Genetic Information

Gene & Transcript Details

Gene
POLE
Transcript
NM_006231.4 MANE Select
Total Exons
Reference Sequence
NC_000012.11
Alternative Transcripts
IDStatusDetails
NM_006231.4 MANE Select 7823 nt | 28–6888
NM_006231.2 Alternative 7859 nt | 45–6905
NM_006231.3 RefSeq Select 8024 nt | 210–7070

Variant Details

HGVS Notation
NM_006231.4:c.*18G>T
Protein Change
?
Location
Exon 49 (Exon 49 of )
49
5'Exon Structure3'
Functional Consequence
Loss of Function
Alternate Identifiers

Clinical & Population Data

Population Frequency

gnomAD
Global Frequency
0.0369 in 100,000
Extremely Rare
ACMG Criteria Applied PM2
This variant is absent or extremely rare in population databases (PM2 criteria applies).

ClinVar

Open
Classification
Uncertain Significance (VUS)
2 publications
Clinical Statement

"This variant has been reported in ClinVar as Likely benign (3 clinical laboratories) and as Uncertain significance (1 clinical laboratories)."

COSMIC Somatic Evidence

Open
COSMIC ID
Recurrence
0 occurrences
PM1 Criteria
Not Applied

Functional Impact & Domains

Functional Domain

Hotspot Status
Not a hotspot
Domain Summary
This variant is not located in a mutational hotspot or critical domain.
Related Variants in This Domain
No evidence of other pathogenic variants at this position in gene POLE.

Functional Studies & Therapeutic Relevance

Functional Summary

The POLE c.18G>T variant has not been functionally characterized.

Database Previews
OncoKB
OncoKB Preview
JAX-CKB
JAX-CKB Preview

Click on previews to view full database entries. External databases may require institutional access.

Computational Analysis

Pathogenicity Predictions

SpliceAI
Predictor Consensus
Mixed/VUS
PP3 Applied
No
REVEL Score
0.0
Threshold: ≥0.75 = PP3 applied

SpliceAI Scores

Window: ±500bp
Effect Type Score Position
- Acceptor Loss (AL) 0.0 433 bp
- Donor Loss (DL) 0.0 226 bp
+ Acceptor Gain (AG) 0.0 430 bp
+ Donor Gain (DG) 0.0 83 bp
High impact (≥0.5) Medium impact (0.2-0.49) Low impact (<0.2)

VCEP Guidelines

Applied ACMG/AMP Criteria (VCEP Specific)

Filter Criteria:
PVS1

PVS1 (Not Applied)

According to standard ACMG guidelines, the rule for PVS1 is: 'Null variant (nonsense, frameshift, canonical ±1 or 2 splice sites, initiation codon, single exon deletion in a LoF gene)'. The evidence for this variant shows it is a 3′ UTR single-nucleotide change (c.*18G>T), not a null coding variant. Therefore, this criterion is not applied.

PS1

PS1 (Not Applied)

According to standard ACMG guidelines, the rule for PS1 is: 'Same amino acid change as a known pathogenic variant but different nucleotide change'. The evidence for this variant shows no amino acid change is encoded (noncoding 3′ UTR). Therefore, this criterion is not applied.

PS2

PS2 (Not Applied)

According to standard ACMG guidelines, the rule for PS2 is: 'De novo (both maternity and paternity confirmed) in a patient'. The evidence for this variant shows no data on de novo occurrence. Therefore, this criterion is not applied.

PS3

PS3 (Not Applied)

According to standard ACMG guidelines, the rule for PS3 is: 'Well-established functional studies supportive of a damaging effect'. The evidence for this variant shows no functional characterization studies. Therefore, this criterion is not applied.

PS4

PS4 (Not Applied)

According to standard ACMG guidelines, the rule for PS4 is: 'Prevalence in affected individuals significantly increased compared with controls'. The evidence for this variant shows no case-control or cohort data. Therefore, this criterion is not applied.

PM1

PM1 (Not Applied)

According to standard ACMG guidelines, the rule for PM1 is: 'Located in a mutational hot spot or well-established functional domain without benign variation'. The evidence for this variant shows it is in the 3′ UTR outside any protein domain. Therefore, this criterion is not applied.

PM2

PM2 (Moderate)

According to standard ACMG guidelines, the rule for PM2 is: 'Absent from controls (or at extremely low frequency if recessive)'. The evidence for this variant shows MAF=0.0369% in gnomAD with no homozygotes. Therefore, this criterion is applied at Moderate strength because the variant is extremely rare in population databases.

PM3

PM3 (Not Applied)

According to standard ACMG guidelines, the rule for PM3 is: 'Detected in trans with a pathogenic variant for recessive disorders'. The evidence for this variant shows no information on trans configuration or recessive inheritance. Therefore, this criterion is not applied.

PM4

PM4 (Not Applied)

According to standard ACMG guidelines, the rule for PM4 is: 'Protein length changes due to in-frame deletions/insertions or stop-loss variants'. The evidence for this variant shows no coding change or protein length alteration. Therefore, this criterion is not applied.

PM5

PM5 (Not Applied)

According to standard ACMG guidelines, the rule for PM5 is: 'Novel missense change at an amino acid residue where a different pathogenic missense change has been seen'. The evidence for this variant shows it is noncoding and not a missense change. Therefore, this criterion is not applied.

PM6

PM6 (Not Applied)

According to standard ACMG guidelines, the rule for PM6 is: 'Assumed de novo, but without confirmation of paternity and maternity'. The evidence for this variant shows no de novo data. Therefore, this criterion is not applied.

PP1

PP1 (Not Applied)

According to standard ACMG guidelines, the rule for PP1 is: 'Co-segregation with disease in multiple affected family members'. The evidence for this variant shows no segregation data. Therefore, this criterion is not applied.

PP2

PP2 (Not Applied)

According to standard ACMG guidelines, the rule for PP2 is: 'Missense variant in a gene with a low rate of benign missense variation and where missense variants are a common mechanism of disease'. The evidence for this variant shows it is noncoding. Therefore, this criterion is not applied.

PP3

PP3 (Not Applied)

According to standard ACMG guidelines, the rule for PP3 is: 'Multiple lines of computational evidence support a deleterious effect'. The evidence for this variant shows in silico predictors (CADD=-0.10, SpliceAI=0) predict no impact. Therefore, this criterion is not applied.

PP4

PP4 (Not Applied)

According to standard ACMG guidelines, the rule for PP4 is: 'Patient phenotype highly specific for a disease with a single genetic etiology'. The evidence for this variant shows no phenotype data. Therefore, this criterion is not applied.

PP5

PP5 (Not Applied)

According to standard ACMG guidelines, the rule for PP5 is: 'Reputable source reports variant as pathogenic, but without accessible evidence'. The evidence for this variant shows ClinVar entries as Likely benign and VUS, with no pathogenic reports. Therefore, this criterion is not applied.

BA1

BA1 (Not Applied)

According to standard ACMG guidelines, the rule for BA1 is: 'Allele frequency is too high for the disorder'. The evidence for this variant shows MAF=0.0369%, below any high-frequency threshold. Therefore, this criterion is not applied.

BS1

BS1 (Not Applied)

According to standard ACMG guidelines, the rule for BS1 is: 'Allele frequency greater than expected for disorder'. The evidence for this variant shows MAF well below thresholds for common benign variants. Therefore, this criterion is not applied.

BS2

BS2 (Not Applied)

According to standard ACMG guidelines, the rule for BS2 is: 'Observed in healthy adult individuals for a dominant disorder'. The evidence for this variant shows no clinical observation in healthy individuals. Therefore, this criterion is not applied.

BS3

BS3 (Not Applied)

According to standard ACMG guidelines, the rule for BS3 is: 'Well-established functional studies show no damaging effect'. The evidence for this variant shows no functional studies. Therefore, this criterion is not applied.

BS4

BS4 (Not Applied)

According to standard ACMG guidelines, the rule for BS4 is: 'Lack of segregation in affected family members'. The evidence for this variant shows no segregation data. Therefore, this criterion is not applied.

BP1

BP1 (Not Applied)

According to standard ACMG guidelines, the rule for BP1 is: 'Missense variant in a gene where only LoF causes disease'. The evidence for this variant shows it is noncoding. Therefore, this criterion is not applied.

BP2

BP2 (Not Applied)

According to standard ACMG guidelines, the rule for BP2 is: 'Observed in trans with a pathogenic variant for dominant disorders or in cis for recessive disorders'. The evidence for this variant shows no phase data. Therefore, this criterion is not applied.

BP3

BP3 (Not Applied)

According to standard ACMG guidelines, the rule for BP3 is: 'In-frame indels in a repetitive region without known function'. The evidence for this variant shows a single-nucleotide change, not an in-frame indel. Therefore, this criterion is not applied.

BP4

BP4 (Supporting)

According to standard ACMG guidelines, the rule for BP4 is: 'Multiple lines of computational evidence suggest no impact on gene or gene product'. The evidence for this variant shows CADD score of -0.10 and SpliceAI scores of 0 predicting no splicing impact. Therefore, this criterion is applied at Supporting strength because in silico predictors consistently indicate no functional effect.

BP5

BP5 (Not Applied)

According to standard ACMG guidelines, the rule for BP5 is: 'Variant found in a case with an alternate molecular basis for disease'. The evidence for this variant shows no case reports with alternate diagnoses. Therefore, this criterion is not applied.

BP6

BP6 (Not Applied)

According to standard ACMG guidelines, the rule for BP6 is: 'Reputable source reports variant as benign, but without accessible evidence'. The evidence for this variant shows ClinVar reports as likely benign by three labs but details are not provided; however, given conflicting classifications, insufficient for BP6. Therefore, this criterion is not applied.

BP7

BP7 (Not Applied)

According to standard ACMG guidelines, the rule for BP7 is: 'Synonymous variant with no predicted impact on splicing'. The evidence for this variant shows it is a 3′ UTR change, not a synonymous codon. Therefore, this criterion is not applied.