19-50413499-A-G
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_002691.4(POLD1):c.2228A>G(p.Asn743Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000685 in 1,459,124 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 (★★).
Frequency
Consequence
NM_002691.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
POLD1 | NM_002691.4 | c.2228A>G | p.Asn743Ser | missense_variant | Exon 18 of 27 | ENST00000440232.7 | NP_002682.2 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD4 exome AF: 0.00000685 AC: 10AN: 1459124Hom.: 0 Cov.: 31 AF XY: 0.00000551 AC XY: 4AN XY: 725720
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
not provided Uncertain:1
Not observed in large population cohorts (Lek 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -
Colorectal cancer, susceptibility to, 10 Uncertain:1
This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 743 of the POLD1 protein (p.Asn743Ser). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with POLD1-related conditions. ClinVar contains an entry for this variant (Variation ID: 946006). 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 POLD1 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 Benign:1
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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at