 | The POLE c.34G>A variant is predicted to result in the amino acid substitution p.Asp12Asn. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.012% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-133263868-C-T). In ClinVar, this variant is currently listed as 'uncertain significance' by several outside laboratories (https://preview.ncbi.nlm.nih.gov/clinvar/variation/540767/). 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
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 25, 2024 | The c.34G>A (p.D12N) alteration is located in exon 1 (coding exon 1) of the POLE gene. This alteration results from a G to A substitution at nucleotide position 34, causing the aspartic acid (D) at amino acid position 12 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, 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
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Mar 12, 2022 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at