19-50416436-C-T
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_002691.4(POLD1):c.2861C>T(p.Thr954Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0001 in 1,549,842 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. T954R) has been classified 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 -4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
POLD1 | NM_002691.4 | c.2861C>T | p.Thr954Met | missense_variant | 23/27 | ENST00000440232.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POLD1 | ENST00000440232.7 | c.2861C>T | p.Thr954Met | missense_variant | 23/27 | 1 | NM_002691.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152238Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000901 AC: 14AN: 155388Hom.: 0 AF XY: 0.0000728 AC XY: 6AN XY: 82362
GnomAD4 exome AF: 0.000106 AC: 148AN: 1397604Hom.: 0 Cov.: 31 AF XY: 0.0000972 AC XY: 67AN XY: 689518
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152238Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74382
ClinVar
Submissions by phenotype
not provided Uncertain:4
Uncertain significance, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Sep 05, 2019 | - - |
Uncertain significance, no assertion criteria provided | clinical testing | Department of Pathology and Laboratory Medicine, Sinai Health System | - | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden | Nov 03, 2021 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Feb 23, 2023 | In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in control subjects without personal history of colorectal cancer, but not in any colorectal cancer cases (Arora et al., 2015); This variant is associated with the following publications: (PMID: 26344056) - |
Colorectal cancer, susceptibility to, 10 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jan 31, 2024 | This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 954 of the POLD1 protein (p.Thr954Met). This variant is present in population databases (rs374016016, gnomAD 0.02%). 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: 239315). 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 with a positive 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. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at