rs137860861
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 2P and 9B. PM5BP4_StrongBP6BS1
The NM_006231.4(POLE):c.1021G>T(p.Ala341Ser) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000477 in 1,612,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/26 in silico tools predict a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense has been classified as Likely pathogenic.
Frequency
Consequence
NM_006231.4 missense, splice_region
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: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000217 AC: 33AN: 152184Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000636 AC: 16AN: 251438 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.0000301 AC: 44AN: 1460416Hom.: 0 Cov.: 30 AF XY: 0.0000234 AC XY: 17AN XY: 726674 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000217 AC: 33AN: 152184Hom.: 0 Cov.: 32 AF XY: 0.000323 AC XY: 24AN XY: 74350 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:1Benign:2
In silico analysis indicates that this missense variant does not alter protein structure/function; In silico analysis suggests this variant may impact gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 20951805, 26251183) -
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Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
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This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
POLE-related disorder Uncertain:1
The POLE c.1021G>T variant is predicted to result in the amino acid substitution p.Ala341Ser. To our knowledge, this variant has not been reported in the literature in association with POLE-related disease. This variant is reported in 0.096% of alleles in individuals of African descent in gnomAD and is present in the NHLBI GO Exome Sequencing Project cohort, which included in gnomAD (Table S5, Aoude et al. 2015. PubMed ID: 26251183). It has conflicting interpretations of likely benign and uncertain significance in ClinVar (https://preview.ncbi.nlm.nih.gov/clinvar/variation/240372/). Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Colorectal cancer, susceptibility to, 12 Benign:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at