Classification rationale
1
The TP53 c.832_839dup (p.Arg280SerfsTer68) variant has not been observed in COSMIC and has not been reported in ClinVar.
clinvar ↗2
This variant is absent from gnomAD v2.1, gnomAD v4.1, and gnomAD-Canada v1.0, supporting rarity below the TP53 VCEP PM2 threshold.
gnomad_v2 ↗ gnomad_v4 ↗ gnomad_canada ↗ cspec ↗3
The duplication causes a frameshift predicted to truncate TP53 at p.Arg280SerfsTer68, and because the premature stop is upstream of p.Lys351, the TP53 VCEP PVS1 flowchart supports PVS1.
cspec ↗4
SpliceAI predicts no significant splice impact for this variant, with a maximum delta score of 0.00.
spliceai ↗