rs775815329
Variant summary
Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PVS1PP5
The NM_006231.4(POLE):c.448C>T(p.Arg150*) variant causes a stop gained change. The variant allele was found at a frequency of 0.0000048 in 1,459,340 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). Synonymous variant affecting the same amino acid position (i.e. R150R) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Consequence
NM_006231.4 stop_gained
Scores
Clinical Significance
Conservation
Publications
- POLE-related polyposis and colorectal cancer syndromeInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- colorectal cancer, susceptibility to, 12Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
- facial dysmorphism-immunodeficiency-livedo-short stature syndromeInheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
- intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiencyInheritance: AR Classification: STRONG Submitted by: G2P
- IMAGe syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Polymerase proofreading-related adenomatous polyposisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_pathogenic. The variant received 9 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| POLE | NM_006231.4 | c.448C>T | p.Arg150* | stop_gained | Exon 6 of 49 | ENST00000320574.10 | NP_006222.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| POLE | ENST00000320574.10 | c.448C>T | p.Arg150* | stop_gained | Exon 6 of 49 | 1 | NM_006231.4 | ENSP00000322570.5 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251154 AF XY: 0.00 show subpopulations
GnomAD4 exome AF: 0.00000480 AC: 7AN: 1459340Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1AN XY: 725370 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
not provided Pathogenic:1
This sequence change creates a premature translational stop signal (p.Arg150*) in the POLE gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in POLE are known to be pathogenic (PMID: 23230001, 25948378, 30503519). This variant is present in population databases (rs775815329, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with POLE-related conditions. ClinVar contains an entry for this variant (Variation ID: 473667). For these reasons, this variant has been classified as Pathogenic. -
Colorectal cancer, susceptibility to, 12 Uncertain:1
This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.R150* variant (also known as c.448C>T), located in coding exon 6 of the POLE gene, results from a C to T substitution at nucleotide position 448. This changes the amino acid from an arginine to a stop codon within coding exon 6. This alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. However, loss of function of POLE has not been clearly established as a mechanism of disease. 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