NM_006231.4:c.2645A>G
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS1
The NM_006231.4(POLE):c.2645A>G(p.Asn882Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000527 in 1,614,100 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N882H) has been classified as Uncertain significance.
Frequency
Consequence
NM_006231.4 missense
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: Benign. The variant received -7 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_006231.4. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| POLE | NM_006231.4 | MANE Select | c.2645A>G | p.Asn882Ser | missense | Exon 23 of 49 | NP_006222.2 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| POLE | ENST00000320574.10 | TSL:1 MANE Select | c.2645A>G | p.Asn882Ser | missense | Exon 23 of 49 | ENSP00000322570.5 | ||
| POLE | ENST00000535270.5 | TSL:1 | c.2564A>G | p.Asn855Ser | missense | Exon 22 of 48 | ENSP00000445753.1 | ||
| POLE | ENST00000537064.5 | TSL:1 | n.*1692A>G | non_coding_transcript_exon | Exon 23 of 49 | ENSP00000442578.1 |
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152216Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000477 AC: 12AN: 251482 AF XY: 0.0000589 show subpopulations
GnomAD4 exome AF: 0.0000527 AC: 77AN: 1461884Hom.: 0 Cov.: 32 AF XY: 0.0000495 AC XY: 36AN XY: 727244 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000526 AC: 8AN: 152216Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74362 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1Benign:2
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity.
BP4_Strong+BP1_Supporting+PM2_Supporting
Colorectal cancer, susceptibility to, 12 Uncertain:2
This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868].
not provided Uncertain:2
In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Observed in individuals with a personal or family history of breast cancer (Merdad et al., 2015); This variant is associated with the following publications: (PMID: 25923920)
This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 882 of the POLE protein (p.Asn882Ser). This variant is present in population databases (rs539312991, gnomAD 0.009%). This missense change has been observed in individual(s) with breast cancer (PMID: 25923920). ClinVar contains an entry for this variant (Variation ID: 240439). 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 POLE 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.
not specified Uncertain:1
Polymerase proofreading-related adenomatous polyposis Uncertain:1
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at