LYFE Sciences · Project HERA
Variant Interpretation · Classification Report
Variant classification summary
NM_006231.4:c.2113C>T
POLE
· NP_006222.2:p.(Arg705Trp)
· NM_006231.4
GRCh37: chr12:133245002 G>A
·
GRCh38: chr12:132668416 G>A
Gene:
POLE
Transcript:
NM_006231.4
Final call
VUS
PM2 supporting
Variant details
Gene
POLE
Transcript
NM_006231.4
Protein
NP_006222.2:p.(Arg705Trp)
gnomAD AF
5.581014628459454e-06 (v4.1)
ClinVar
Uncertain significance
OncoKB
Unknown Oncogenic Effect
Classification rationale
Interpretation summary
Generated evidence synthesis
1
VUS: PM2 supporting because the gnomAD v4.1 allele frequency is 5.581014628459454e-06, below 0.0001.
2
VUS: no pathogenic criterion is met for this missense variant.
3
VUS: no benign criterion or benign combination is met.
Final determination:
Under the local POLE framework's ACMG/AMP 2015 combination thresholds, one supporting PM2 criterion alone matches no Pathogenic, Likely Pathogenic, Benign, or Likely Benign rule and therefore yields VUS.
Criteria assessment
ACMG/AMP criteria review
Criteria shown when status is available
All criteria require review: For research and educational purposes only.
| Criterion | Status | Rationale | Evidence used |
|---|---|---|---|
| PVS1 | N/A | Not applicable: NM_006231.4:c.2113C>T is a missense variant, p.Arg705Trp, not a nonsense, frameshift, or canonical splice loss-of-function variant. |
pvs1_variant_assessment
pvs1_generic_framework
|
| PS1 | Not met | Not met: governing tables identify R705W but no different pathogenic Arg705 substitution establishing the same-amino-acid-change criterion. |
vcep_path_250_323
vcep_path_250_323_s002
|
| PS2 | Not assessed | Not assessed: no proband-parent testing or confirmed de novo observation is documented for NM_006231.4:c.2113C>T. |
clinvar
|
| PS3 | Not assessed | Not assessed: no variant-specific validated functional assay, controls, or damaging functional readout were documented for p.Arg705Trp. |
oncokb
PMID:25741868
|
| PS4 | Not met | Not met: p.R705W appears in 0 COSMIC and 1 TCGA endometrial-carcinoma case, totaling 1 versus the >=10 PS4 requirement. |
vcep_path_250_323_s002
vcep_path_250_323
|
| PM1 | Not met | Not met: R705W is exon 19 with EDM Signature 10 contribution N and is absent from the governing POLE PM1 exact-variant lists. |
vcep_path_250_323
vcep_path_250_323_s002
|
| PM2 | Met | Met at supporting: gnomAD v4.1 total AF is 5.581014628459454e-06, below the generic PM2 threshold of 0.0001. |
gnomad_v2
gnomad_v4
generic_acmg_combination_rules
PMID:25741868
|
| PM3 | Not assessed | Not assessed: no affected-proband, second-pathogenic-variant, or validated in-trans phase observation is available for PM3. |
|
| PM4 | N/A | Not applicable: p.Arg705Trp is a missense substitution with no amino-acid insertion, deletion, or protein-length change. |
generic_acmg_combination_rules
pvs1_variant_assessment
|
| PM5 | Not met | Not met: no different pathogenic or likely pathogenic missense variant at Arg705 was identified in the governing tables. |
vcep_path_250_323
vcep_path_250_323_s002
|
| PM6 | Not assessed | Not assessed: no unconfirmed de novo observation or parental genotyping is documented for this POLE variant. |
clinvar
|
| PP1 | Not assessed | Not assessed: no affected relatives, informative meioses, or genotype-phenotype segregation results are documented. |
clinvar
|
| PP2 | Not met | Not met: no applicable POLE PP2 rule or validated low-benign-missense/high-pathogenic-missense dataset supports this exon 19 variant. |
vcep_path_250_323
|
| PP3 | Not met | Not met: REVEL 0.321 is below the generic PP3 supporting threshold of 0.644 and the POLE table labels p.R705W Likely benign, not likely disease causing. |
vcep_path_250_323_s003
revel
|
| PP4 | Not assessed | Not assessed: no patient-level phenotype or disease-specific clinical feature set is available to evaluate PP4. |
|
| PP5 | Not met | Not met: ClinVar has zero expert-panel submissions for this exact variant, and the aggregate classification is Uncertain significance. |
clinvar
|
| BA1 | Not met | Not met: the highest observed population AF is 5.04083e-05, far below the generic BA1 threshold of 0.05. |
gnomad_v2
gnomad_v4
generic_acmg_combination_rules
PMID:25741868
|
| BS1 | Not met | Not met: the highest observed population AF is 5.04083e-05, below the generic BS1 threshold of 0.01. |
gnomad_v2
gnomad_v4
generic_acmg_combination_rules
PMID:25741868
|
| BS2 | Not met | Not met: gnomAD v2.1 and v4.1 each report 0 homozygotes, with no healthy-adult or penetrance evidence supporting BS2. |
gnomad_v2
gnomad_v4
|
| BS3 | Not assessed | Not assessed: no variant-specific validated functional assay, controls, or normal-function readout were documented for p.Arg705Trp. |
oncokb
PMID:25741868
|
| BS4 | Not assessed | Not assessed: no informative unaffected-relative testing or documented non-segregation is available for this variant. |
clinvar
|
| BP1 | Not met | Not met: POLE has established pathogenic missense exonuclease-domain variants, so a primarily truncating disease mechanism is not established for BP1. |
vcep_path_250_323
|
| BP2 | Not assessed | Not assessed: no linked pathogenic variant or phase-resolved cis observation is available to evaluate BP2. |
|
| BP3 | N/A | Not applicable: p.Arg705Trp is not an in-frame insertion or deletion in a repetitive region and has no repeat-associated protein-length alteration. |
generic_acmg_combination_rules
pvs1_variant_assessment
|
| BP4 | Not met | Not met: REVEL 0.321 exceeds the generic BP4 supporting threshold of 0.29, while the POLE table reports only 1 benign result versus the required 4. |
vcep_path_250_323_s003
revel
|
| BP5 | Not assessed | Not assessed: no affected individual with a documented alternative pathogenic molecular explanation is reported in the available case evidence. |
|
| BP6 | Not met | Not met: no exact-variant ClinVar expert-panel benign classification exists; available submissions are all Uncertain significance. |
clinvar
|
| BP7 | N/A | Not applicable: c.2113C>T is missense and changes p.Arg705 to Trp, whereas BP7 applies only to synonymous variants. |
|
Disclaimer:
The content and results provided by LYFE Sciences are for research and educational purposes only and must not be used as a substitute for professional medical judgment, diagnosis, or treatment. Always consult a qualified healthcare professional before making any clinical decisions.