rs373192520
Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2
The NM_002691.4(POLD1):c.632G>A(p.Arg211His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000564 in 1,597,058 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_002691.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -3 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
POLD1 | NM_002691.4 | c.632G>A | p.Arg211His | missense_variant | Exon 6 of 27 | ENST00000440232.7 | NP_002682.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000197 AC: 3AN: 152218Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000719 AC: 17AN: 236504Hom.: 0 AF XY: 0.0000861 AC XY: 11AN XY: 127804
GnomAD4 exome AF: 0.0000602 AC: 87AN: 1444840Hom.: 0 Cov.: 34 AF XY: 0.0000558 AC XY: 40AN XY: 717002
GnomAD4 genome AF: 0.0000197 AC: 3AN: 152218Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3AN XY: 74358
ClinVar
Submissions by phenotype
not provided Uncertain:2Benign:1
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POLD1: BP4 -
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 26344056, 30279230, 31422818, 26438511) -
not specified Uncertain:2
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The p.Arg211His variant in POLD1 has not been previously reported in individuals with colorectal cancer, but has been identified in 8/63688 of European chromoso mes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; d bSNP rs373192520). Computational prediction tools and conservation analysis sugg est that the p.Arg211His variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, the clinical s ignificance of the p.Arg211His variant is uncertain. -
Colorectal cancer, susceptibility to, 10 Uncertain:1
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 211 of the POLD1 protein (p.Arg211His). This variant is present in population databases (rs373192520, gnomAD 0.01%). 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: 439259). 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 Uncertain:1
The p.R211H variant (also known as c.632G>A), located in coding exon 5 of the POLD1 gene, results from a G to A substitution at nucleotide position 632. The arginine at codon 211 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear. -
Colorectal cancer, susceptibility to, 10;C3715192:Mandibular hypoplasia-deafness-progeroid syndrome;C5935622:Immunodeficiency 120 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at