LYFE Sciences · Project HERA
Variant Interpretation · Classification Report
Variant classification summary
NM_005228.5:c.2155G>A
EGFR
· NP_005219.2:p.(Gly719Ser)
· NM_005228.5
GRCh37: chr7:55241707 G>A
·
GRCh38: chr7:55174014 G>A
Gene:
EGFR
Transcript:
NM_005228.5
Final call
Likely Pathogenic
PS3 strong
PM2 supporting
PP3 moderate
Variant details
Gene
EGFR
Transcript
NM_005228.5
Protein
NP_005219.2:p.(Gly719Ser)
gnomAD AF
ClinVar
Uncertain significance
OncoKB
Oncogenic
Classification rationale
Interpretation summary
Generated evidence synthesis
1
Likely Pathogenic: PS3 strong supports damaging EGFR p.Gly719Ser function through transformation, constitutive signaling, and tumor formation.
2
Likely Pathogenic: PP3 moderate is supported by REVEL 0.853 exceeding the 0.773 threshold.
3
Likely Pathogenic: PM2 supporting is supported by absence from available gnomAD datasets.
Final determination:
Under the generic ACMG/AMP 2015 fallback rules, one strong pathogenic criterion plus one moderate pathogenic criterion supports Likely Pathogenic; PM2 supporting is additional concordant evidence.
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: PVS1 requires a null variant (nonsense, frameshift, canonical splice, start-loss or stop-loss), and this is a missense variant. |
pvs1_generic_framework
generic_acmg_combination_rules
|
| PS1 | Not assessed | Not assessed: no established pathogenic comparator with the same Gly719Ser amino-acid change but a different nucleotide change was documented. |
PMID:16187797
PMID:16199108
PMID:23468066
clinvar
|
| PS2 | Not assessed | Not assessed: no germline proband record, confirmed maternity and paternity, or documented absence of family history is available. |
PMID:16187797
PMID:16199108
PMID:23468066
|
| PS3 | Met | Met, strong: EGFR p.G719S produced transformation, constitutive signaling, drug-sensitive growth, and mouse tumors, including approximately 15-fold increased anchorage-independent growth. |
PMID:16187797
|
| PS4 | Not assessed | Not assessed: exact-variant case reports lack matched control counts, so the required OR >5.0 and 95% CI excluding 1.0 cannot be calculated. |
PMID:16187797
PMID:16199108
PMID:23468066
PMID:18573086
|
| PM1 | Not assessed | Not assessed: Gly719 is in the kinase domain and a reported hotspot, but absence of benign variation for that region was not established. |
PMID:18573086
hotspots
|
| PM2 | Met | Met at supporting strength: the variant is absent across available gnomAD datasets, giving observed frequency 0, below the <=0.0001 PM2 threshold. |
gnomad_v2
gnomad_v4
gnomad_canada
|
| PM3 | Not assessed | Not assessed: tumor reports show EGFR c.2155G>A with p.E709A, but no pathogenic second allele or parental testing establishes trans phase. |
PMID:23468066
PMID:16199108
|
| PM4 | N/A | Not applicable: PM4 requires a protein-length change, and this is a missense variant. |
pvs1_generic_framework
generic_acmg_combination_rules
|
| PM5 | Not assessed | Not assessed: no different missense substitution at Gly719 with an established pathogenic determination was documented. |
pm5_candidates
clinvar
PMID:16187797
PMID:16199108
PMID:23468066
|
| PM6 | Not assessed | Not assessed: no germline proband record or parental testing, even without confirmation, is documented for this variant. |
PMID:16187797
PMID:16199108
PMID:23468066
|
| PP1 | Not assessed | Not assessed: zero affected relatives, informative meioses, or phenotype-consistent genotype segregation observations are documented. |
PMID:16187797
PMID:16199108
PMID:23468066
|
| PP2 | Not assessed | Not assessed: EGFR missense disease-mechanism evidence is available, but no validated gene-level low benign-missense rate was provided. |
PMID:16187797
oncokb
PMID:18573086
|
| PP3 | Met | Met at moderate strength: REVEL 0.853 meets the generic PP3 moderate threshold of >=0.773 for this missense variant. |
revel
|
| PP4 | Not assessed | Not assessed: the available records describe somatic NSCLC tumor findings, not a patient phenotype or family history specific to a single-gene disease. |
PMID:16199108
PMID:23468066
|
| PP5 | Not met | Not met: ClinVar has zero expert-panel submissions, and its exact-variant Likely pathogenic assertion is a non-expert submission without criteria. |
clinvar
oncokb
|
| BA1 | Not met | Not met: the variant is absent from gnomAD v2.1 and v4.1, rather than present at the >=0.05 BA1 frequency threshold. |
gnomad_v2
gnomad_v4
|
| BS1 | Not met | Not met: all available gnomAD datasets report absence, so no grpmax FAF reaches the generic BS1 threshold of 0.01. |
gnomad_v2
gnomad_v4
gnomad_canada
|
| BS2 | Not assessed | Not assessed: no healthy adult germline observation is documented, and the required early-onset full-penetrance disease context is not established. |
gnomad_v2
gnomad_v4
gnomad_canada
|
| BS3 | Not met | Not met: EGFR p.G719S showed EGF-independent transformation, constitutive signaling, increased growth, and tumor formation rather than absence of damaging effect. |
PMID:16187797
|
| BS4 | Not assessed | Not assessed: no affected family members with documented genotypes are available for a non-segregation comparison. |
PMID:16187797
PMID:16199108
PMID:23468066
|
| BP1 | Not assessed | Not assessed: no disease-specific evidence showed that EGFR-related disease is caused primarily by truncating rather than missense variants. |
PMID:16187797
PMID:18573086
oncokb
|
| BP2 | Not assessed | Not assessed: a tumor co-occurrence with p.E709A lacks phase determination and does not establish the second variant as pathogenic. |
PMID:23468066
PMID:16199108
|
| BP3 | N/A | Not applicable: BP3 requires an in-frame indel in a repeat region, and this is a missense variant. |
pvs1_generic_framework
generic_acmg_combination_rules
|
| BP4 | Not met | Not met: REVEL 0.853 is above the generic BP4 supporting threshold of <=0.29 for this missense variant. |
revel
|
| BP5 | Not assessed | Not assessed: one tumor had a second EGFR variant, but no report establishes an alternate molecular basis as the cause of disease. |
PMID:23468066
|
| BP6 | Not met | Not met: no exact-variant ClinVar expert-panel Benign or Likely benign classification is present. |
clinvar
|
| BP7 | N/A | Not applicable: BP7 requires a synonymous variant, and this is a missense variant. |
generic_acmg_combination_rules
|
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.