rs759497382
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_006231.4(POLE):c.4285A>T(p.Thr1429Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,438 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1429I) 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
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152122Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.00000797 AC: 2AN: 251006 AF XY: 0.00000737 show subpopulations
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461316Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 726862 show subpopulations
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152122Hom.: 0 Cov.: 33 AF XY: 0.0000538 AC XY: 4AN XY: 74314 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:3
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 -
This sequence change replaces threonine, which is neutral and polar, with serine, which is neutral and polar, at codon 1429 of the POLE protein (p.Thr1429Ser). This variant is present in population databases (rs759497382, gnomAD 0.003%). 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: 405827). 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. -
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Colorectal cancer, susceptibility to, 12;C3554576:Facial dysmorphism-immunodeficiency-livedo-short stature syndrome Uncertain:1
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Hereditary cancer-predisposing syndrome Uncertain:1
The p.T1429S variant (also known as c.4285A>T), located in coding exon 33 of the POLE gene, results from an A to T substitution at nucleotide position 4285. The threonine at codon 1429 is replaced by serine, an amino acid with similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. 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