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Classification rationale
1

The PTPN11 c.1221A>G (p.Gly407=) variant has not been identified in a statistically significant somatic hotspot and has been reported in ClinVar as Benign, including a benign expert-panel assertion from the ClinGen RASopathy Variant Curation Expert Panel.

hotspots ↗ clinvar ↗
2

In gnomAD, this variant exceeds the PTPN11 RASopathy benign population thresholds, with grpmax filtering allele frequencies of 0.11284% in v2.1 and 0.13502% in v4.1, both above the BA1 threshold of 0.05% and the BS1 threshold of 0.025%.

gnomad_v2 ↗ gnomad_v4 ↗ cspec ↗
3

This synonymous variant does not change the encoded amino acid, and SpliceAI predicts no significant splice impact, with a maximum delta score of 0.02.

spliceai ↗
Applied criteria
Met
Not met
Not assessed
N/A
Very strong
Strong
Moderate
Supporting
Pathogenic evidence
PVS
PVS1
PS
PS1
PS2
PS3
PS4
PM
PM1
PM2
PM3
PM4
PM5
PM6
PP
PP1
PP2
PP3
PP4
PP5
Benign evidence
BA
BA1
BS
BS1
BS2
BS3
BS4
BP
BP1
BP2
BP3
BP4
BP5
BP6
BP7
PVS1
Rationale
Select a criterion to inspect its explanation.
Evidence used
Gaps remaining
Rule
Publications
Research and evidence
gnomAD v2.1 evidence
v2.1
gnomAD v4.1 evidence
v4.1
01
Population
gnomAD v2.1This variant is present in gnomAD v2.1 (AF= 0.000186931; MAF= 0.01869%, 47/251430 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 0.00147001; MAF= 0.14700%, 45/30612 alleles, homozygotes = 0); grpmax FAF= 0.00112836.
gnomAD v4.1This variant is present in gnomAD v4.1 (AF= 9.11228e-05; MAF= 0.00911%, 147/1613208 alleles, homozygotes = 0) and has highest observed frequency in the South Asian population (AF= 0.00155945; MAF= 0.15594%, 142/91058 alleles, homozygotes = 0); grpmax FAF= 0.00135023.
ClinVar evidence
02
ClinVar
This variant has been reported in ClinVar as Benign (8 clinical laboratories) and as Uncertain significance (1 clinical laboratory) and as Benign by ClinGen RASopathy Variant Curation Expert Panel (expert panel).
Functional evidence
03
Functional
OncoKB: Unknown Oncogenic Effect
OncoKB identified curated literature and non-variant-specific oncogenicity context for review; listed oncogenicity label: Unknown Oncogenic Effect.
In silico evidence
04
In silico
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.02).
COSMIC evidence
05
COSMIC
This variant does not lie in a statistically significant hotspot. This variant has not previously been reported in somatic cancers (COSMIC).
Cancer hotspots evidence
06
Cancer hotspots Not found
This variant does not lie in a statistically significant hotspot.
ResidueG407