rs780246896
Positions:
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_006231.4(POLE):c.242C>T(p.Ala81Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000167 in 1,613,856 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. A81T) has been classified as Uncertain significance.
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000017 ( 0 hom. )
Consequence
POLE
NM_006231.4 missense
NM_006231.4 missense
Scores
2
9
8
Clinical Significance
Conservation
PhyloP100: 6.28
Genes affected
POLE (HGNC:9177): (DNA polymerase epsilon, catalytic subunit) This gene encodes the catalytic subunit of DNA polymerase epsilon. The enzyme is involved in DNA repair and chromosomal DNA replication. Mutations in this gene have been associated with colorectal cancer 12 and facial dysmorphism, immunodeficiency, livedo, and short stature. [provided by RefSeq, Sep 2013]
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ACMG classification
Classification made for transcript
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
POLE | NM_006231.4 | c.242C>T | p.Ala81Val | missense_variant | 3/49 | ENST00000320574.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POLE | ENST00000320574.10 | c.242C>T | p.Ala81Val | missense_variant | 3/49 | 1 | NM_006231.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152162Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251478Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135914
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GnomAD4 exome AF: 0.0000171 AC: 25AN: 1461694Hom.: 0 Cov.: 31 AF XY: 0.0000248 AC XY: 18AN XY: 727168
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GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152162Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74320
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Nov 08, 2023 | This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 81 of the POLE protein (p.Ala81Val). This variant is present in population databases (rs780246896, gnomAD 0.01%). 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: 405857). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae 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. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Nov 28, 2023 | The p.A81V variant (also known as c.242C>T), located in coding exon 3 of the POLE gene, results from a C to T substitution at nucleotide position 242. The alanine at codon 81 is replaced by valine, an amino acid with 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. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Pathogenic
DEOGEN2
Uncertain
D
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
D
M_CAP
Benign
T
MetaRNN
Uncertain
D
MetaSVM
Benign
T
MutationAssessor
Uncertain
M
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Uncertain
D
REVEL
Benign
Sift
Benign
T
Sift4G
Uncertain
T
Polyphen
P
Vest4
MutPred
Gain of catalytic residue at S80 (P = 0.0878);
MVP
MPC
ClinPred
T
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at