rs1555793868
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_002691.4(POLD1):āc.3241A>Gā(p.Met1081Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,456,474 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M1081K) has been classified as Uncertain significance.
Frequency
Consequence
NM_002691.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
POLD1 | NM_002691.4 | c.3241A>G | p.Met1081Val | missense_variant | 27/27 | ENST00000440232.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POLD1 | ENST00000440232.7 | c.3241A>G | p.Met1081Val | missense_variant | 27/27 | 1 | NM_002691.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 31
GnomAD4 exome AF: 6.87e-7 AC: 1AN: 1456474Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 724092
GnomAD4 genome ? Cov.: 31
ClinVar
Submissions by phenotype
Colorectal cancer, susceptibility to, 10 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Oct 10, 2023 | This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1081 of the POLD1 protein (p.Met1081Val). 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: 537123). 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 expected to disrupt POLD1 protein function. 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 | Apr 23, 2023 | The p.M1081V variant (also known as c.3241A>G), located in coding exon 26 of the POLD1 gene, results from an A to G substitution at nucleotide position 3241. The methionine at codon 1081 is replaced by valine, an amino acid with highly 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:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at