rs1555790271
Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_002691.4(POLD1):āc.920T>Cā(p.Ile307Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000000691 in 1,448,124 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. I307M) 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.920T>C | p.Ile307Thr | missense_variant | 8/27 | ENST00000440232.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
POLD1 | ENST00000440232.7 | c.920T>C | p.Ile307Thr | missense_variant | 8/27 | 1 | NM_002691.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD4 exome AF: 6.91e-7 AC: 1AN: 1448124Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0AN XY: 718150
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Colorectal cancer, susceptibility to, 10 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Sep 17, 2022 | 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. 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 POLD1 protein function. ClinVar contains an entry for this variant (Variation ID: 537062). This variant has not been reported in the literature in individuals affected with POLD1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces isoleucine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 307 of the POLD1 protein (p.Ile307Thr). - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Dec 22, 2023 | The p.I307T variant (also known as c.920T>C), located in coding exon 7 of the POLD1 gene, results from a T to C substitution at nucleotide position 920. The isoleucine at codon 307 is replaced by threonine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. 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